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Origins of Thermal Spin Depolarization in Half-Metallic Ferromagnet CrO_{2}.
Fujiwara, Hirokazu; Terashima, Kensei; Sunagawa, Masanori; Yano, Yuko; Nagayama, Takanobu; Fukura, Tetsushi; Yoshii, Fumiya; Matsuura, Yuka; Ogata, Makoto; Wakita, Takanori; Yaji, Koichiro; Harasawa, Ayumi; Kuroda, Kenta; Shin, Shik; Horiba, Koji; Kumigashira, Hiroshi; Muraoka, Yuji; Yokoya, Takayoshi.
Afiliación
  • Fujiwara H; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Terashima K; Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan.
  • Sunagawa M; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Yano Y; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Nagayama T; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Fukura T; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Yoshii F; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Matsuura Y; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Ogata M; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
  • Wakita T; Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan.
  • Yaji K; Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Harasawa A; Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Kuroda K; Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Shin S; Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
  • Horiba K; Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801, Japan.
  • Kumigashira H; Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba 305-0801, Japan.
  • Muraoka Y; Department of Physics, Tohoku University, Sendai, 980-8577, Japan.
  • Yokoya T; Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan.
Phys Rev Lett ; 121(25): 257201, 2018 Dec 21.
Article en En | MEDLINE | ID: mdl-30608774
ABSTRACT
Using high-resolution spin-resolved photoemission spectroscopy, we observe a thermal spin depolarization to which all spin-polarized electrons contribute. Furthermore, we observe a distinct minority spin state near the Fermi level and a corresponding depolarization that seldom contributes to demagnetization. The origin of this depolarization has been identified as the many-body effect characteristic of half-metallic ferromagnets. Our investigation opens an experimental field of itinerant ferromagnetic physics focusing on phenomena with sub-meV energy scale.
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Texto completo: 1 Bases de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Phys Rev Lett Año: 2018 Tipo del documento: Article País de afiliación: Japón
Texto completo
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Texto completo: 1 Bases de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Phys Rev Lett Año: 2018 Tipo del documento: Article País de afiliación: Japón