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yNamez Hirokazu Fujiwara

 

yBelongingz Thin film physical properties study laboratory D2

 Research Fellowship for Young Scientists, DC1 (JSPS)

 

yResearchz Ferromagnets, Topological materials, Spin-resolved ARPES

 

yHometownz Okayama Prefecture, Japan

 

yResearch achievementz

mPapern

uObservation of intrinsic half-metallic behavior of CrO2 (100) epitaxial films by bulk-sensitive spin-resolved PESv

Hirokazu Fujiwara, Masanori Sunagawa, Kensei Terashima, Tomoko Kittaka, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya

J. Electron Spectrosc. Relat. Phenom. in press.

 

uIntrinsic spin polarized electronic structure of CrO2 epitaxial film revealed by bulk-sensitive spin-resolved photoemission spectroscopyv

Hirokazu Fujiwara, Masanori Sunagawa, Kensei Terashima, Tomoko Kittaka, Takanori Wakita, Yuji Muraoka, and Takayoshi Yokoya

Appl. Phys. Lett. 106, 202404 (2015).

 

uUnusual upper critical field behavior in Nb-doped bismuth selenidesv

K. Kobayashi, T. Ueno, H. Fujiwara, T. Yokoya, and J. Akimitsu.

Phys. Rev. B 95, 180503(R) (2017).

 

uCe 4f electronic states of CeO1|xFxBiS2 studied by soft x-ray photoemission spectroscopyv
Takanori Wakita, Kensei Terashima, Takahiro Hamada, Hirokazu Fujiwara, Makoto Minohara, Masaki Kobayashi, Koji Horiba, Hiroshi Kumigashira, Galif Kutluk, Masanori Nagao, Satoshi Watauchi, Isao Tanaka, Satoshi Demura, Hiroyuki Okazaki, Yoshihiko Takano, Yoshikazu Mizuguchi, Osuke Miura, Kozo Okada, Yuji Muraoka, and Takayoshi Yokoya
Phys. Rev. B 95, 085109 (2017).

 

uPressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite): revealing its intrinsic metallic characterv

S J Denholme, H Okazaki, S Demura, K Deguchi, M Fujioka, T Yamaguchi, H Takeya, M ElMassalami, H Fujiwara, T Wakita, T Yokoya and Y Takano@

Sci. Technol. Adv. Mater. 15, 055007 (2014).@

 

uComparaive ARPES studied of LaOxF1-xBiS2ix=0.23 and 0.46jv

K Terashima, T Wakita, M Sunagawa, H Fujiwara, T Nagayama, K Ono, H Kumigashira, M Nagao, S Watauchi, I Tanaka, H Okazaki, Y Takano, Y Mizuguchi, H Usui, K Kuroki, Y Muraoka and T Yokoya

J. Phys: Conference Series 683, 012002 (2016).

 

uBulk sensitive angle-resolved photoelectron spectroscopy on Nd(O,F)BiS2v

K Terashima, J Sonoyama, M Sunagawa, H Fujiwara, T Nagayama, T Muro, M Nagao, S Watauchi, I Tanaka, H Okazaki, Y Takano, Y Mizuguchi, H Usui, K Suzuki, K Kuroki, T Wakita, Y Muraoka and T Yokoya

J. Phys: Conference Series 683, 012003 (2016).

 

uObservation of a Hidden Hole-Like Band Approaching the Fermi Level in K-Doped Iron Selenide Superconductorv

Masanori Sunagawa, Kensei Terashima, Takahiro Hamada, Hirokazu Fujiwara, Tetsushi Fukura, Aya Takeda, Masashi Tanaka, Hiroyuki Takeya, Yoshihiko Takano, Masashi Arita, Kenya Shimada, Hirofumi Namatame, Masaki Taniguchi, Katsuhiro Suzuki, Hidetomo Usui, Kazuhiko Kuroki, Takanori Wakita, Yuji Muraoka, and Takayoshi Yokoya

J. Phys. Soc. Jpn. 85, 073704 (2016).

 

 

mMeetingn

uObservation spin depolarization due to thermal fluctuation in half-metal CrO2: High-resolution spin-resolved PESv

Hirokazu Fujiwara, Masanori Sunagawa, Kensei Terashima, Makoto Ogata, Koichiro Yaji, Ayumi Harasawa, Shik Shin, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya

JPS Spring meeting 2017

 

uIntrinsic half-metallicity of CrO2 revealed by bulk-sensitive spin-resolved photoemission spectroscopyv

Hirokazu Fujiwara, Masanori Sungawa, Kensei Terashima, Tomoko Kittaka Makoto Ogata, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya

JSAP Fall meeting 2016

 

uObservation of metallic surface states on CrO2 (001) films by depth-resolved photoemission spectroscopyv

Hirokazu Fujiwara, Masanori Sunagawa, Tomoko Kittaka, Takanori Wakita, Kensei Terashima, Takanobu Nagayama, Makoto Ogata, Yuka Matsuura, Fumiya Yoshii, Shin-ichiro Ideta, Kiyohisa Tanaka, Yuji Muraoka, Takayoshi Yokoya

JSAP Fall meeting 2016

 

uIntrinsic half-metallic electronic states of CrO2: Bulk-sensitive spin-resolved photoemission spectroscopyv

Hirokazu Fujiwara, Masanori Sungawa, Kensei Terashima, Tomoko Kittaka, Makoto Ogata, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya

Annual Meetings of Chugoku-Shikoku chapter of JSAP 2016

 

uSurface metallicity of half-metal CrO2(001) filmsv

Hirokazu Fujiwara, Masanori Sunagawa, Kensei Terashima, Takamasa Nagayama, Tomoko Kittaka, Makoto Ogata, Shin-ichiro Ideta, Kiyohisa Tanaka, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya

JPS Spring Meeting 2016

 

uHalf-metallicity of CrO2 revealed by bulk-sensitive spin-resolved photoemission spectroscopyv

Hirokazu FujiwaraCMasanori SunagawaCKensei TerashimaCTomoko KittakaCMakoto OgataCTakanori WakitaCYuji MuraokaCTakayoshi Yokoya

JCS West Japan Chemistry Forum 2015

 

uIntrinsic electronic states of ferromagnetic metal CrO2 revealed by bulk-sensitive spin-resolved photoemission spectroscopyv

Hirokazu FujiwaraCMasanori SunagawaCKensei TerashimaCTomoko KittakaCMakoto OgataCTakanori WakitaCYuji MuraokaCTakayoshi Yokoya

JPS Fall Meeting 2015

 

uBulk sensitive spin-resolved photoemission spectroscopy of half-metallic ferromagnet CrO2 IIv

Hirokazu FujiwaraCMasanori SunagawaCTomoko KittakaCMakoto OgataCKensei TerashimaCTakanori WakitaCYuji MuraokaCTakayoshi Yokoya

JPS Spring Meeting 2015

 

uBulk sensitive spin-resolved photoemission spectroscopy of half-metallic ferromagnet CrO2v

Hirokazu FujiwaraCMasanori SunagawaCTomoko KittakaCKensei TerashimaCTakanori WakitaCYuji MuraokaCTakayoshi Yokoya

JPS Fall Meeting 2014

 

uFinite Temperature Effects in Half-metal CrO2 Studied by Bulk-sensitive Spin-resolved Photoemission Spectroscopyv

Hirokazu Fujiwara, Masanori Sunagawa, Kensei Terashima, Tomoko Kittaka, Makoto Ogata, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya

wInternational Workshop on Superconductivity and Related Functional Materials (IWSRFM) 2016x, Tsukuba, Japan

 

uObservation of Intrinsic Half-metallic Behavior of CrO2 (100) Epitaxial Films by Bulk-sensitive Spin-resolved PESv

H. Fujiwara, M. Sunagawa, K. Terashima, T. Kittaka, T. Wakita, Y. Muraoka, and T. Yokoya

wThe 39th International conference on Vacuum Ultraviolet and X-ray Physicsx, Z_rich, Switzerland (July 2016)

 

uBulk sensitive spin- and angle-resolved photoemission spectroscopy of half-metallic ferromagnet CrO2v

H. Fujiwara, M. Sunagawa, T. Kittaka, K. Terashima, T. Wakita, Y. Muraoka, T. Yokoya

wUshimado International Workshop on Physics and Chemistry of Novel Superconductors and Related Materialsx, Okayama, Japan, (November 2014)

 

yAwardz

EIncentive Award of the 21th JSAP Fall Meeting

EBest Masterfs Thesis Award (Okayama University)

EDean Award of Graduation School of Natural Science and Technology, Okayama University

 

yOther activitiesz

EMaMaSELF Summer School (September 2014, Montpellier, France)

 

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