日本語

Academic Publications

Fiscal 2019

108.Cameron Gilroy, Kensaku Endo, Shun Hashiyada, Affar S. Karimullah, Laurence D. Barron, Hiromi Okamoto, Yoshihiko Togawa, and Malcolm Kadodwala
“Chiral Plasmonic Nano-Interferometers for Ultrasensitive Biotection”
submitted.

107.F. J. T. Goncalves, Y. Shimamoto, T. Sogo, G. W. Paterson, Y. Kousaka, and Y. Togawa
“Effect of disorder on the collective excitations of the chiral spin soliton lattice”
submitted.
arXiv:1903.10129.

106.Jun-ichiro Kishine, Vl.E. Sinitsyn, I.G. Bostrem, Igor Proskurin, F. J. T. Goncalves, Y. Togawa, and A.S. Ovchinnikov
“Theory of standing spin waves in finite-size chiral soliton lattice”
accepeted in Phys. Rev. B.
arXiv:1903.11675
.

105.Cameron Gilroy, Shun Hashiyada, Kensaku Endo, Affar Shahid Karimullah, Laurence D. Barron, Hiromi Okamoto, Yoshihiko Togawa and Malcolm Kadodwala
“The roles of superchirality and interference in chiral plasmonic biodetection”
accepeted in The Journal of Physical Chemistry.

104.Gary W. Paterson, Tsukasa Koyama, Misako Shinozaki, Yusuke Masaki, Francisco. J. T. Goncalves, Yusuke Shimamoto, Tadayuki Sogo, Magnus Nord, Yusuke Kousaka, Yusuke Kato, Stephen McVitie, and Yoshihiko Togawa
“Order and Disorder in the Magnetisation of the Chiral Crystal CrNb3S6”
accepeted in Phys. Rev. B.
arXiv:1903.09519.

103.M. Mito, H. Ohsumi, T. Shishidou, F. Kuroda, M. Weinert, K. Tsuruta, Y. Kotani, T. Nakamura, Y. Togawa, J. Kishine, Y. Kousaka, J. Akimitsu, and K. Inoue
“Observation of orbital angular momentum in the chiral magnet CrNb3S6 by soft x-ray magnetic circular dichroism”
Physical Review B 99, 174439/1-12 (2019).

102.S. Hashiyada, K. Endo, T. Narushima, Y. Togawa, and H. Okamoto
“Spectral properties of chiral electromagnetic near fields created by chiral plasmonic nanostructures”
2018 Joint Symposia on Optics, (Optical Society of America, 2018), paper 30aCJ4.

 

Fiscal 2018

101.R. Aoki, Y. Kousaka, Y. Togawa
“Anomalous nonreciprocal electrical transport on chiral magnetic order”
Physical Review Letters 122, 057206/1-6 (2019).

100.Y. Togawa, J. Kishine, P. A. Nosov, T. Koyama, G. W. Paterson, S. McVitie, Y. Kousaka, J. Akimitsu, M. Ogata, A. S. Ovchinnikov
“Anomalous temperature behavior of the chiral spin helix in CrNb3S6 thin lamellae”
Physical Review Letters 122, 017204/1-6 (2019).
 (a) Press Release available in Japanese and English.

99.F. J. T. Goncalves, T. Sogo, Y. Shimamoto, I. Proskurin, Vl. E. Sinitsyn, Y. Kousaka, I. G. Bostrem, J. Kishine, A. S. Ovchinnikov, Y. Togawa
“Tailored resonance in micrometer-sized monoaxial chiral helimagnets”
Physical Review B 98, 144407/1-10 (2018).

98.Y. Masaki, R. Aoki, Y. Togawa, Y. Kato
“Chiral solitons in monoaxial chiral magnets in tilted magnetic field”
Physical Review B 98, 100402(R)/1-5 (2018).
 (a) Rapic Communication.

97.S. Fukui, M. Kato, Y. Togawa, O. Sato
“Effects of chirality of a helical magnetic field on a superconductor”
Journal of Physics: Conf. Series 1054, 012027 (2018).

96.S. Fukui, M. Kato, Y. Togawa, O. Sato
“Phase Transition of Vortex States in Two-Dimensional Superconductors under a Oscillating Magnetic Field from the Chiral Helimagnet”
Journal of the Physical Society of Japan 87, 084701 (2018).

95.R. Aoki, Y. Togawa, S. Ohara
“Electrical transport properties of micrometer-sized samples of the rare-earth chiral magnet YbNi3Al9”
Physical Review B 97, 214414/1-7 (2018). 

94.M. Shinozaki, Y. Masaki, R. Aoki, Y. Togawa, Y. Kato
“Intrinsic hysteresis due to the surface barrier for chiral solitons in monoaxial chiral helimagnets”
Physical Review B 97, 214413/1-8 (2018).  
 (a) Selected as Editors' Suggestion.

93.K. Tsuruta, M. Mito, Y. Togawa, Y. Kousaka, J. Akimitsu, K. Inoue
“Effects of dynamic stress in magnetic superlattice of a monoaxial chiral magnet Cr1/3NbS2”
Journal of Physics: Conf. Series 969, 012132/1-6 (2018).

 

Fiscal 2017

92.G. Berruto, I. Madan, Y. Murooka, G. M. Vanacore, E. Pomarico, J. Rajeswari, R. Lamb, P. Huang, A. J. Kruchkov, Y. Togawa, T. LaGrange, D. McGrouther, H. M. Rønnow, F. Carbone
“Laser-induced Skyrmion writing and erasing in an ultrafast cryo-Lorentz transmission electron microscope”
Physical Review Letters 120, 117201 (2018). 
 (a) Selected as Editors' Suggestion.
 (b) EPFL news.
 (c) News Sites: PHYSORG(2nd Mar. 2018).

91.M. Mito, H. Ohsumi, K. Tsuruta, Y. Kotani, T. Nakamura, Y. Togawa, M. Shinozaki, Y. Kato, J. Kishine, J. Ohe, Y. Kousaka, J. Akimitsu, K. Inoue
“Geometrical protection of topological magnetic solitons in micro-processed chiral magnets”
Physical Review B 97, 024408 (2018).

90.J. Yonemura, Y. Shimamoto, T. Kida, D. Yoshizawa, Y. Kousaka, S. Nishihara, F. J. T. Goncalves, J. Akimitsu, K. Inoue, M. Hagiwara, Y. Togawa
“Magnetic solitons and magnetic phase diagram of the hexagonal chiral crystal CrNb3S6 in oblique magnetic fields”
Physical Review B 96, 184423 (2017).

89.F. J. T. Goncalves, G. W. Paterson, D. McGrouther, T. Drysdale, Y. Togawa, D. S.Schmool, R. L. Stamps
“Probing microwave fields and enabling in-situ experiments in a transmission electron microscope”
Scientific Reports, 7:11064.

88.S. Fukui, M. Kato, Y. Togawa
“Magnetic field dependence of most stable vortex states in the chiral helimagnet/superconductor bilayer system”
Journal of Physics: Conf. Series 871, 012026 (2017).

87.S. Fukui, M. Kato, Y. Togawa
“Vortex states in a superconductor under a helical magnetic field”
Journal of Physics: Conf. Series 807, 052010 (2017).

 

Fiscal 2016

86.F. J. T. Goncalves, T. Sogo, Y. Shimamoto, Y. Kousaka, J. Akimitsu, S. Nishihara, K. Inoue, D. Yoshizawa, M. Hagiwara, M. Mito, R. L. Stamps, I. G. Bostrem, V. E. Sinitsyn, A. S. Ovchinnikov, J. Kishine, Y. Togawa
“Collective resonant dynamics of the chiral spin soliton lattice in a monoaxial chiral magnetic crystal”
Physical Review B 95, 104415 (2017).

85.S. Fukui, M. Kato. Y. Togawa
“Dependence of Vortex States in Superconductors on a Chiral Helimagnet and an Applied Magnetic Field”
Physica C, 530, 51–54 (2016).

84.S. Fukui, M. Kato. Y. Togawa
“Effects of chiral helimagnets on vortex states in a superconductor”
Superconductor Science and Technology, 29, 125008 (8 pages) (2016).

83.Y. Togawa, Y. Kousaka, K. Inoue, J. Kishine
“Symmetry, Structure, and Dynamics of Monoaxial Chiral Magnets”
J. Phys. Soc. Jpn. 85, 112001 (2016).
 (a) Invited review paper. Open Access.
 (b) Cover image on a website.
 (c) Top 20 Most Downloaded Articles, from October 2016 to the present month (May 2017).
 (d) Most Cited Articles in 2017 from Vol. 85 (2016). Precisely, the 10 articles published in 2016 that were most frequently cited in 2017.

82.K. Tsuruta, M. Mito, Y. Kousaka, J. Akimitsu, J. Kishine, Y. Togawa, K. Inoue
“Size dependence of discrete change in magnetization in single crystal of chiral magnet Cr1/3NbS2”
J. Appl. Phys. 120, 143901 (2016).

81.D. McGrouther, R. Lamb, M. Krajnak, S. McFadzean, S. McVitie,R. L. Stamps, A. O. Leonov, A. N. Bogdanov, Y. Togawa
“Internal structure of hexagonal skyrmion lattices in cubic helimagnets”
New Journal of Physics 18, 095004 (2016).

80.Y. Miyata, K. Ueno, Y. Togawa, T. Yoshimura, A. Ashida, N. Fujimura
“Large enhancement of positive magnetoresistance by Ce doping in Si epitaxial thin films”
Appl. Phys. Lett. 109, 112101 (2016).

79.A. O. Leonov, Y. Togawa, T. L. Monchesky, A. N. Bogdanov, J. Kishine, Y. Kousaka, M. Miyagawa, T. Koyama, J. Akimitsu, Ts. Koyama, K. Harada, S. Mori, D. McGrouther, R. Lamb, M. Krajnak, S. McVitie, R. L. Stamps, K. Inoue
“Chiral Surface Twists and Skyrmion Stability in Nanolayers of Cubic Helimagnets”
Phys. Rev. Lett. 117, 087202 (2016).

78.V. Laliena, J. Campo, J. Kishine, A. S. Ovchinnikov, Y. Togawa, Y. Kousaka, K. Inoue
“Incommensurate-commensurate transitions in the monoaxial chiral helimagnet driven by the magnetic field”
Physical Review B 93, 134424 (2016).

 

Fiscal 2015

77.K. Tsuruta, M. Masaki, Y. Kousaka, J. Akimitsu, J. Kishine, Y. Togawa, H. Ohsumi, K. Inoue
“Discrete Change in Magnetization by Chiral Soliton Lattice Formation in Chiral Magnet Cr1/3NbS2”
Journal of the Physical Society of Japan 85, 013707 (2016).
 (a) Open Access.
 (b) Most Cited Articles in 2017 from Vol. 85 (2016). Precisely, the 10 articles published in 2016 that were most frequently cited in 2017.

76.D. Yoshizawa, J. Kishine, Y. Kousaka, Y. Togawa, M. Mito, J. Akimitsu, K. Inoue, M. Hagiwara
“Magnetic resonance in the chiral helimagnet CrNb3S6”
Physics Procedia 75, 926–931 (2015).

75.Y. Togawa, T. Koyama, Y. Nishimori, Y. Matsumoto, S. McVitie, D. McGrouther, R. L. Stamps, Y. Kousaka, J. Akimitsu, S. Nishihara, K. Inoue, I. G. Bostrem, Vl. E. Sinitsyn, A. S. Ovchinnikov, J. Kishine
“Magnetic Soliton Confinement and Discretization Effects Arising from Macroscopic Coherence in a Chiral Spin Soliton Lattice”
Physical Review B 92, 220412(R) (2015).  
 (a) Rapid Communication.
 (b) Selected as Editors' Suggestion. Open Access
 (c) Press Release available in Japanese and English.
 (d) Newpapers: 日刊工業新聞(2015/12/18) 第33面, 中国新聞(2015/12/18) 第27面,
 
  科学新聞(2016/1/1) 第4面, 日本経済新聞(2016/1/11) 第13面
 (e) News Sites: e.g., AlphaGalileo(10th Feb. 2016), EurekAlert! & PHYSORG(11th Feb. 2016).

74.S. Fukui, M. Kato. Y. Togawa
“Vortex structures in a chiral helimagnet/superconductor bilayer structure”
Physics Procedia 65, 85–88 (2015), Proceedings of the 27th International Symposium on Superconductivity (ISS2014)

 

Fiscal 2014

73.M. Nagao, A. Hayashi, M. Tatsumisago, T. Ichinose, T. Ozaki, Y. Togawa, S. Mori
“Li2S nanocomposites underlying high-capacity and cycling stability in all-solid-state lithium-sulfur batteries”
Journal of Power Sources 274, 471–476 (2015).

72.Y. Kousaka, Y. Takahashi, N. Ikeda, H. Matsui, J. Kishine, Y. Togawa, M. Miyagawa, S. Nishihara, K. Inoue, J. Akimitsu
“Weak Ferromagnetism in Chiral Inorganic Compound CrSi”
JPS Conf. Proc. 3, 014037 (2014), Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2013).

71.Y. Togawa, T. Koyama, S. Mori, Y. Kousaka, J. Akimitsu, S. Nishihara, K. Inoue, S. A. Ovchinnikov, J. Kishine
“Chiral Soliton Lattice in Chiral Magnetic Crystal CrNb3S6”
Journal of the Japan Society of Powder and Powder Metallurgy 61, S34-S36 (2014).

 

Fiscal 2013

70.Y. Togawa, Y. Kousaka, S. Nishihara, K. Inoue, J. Akimitsu, A. S. Ovchinnikov, and J. Kishine
“Interlayer Magnetoresistance due to Chiral Soliton Lattice Formation in Hexagonal Chiral Magnet CrNb3S6”
Physical Review Letters 111, 197204 (2013).

69.T. Matsuyama, A. Sakuda, A. Hayashi, Y. Togawa, S. Mori, M. Tatsumisago
“Electrochemical properties of all-solid-state lithium batteries with amorphous titanium sulfide electrodes prepared by mechanical milling”
Journal of Solid State Electrochemistry, 17 2697-2701 (2013).

68.Y. Togawa
“Small-angle electron scattering of magnetic fine structures”
Microscopy, 62 (Suppl 1), S75-S86 (2013). (Special Issue: “Tribute to Akira Tonomura”)

67.戸川欣彦、小山司、森茂生
“電子線小角散乱法を用いた磁気的微細構造解析”
日本結晶学会誌 55, 121-127 (2013).

 

Fiscal 2012

66.K. Takayanagi, T. Koyama, S. Mori, K. Harada, Y. Togawa,
“Small-angle electron scattering from magnetic artificial lattice”
J. Electron Microscopy, 61, 401-407 (2012). (Invited Paper)

65.K. Kobayashi, T. Koyama, H. Kamo, Y. Togawa, Y. Horibe, S. W. Cheong, S. Mori,
“Doping Effect on Interlocked Ferroelectric and Structural Antiphase Domains in YMnO3”
Jpn. J. Appl. Phys. 51. 09LE09 (2012).

64.T. Matsuyama, A. Hayashi, A. Sakuda, Y. Togawa, S. Mori, M. Tatsumisago
“Preparation of amorphous TiSx thin film electrodes by the PLD method and their application to all-solid-state lithium secondary batteries”
Journal of Materials Science 47, 6601-6606 (2012).

 

Fiscal 2011

63.Y. Togawa, T. Koyama, K. Takayanagi, S. Mori, Y. Kousaka, J. Akimitsu, S. Nishihara, K. Inoue, A. S.Ovchinnikov, J. Kishine
“Chiral magnetic soliton lattice on chiral helimagnet”
Physical Review Letters, 108, 107202-1-5 (2012).
 (a) Selected as Spotlighting Exceptional Research in American Physical Society.
 (b) Highlighted in a Viewpoint in Physics 5, 28 (2012).
 (c) 日経産業新聞(2012/2/28)
.
 (d) Highly Cited Paper (Top 1%).

62.T. Koyama, S. Yano, Y. Togawa, Y. Kousaka, S. Mori, K. Inoue, J. Kishine, J. Akimitsu
“Unconventional magnetic domain structure in the ferromagnetic phase of MnP single crystals”
Journal of the Physical Society of Japan Letters, 81, 043701-1-4 (2012).

61.T. Koyama, K. Takayanagi, Y. Togawa, S. Mori, K. Harada
“Small angle electron diffraction and deflection”
AIP Advances, 2, 012195-1-7 (2012).

60.T. Koyama, Y. Togawa, K. Takenaka, S. Mori
“Ferromagnetic microstructures in the ferromagnetic metallic phase of La0.825Sr0.175MnO3”
J. Appl. Phys. 111, 07B104-1-3 (2012)

 

Fiscal 2010

59.Y. Togawa, T. Kimura, K. Harada, A. Tonomura, Y. Otani
“Control of magnetic domain nucleation using spin current in Permalloy nanowires”
Journal of Physics D: Applied Physics 44, 064015-1-7 (2011).

58.S. Nonoguchi, Y. Ando, Y. Togawa, T. Kimura
“Spin transport properties in polycrystalline Gd film and strip”
IEEE Xplore TENCON2010, 1881-1884 (2010).

57.K. Takayanagi, S. Mori, Y. Togawa
“Magnetic Ripple in Permalloy Narrow Wires Investigated by Lorentz Microscopy”
IEEE Xplore TENCON2010, 1875-1877 (2010).

56.Y. Togawa, T. Kimura, K. Harada, A. Tonomura, Y. Otani
“Stochastic nature of current-excited magnetic domain and domain wall dynamics microscopically investigated by Lorentz microscopy”
IEEE Xplore TENCON2010, 122-125 (2010).

55.Y. Togawa, K. Takayanagi, T. Kimura, K. Harada, T. Akashi, A. Tonomura, S. Mori, Y. Otani
“Crystalline analysis of Permalloy narrow wires subject to current pulses”
J. Appl. Phys. 107, 09A326-1-3 (2010).

54.S. Mori, K. Yoshidome, Y. Nagamine, Y. Togawa, K. Yoshii, K. Takenaka
“Lorentz TEM observation of magnetic domains in La0.825Sr0.175(Mn,Al)O3”
J. Appl. Phys. 107, 09D306-1-3 (2010).

53.戸川欣彦、木村崇、原田研、明石哲也、外村彰、大谷義近
“スピン流に誘起される磁化ダイナミクス”
顕微鏡(日本顕微鏡学会誌)45, 156-160 (2010).

 

Fiscal 2009

52.S. Mori, K. Yoshidome, Y. Nagamine, Y. Togawa, K. Yoshii, K. Takenaka
“Magnetic properties and ferromagnetic microstructures in Al-doped La1-xSrxMnO3”
Journal of Physics: Conference Series 200, 012129 (2010).

 

Fiscal 2008

51.Y. Togawa, T. Kimura, K. Harada, T. Akashi, T. Matsuda, A. Tonomura, Y. Otani
“Current-excited magnetization reversal under in-plane magnetic field in a nano-scaled ferromagnetic wire”
Appl. Phys. Lett. 92 012505 (2008).
 (a) 2009年度風戸研究奨励賞
 (b) 日本経済新聞社2008 年第一回技術トレンド調査第12 位(2008/4/10)
 (c) 日刊工業新聞、日経産業新聞、化学工業日報(2007/12/27)
 (d) 科学新聞(2008/1/11)

50.Y. Togawa, T. Kimura, K. Harada, T. Akashi, T. Matsuda, A. Tonomura, Y. Otani
“Lorentz microscopy and electron holography studies of current-excited magnetization dynamics in Permalloy nanowires”
Proc SPIE 7036, 703617 (2008).

 

Fiscal 2007

49.戸川欣彦, 原田研,松田強,外村彰,明石哲也,木村崇,大谷義近
“電子顕微鏡による電流励起磁化ダイナミクスの観察”
日本結晶学会誌 49, 307-312 (2007).

48.戸川欣彦 “磁壁、スピントルク”
日本結晶学会誌 第49巻5号(2007) pp. 314.

 

Fiscal 2006

47.Y. Togawa, T. Kimura, K. Harada, T. Akashi, T. Matsuda, A. Tonomura, Y. Otani
“Domain nucleation and annihilation in uniformly magnetized state under current pulses in narrow ferromagnetic wires”
Jpn. J. Appl. Phys., Exp. Lett. 45, L1322 - L1324 (2006).

46.Y. Togawa, T. Kimura, K. Harada, T. Akashi, T. Matsuda, A. Tonomura, Y. Otani
“Current-excited magnetization dynamics in narrow ferromagnetic wires”
Jpn. J. Appl. Phys., Exp. Lett. 45, L683–L685 (2006).
 (a) 2008年度 応用物理学会論文賞 第30回JJAP論文奨励賞

45.Y. Togawa, K.Harada, T.Akashi, H.Kasai, T. Matsuda, A. Maeda, A. Tonomura
“Direct observation of rectified motion of vortices by Lorentz microscopy”
PRAMANA–J.Phys. 66, 279-287 (2006).

44.戸川欣彦, 原田研, 松田強, 葛西裕人, 外村彰, 明石哲也, 前田京剛, フランコ ノリ
“ラチェット機構による磁束量子の運動制御” まてりあ 45, 894 (2006).

43.K. Harada, T. Matsuda, A. Tonomura, T. Akashi, Y. Togawa
“Triple-biprism electron inteferometry”
Journal of Applied Physics: Vol. 99, No. 11 (2006) pp. 113502- 1 – 7.

42.原田研、松田強、外村彰、明石哲也、戸川欣彦
“2段電子線バイプリズム干渉法による干渉縞の方位角コントロール”
まてりあ 45巻12号 (2006) pp. 888.

41.Y. Togawa, K. Harada, T. Akashi, H. Kasai, T. Matsuda, F. Nori, A. Maeda, A. Tonomura
“Manipulation of vortices in niobium superconductors using ratchet system”
Proceedings of 16th International Microscopy Congress (IMC 2006) (2006) pp.1522.

40.K. Harada, T. Akashi, Y. Togawa, T. Matsuda, A. Tonomura
“Triple-biprism electron interferometry”
Proceedings of 16th International Microscopy Congress (IMC 2006) (2006) pp.719.

39.T. Akashi, T. Matsuda, Y. Togawa, A. Sugawara, H. Kasai, T. Yoshida, K. Harada, A, Tonomura
“Confirmation method of information transfer using “Chromatic” lattice images”
Proceedings of 16th International Microscopy Congress (IMC 2006) (2006) pp.587.

 

Before Fiscal 2005

Research on Transimission Electron Microscopy

38.T. Akashi, A. Sugawara, H. Kasai, T. Yoshida, T. Matsuda, Y. Togawa, K. Harada, A. Tonomura
“Confirmation of information transfer using lattice images”
Appl. Phys. Lett. 87, 174101 (2005).

37.K. Harada, T. Akashi, Y. Togawa, T. Matsuda, A. Tonomura
“Variable interference azimuth angle double-biprism electron interferometry”
Jpn. J. Appl. Phys. 44, L636 – L639 (2005).

36.K. Harada, T. Akashi, Y. Togawa, T. Matsuda, A. Tonomura
“Optical system for double-biprism electron holography”
J. Electron Microscopy 54,19–27(2005).
 (a) 日本顕微鏡学会第23回論文賞受賞

35.K. Harada, Y. Togawa, T. Akashi, T. Matsuda, A. Tonomura
“Double-biprism electron holography and its applications”
Microscopy & Microanalysis: Vol. 10, Suppl. 2 (August, 2004) pp. 986 – 987CD.

34.K. Harada, T. Akashi, Y. Togawa, T. Matsuda, A. Tonomura
“Double-biprism electron interferometory”
Appl. Phys. Lett. 84, 3229 – 3231 (2004).

33.K. Harada, T. Matsuda, T. Akashi, Y. Togawa, A. Tonomura
“High-resolution observation by double-biprism electron holography”
J. Appl. Phys. 96, 6097-6102 (2004)

32.K. Harada, Y. Togawa, T. Akashi, T. Matsuda, A. Tonomura
“Double-biprism electron holography II – High-resolution holography –”
Proceedings of 8th Asia-Pacific Electron Microscopy Meeting (8APEM): by The Japanese Society of Microscopy (2004) pp.100 – 101.

31.K. Harada, Y. Togawa, T. Akashi, T. Matsuda, A. Tonomura
“Double-biprism electron holography I – Principle and its optical systems –”
Proceedings of 8th Asia-Pacific Electron Microscopy Meeting (8APEM): by The Japanese Society of Microscopy (2004) pp.90 – 91.

 

Research on Quantum Condensates (Superconducting flux quanta etc.)

30.Y. Togawa, K. Harada, T. Akashi, H. Kasai, T. Matsuda, F. Nori, A. Maeda, A. Tonomura
“Direct observation of rectified motion of vortices in a niobium superconductor”
Physical Review Letters 95, 087002 (2005).
 (a) 2007年度 第4回理研フロンティア研究システム大賞受賞

29.Y. Togawa, K. Harada, T. Akashi, H. Kasai, T. Matsuda A. Maeda, A. Tonomura
“Rectified motion of vortices in a niobium superconductor observed by Lorentz microscopy”
Physica C 426-431, 141-146 (2005).

28.Y. Togawa, T. Akashi, H. Kasai, K. Harada, T. Matsuda, A. Tonomura
“Rectified motion of vortices in a superconductor”
Proceedings of 8th Asia-Pacific Electron Microscopy Meeting (8APEM): by The Japanese Society of Microscopy (2004) pp.98 – 99.

27.J. Kasai, N. Okazaki, T. Hasegawa, Y. Togawa, T. Sasagawa, J. Shimoyama, K. Kishio, M. Ohtani, T. Fukumura, M. Kawasaki, H. Koinuma
"Observation of compositional fluctuation by scanning superconducting quantum interference device (SQUID) microscope in superconducting La1.8Sr0.2CuO4"
Japanese Journal of Applied Physics: Vol. 43 (2004) pp. L1327-L1329.

26.K. Harada, M. Beleggia, J. Endo, H. Kasai, Y. Togawa, T. Matsuda, A. Tonomura
“Profile structure of magnetic flux lines in type-Ⅱ superconductor from a rectangular electron hologram”
J. Electron Microscopy 52, 369 – 373 (2003).

25.Y. Togawa, H. Kitano, A. Maeda
“Dynamics phase diagram of driven vortices in Bi2Sr2CaCu2Oy”
J. Low. Temp. Phys. 131, 907-911 (2003).

24.A. Maeda, Y. Togawa, T. Hanaguri, H. Kitano
“Dynamics of vortices in high-Tc superconductors investigated by density and conduction noise measurements”
Studies of high temperature superconductors Vol. 41, edited by A. Narlikar, Chap.10, pp247-274

23.A. Maeda, Y. Togawa, H. Kitano
“Dynamic phase diagram of vortices in high-Tc superconductors determined by experimental studies”
Physica B 329-333, 1346 (2003).

22.A. Maeda, T. Tsuboi, R. Abiru, Y. Togawa, H. Kitano, K. Iwaya, T. Hanaguri
“Local sensitive measurement of local fluctuations of driven vortex density in Bi2Sr2CaCu2Oy”
Phys. Rev. B 65, 054506 (2002).

21.Y. Togawa, H. Kitano, A. Maeda
“Ac-dc interference effects in the dynamics state of vortices in Bi2Sr2CaCu2Oy”
Physica C 378-381, 448-452 (2002).

20.A. Maeda, Y. Togawa, H. Kitano
“An experimental approach to understand dynamical phase diagram of driven vortices of high-Tc superconductors”
Physica C 369, 177-181 (2002).

19.X. Zhao, J. Kasai, N. Okazaki, Y. Nakayama, Y. Togawa, J. Shimoyama, K. Kishio, K. Kitazawa, T. Fukumura, M. Kawasaki, H. Koinuma, T. Hasegawa
“Direct observations of vortices in Bi2212 single crystals by scanning SQUID microscopy”
Superconductor Science and Technology 14, 1124-1127 (2001).

18.J. Kasai, Y. Togawa, T. Sasagawa, J. Shimoyama, K. Kishio, H. Koinuma, T. Hasegawa
“Local magnetic properties of underdoped La2-xSrxCuO4 single crystal probed by scanning superconducting quantum interference device microscopy”
Japanese Journal of Applied Physics: Vol. 40, (2001) pp. L1359 – L1361.

17.J. Kasai, N. Okazaki, Y. Togawa, T. Sasagawa, J. Shimoyama, K. Kishio, H. Koinuma, T. Hasegawa
“Direct observations of vortices in a high-T-c superconductor (La1-xSrx)(2)CuO4 by scanning SQUID microscopy”
Applied Physics A-Materials Science & Processing: 72, (2001) S263-S266.

16.前田京剛, 戸川欣彦, 坪井隆, 北野晴久, 花栗哲郎
“ボルテックス系のダイナミクス ―ノイズ測定による研究―”
日本物理学会誌 56, 427-431 (2001).

15.Y. Togawa, R. Abiru, H. Kitano, A. Maeda
“Bulk Nature of Broadband Noise in Conduction Noise Spectra of Bi2Sr2CaCu2Oy”
Physica C 357-360, 594-596(2001).

14.Y. Togawa, R. Abiru, K. Iwaya, H. Kitano, A. Maeda
“Direct Observation of the washboard noise of a driven vortex lattice in a high-temperature superconductor, Bi2Sr2CaCu2Oy”
Physical Review Letters 85, 3716-3719 (2000).

13.Y. Togawa, R. Abiru, K. Iwaya, H. Kitano, A. Maeda
“Conduction Noise in Bi2Sr2CaCu2Oy” Physica C 341-348(1-4), 1215-1216 (2000).

12.J.G. Naeini, K.C. Hewitt, J.C. Irwin, T. Sasagawa, Y. Togawa, K. Kishio
“Temperature induced normal state redistribution of B1g spectral weight in underdoped La2-xSrxCuO4”
Physica C 341-348 (1-4) 907-908 (2000).

11.A. Maeda, T. Tsuboi, Y. Togawa, R. Abiru, Y. Tsuchiya, K. Iwaya, H. Kitano, T. Hanaguri, J. Takeya, K. Nakamura, Y. Ando
“Dynamics of Vortices and Quasiparticles in the Mixed State of Bi2Sr2CaCu2Oy”
Physica C 335, 148-152 (2000).

10.J. G. Naini, J. C. Irwin, T. Sasagawa, Y. Togawa, K. Kishio
“The pseudogap in (La1−xSrx)2CuO4: A Raman viewpoint”
Canadian Journal of Physics, 78, 483-493 (2000).

9.T. Sasagawa, Y. Togawa, J. Shimoyama, A. Kapitulnik, K. Kitazawa, K. Kishio
“Magnetization and resistivity measurements of the first-order vortex phase transition in (La1−xSrx)2CuO4”
Physical Review B 61, 1610-1617 (2000).

8.Y. Togawa, R. Abiru, K. Iwaya, H. Kitano, A. Maeda
“The Conduction Noise Observed in Bi2Sr2CaCu2Oy Single Crystal”
Advances in Superconductivity XII (Springer-Verlag), 299-301 (2000).
Proceedings of the 12th International Symposium on Superconductivity (ISS'99).

7.A. Maeda, T. Tsuboi, T. Hanaguri, Y. Togawa, R. Abiru, Y. Tsuchiya, K. Iwaya
“Site Sensitive Measurement of Local Fluctuation of Driven Vortex Density in Bi2Sr2CaCu2Oy”
Journal of Low Temperature Physics, 117, 1329 (1999).

6.Y. Koyama, T. Sasagawa, Y. Togawa, K. Otzchi, J. Shimoyama, K. Kitazawa, K. Kishio
“In-Plane Fourfold Symmetry of the Upper Critical Field Observed in La(Sr)214 Single Crystals”
Journal of Low Temperature Physics, 117, 551-555 (1999).

5.T. Sasagawa, Y. Togawa, J. Shimoyama, A. Kapitulnik, K. Kitazawa, K. Kishio
“Vortex Phase Transition and Vortex State in (La0.954Sr0.046)2CuO4 Single Crystals”
Journal of Low Temperature Physics, 117, 1399-1403 (1999).

4.T. Sasagawa, Y. Togawa, J. Shimoyama, K. Kitazawa, and K. Kishio
“Magnetization and entropy changes at the first-order phase-transition of vortex-lattice in (La1−xSrx)2CuO4 single crystals”
Advances in Superconductivity XI (Springer-Verlag), 617-620 (1999).
Proceedings of the 11th International Symposium on Superconductivity (ISS'98).

3.Y. Togawa, T. Sasagawa, J. Shimoyama, K. Kishio
“The second magnetization peak effect observed in (La1−xSrx)2CuO4 single crystals under H//ab”
Advances in Superconductivity XI (Springer-Verlag), 613-616 (1999).
Proceedings of the 11th International Symposium on Superconductivity (ISS'98).

2.T. Sasagawa, K. Kishio, Y. Togawa, J. Shimoyama, K. Kitazawa
“First-Order Vortex-Lattice Phase Transition in (La1−xSrx)2CuO4 Single Crystals: Universal Scaling of the Transition Lines in High Temperature Superconductors”
Physical Review Letters 80, 4297-4300 (1998).

1.T. Sasagawa, K. Kishio, Y. Togawa, J. Shimoyama, K. Kitazawa
“Vortex-Lattice Phase Transition in (La1−xSrx)2CuO4 Single Crystals: Universal Scaling of the Phase Transition Lines in HTSC”
Advances in Superconductivity X (Springer-Verlag), 449 (1998).
Proceedings of the 10th International Symposium on Superconductivity (ISS'97).