Resolving spin-helical textures of newly developed topological insulator materials
Project/Area Number |
23340105
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Hiroshima University |
Principal Investigator |
KIMURA AKIO 広島大学, 理学(系)研究科(研究院), 准教授 (00272534)
|
Co-Investigator(Kenkyū-buntansha) |
OKUDA Taichi 広島大学, 放射光科学研究センター, 准教授 (80313120)
MIYAMOTO Kouji 広島大学, 放射光科学研究センター, 助教 (50508067)
NAKATAKE Masashi 広島大学, 放射光科学研究センター, 助教 (60342599)
UEDA Yoshifumi 呉工業高等専門学校, 電気情報工学科, 教授 (10127615)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2013: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2011: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
|
Keywords | トポロジカル絶縁体 / トポロジカル表面状態 / スピンヘリカルテクスチャー / スピン分解光電子分光 / キャリア制御 / ヘリカルスピンテクスチャ ー / スピン角度分解光電子分光 / ヘリカルスピンテクスチャー / SR-ARPES / 3元カルコゲナイド |
Research Abstract |
Topological insulators are characterized by a spin-helical metallic surface state, while it is insulating in the bulk. This fascinating property enables a dissipationless carrier transport at the surface. The aim of this work was to newly develop more ideal topological insulator materials and resolve their spin-helical textures. We have confirmed that several ternary chalcogenide materials possess topologically non-trivial states and their spin-helical textures have been successfully figured out by using the spin- and angle- resolved photoelectron spectroscopy and the low-temperature scanning tunneling microscopy.
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Report
(4 results)
Research Products
(224 results)
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[Journal Article] X-ray magnetic circular dichroism for Co_xFe_<4-x>N (x = 0, 3, 4) films grown by molecular beam epitaxy2014
Author(s)
K. Ito, T. Sanai, Y. Yasutomi, S. Zhu, K. Toko, Y. Takeda, Y. Saitoh, A. Kimura, T. Suemasu
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Journal Title
J. Appl. Phys.
Volume: vol.115
Related Report
Peer Reviewed
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[Journal Article] Experimental verification of the surface termination in the topological insulator TlBiSe 2 using core-level photoelectron spectroscopy and scanning tunneling microscopy2013
Author(s)
K. Kuroda, M. Ye, E. F. Schwier, M. Nurmamat, K. Shirai, M. Nakatake, S. Ueda, K. Miyamoto, T. Okuda, H. Namatame, M. Taniguchi, Y. Ueda, A. Kimura
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Journal Title
Phys. Rev. B
Volume: vol.88
Related Report
Peer Reviewed
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[Journal Article] Electronic structures and magnetic moments of Co_3 FeN thin films grown by molecular beam epitaxy2013
Author(s)
K. Ito, T. Sanai, S. Zhu, Y. Yasutomi, K. Toko, S. Ueda, Y. Takeda, Y. Saitoh, Y. Imai, A. Kimura, T. Suemasu
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Journal Title
Appl. Phys. Lett.
Volume: vol.103
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Peer Reviewed
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[Journal Article] Experimental Evidence of Hidden Topological Surface States in PbBi_4Te_72013
Author(s)
T. Okuda, T. Maegawa, M. Ye, K. Shirai, T. Warashina, K. Miyamaoto, K. Kuroda, M. Arita, Z. S. Aliev, I. R. Amiraslanov, M. B. Babanly, E. V. Chulkov, S. V. Eremeev, A. Kimura, H. Namatame, M. Taniguchi
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Journal Title
Phys. Rev. Lett.
Volume: vol.111
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Peer Reviewed
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[Journal Article] Unoccupied topological surface state in Bi_2Te_2Se2013
Author(s)
M. Nurmamat, E. E. Krasovskii, K. Kuroda, M. Ye, K. Miyamoto, M. Nakatake, T. Okuda, H. Namatame, H. Namatame, M. Taniguchi, E. V. Chulkov, K. A. Kokh, O. E. Tereshchenko, A. Kimura
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Journal Title
Phys. Rev. B
Volume: vol.88
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Peer Reviewed
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[Journal Article] Tuning of magnetic and transport properties in Bi_2Te_3 by divalent Fe doping2013
Author(s)
N. H. Jo, K. J. Lee, C. M. Kim, K. Okamoto, A. Kimura, K. Miyamoto, T. Okuda, Y. K. Kim, Z. Lee, T. Onimaru, T. Takabatake, M. H. Jung
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Journal Title
Phys. Rev. B
Volume: vol.87
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Peer Reviewed
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[Journal Article] Perpendicular magnetic anisotropy with enhanced orbital moments of Fe adatoms on a topological surface of Bi_2Se_32013
Author(s)
M. Ye, K. Kuroda, Y. Takeda, Y. Saitoh, K. Okamoto, S. Y. Zhu, K. Shirai, K. Miyamoto, M. Arita, M. Nakatake, T. Okuda, Y. Ueda, K. Shimada, H. Namatame, M. Taniguchi, A. Kimura
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Journal Title
J. Phys. : Condens. Matter
Volume: vol.25
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Peer Reviewed
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[Journal Article] Experimental verification of the surface termination in the topological insulator T1BiSe_2 using core-level photoelectron spectroscopy and scanning tunneling microscopy2013
Author(s)
Kenta Kuroda, Mao Ye, Eike F. Schwier, Munisa Nurmamat, Kaito Shirai, Masashi Nakatake, Shigenori Ueda, Koji Miyamoto, Taichi Okuda, Hirofumi Namatame, Masaki Taniguc hi, Yoshifumi Ueda, and Akio Kimura
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Journal Title
Physical Review B
Volume: 88
Issue: 24
Pages: 245308-245315
DOI
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Peer Reviewed
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[Journal Article] Experimental Evidence of Hidden Topological Surface States in PbBi_4Te_72013
Author(s)
Taichi Okuda, Takamasa Maegawa, Mao Ye, Kaito Shirai, Takuya Waras hina, Koji Miyamoto, Kenta Kuroda, Masashi Arita, Ziya S. Aliev, Imam addin R. Amiraslanov, Mahammad B. Babanly, Evgueni V. Chulkov, Sergey V. Eremeev, Akio Kimura, Hirofumi Namatame, and Masaki Taniguchi
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Journal Title
Physical Review Letters
Volume: 111
Issue: 20
Pages: 206803-206808
DOI
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Peer Reviewed
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[Journal Article] Hard x-ray photoelectron spectroscopy study on valence band structure of semiconducting BaSi_2, J.2013
Author(s)
Masakazu Baba, Keita Ito, Weijie Du, Tatsunori Sanai, Kazuaki Okamoto, Kaoru Toko, Shigenori Ueda, Yoji Imai, Akio Kimura, and Takashi Suemasu
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Journal Title
Journal of Applied Physics
Volume: 114巻
Issue: 12
DOI
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Peer Reviewed
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[Journal Article] Unoccupied Topological Surface State in Bi2Te2Se2013
Author(s)
M. Nurmamat, E. E. Krasovskii, K. Kuroda, M. Ye, K. Miyamoto, M. Nakatake, T. Okuda, H. Namatame, M. Taniguchi, E.V. Chulkov, K.A. Koch, O.E. Tereshchenko, A. Kimura
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Journal Title
Phys. Rev. B
Volume: 88
Issue: 8
DOI
Related Report
Peer Reviewed
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[Journal Article] Tuning of magnetic and transport properties in Bi2Te3 by divalent Fe doping2013
Author(s)
N. H. Jo, K. J. Lee, C. M. Kim, K. Okamoto, A. Kimura, K. Miyamoto, T. Okuda, Y. K. Kim, Z. Lee, T. Onimaru, T. Takabatake, and M. H. Jung
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Journal Title
Phys. Rev. B
Volume: 87
Issue: 20
DOI
Related Report
Peer Reviewed
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[Journal Article] Perpendicular magnetic anisotropy with enhanced orbital moments of Fe adatoms on a topological surface of Bi2Se32013
Author(s)
Mao Ye, Kenta Kuroda, Yukiharu Takeda, Yuji Saitoh, Kazuaki Okamoto, Si-Yuan Zhu, Kaito Shirai, Koji Miyamoto, Masashi Arita, Masashi Nakatake, Taichi Okuda, Yoshifumi Ueda, Kenya Shimada, Hirofumi Namatame, Masaki Taniguchi and Akio Kimura
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Journal Title
J. Phys.: Condens. Matter
Volume: 25
Issue: 23
Pages: 232201-232201
DOI
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Peer Reviewed
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[Journal Article] Observation of a Highly Spin Polarized Topological Surface State in GeBi_2Te_42012
Author(s)
K. Okamoto, K. Kuroda, H. Miyahara, K. Miyamoto, T. Okuda, Z. S. Aliev, M. B. Babanly, I. R. Amiraslanov, K. Shimada, H. Namatame, M. Taniguchi, D. A. Samorokov, T. V. Menshchikova, E. V. Chulkov, A. Kimura
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Journal Title
Phys. Rev. B
Volume: vol.86
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Peer Reviewed
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[Journal Article] Topological Surface States with Persistent High Spin Polarization across the Dirac Point in Bi_2Te_2Se and Bi_2Se_2Te2012
Author(s)
K. Miyamoto, A. Kimura, T. Okuda, H. Miyahara, K. Kuroda, H. Namatame, M. Taniguchi, S. V. Eremeev, T. V. Menshchikova, E. V. Chulkov, K. A. Kokh, and O. E. Tereshchenko
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Journal Title
Phys. Rev. Lett.
Volume: vol.109
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Peer Reviewed
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[Journal Article] Negative spin polarization of Fe 4 N epitaxial films by spin-resolved photoelectron spectroscopy2012
Author(s)
K. Ito, K. Okamoto, K. Harada, T. Sanai, K. Toko, S. Ueda, Y. Imai, T. Okuda, K. Miyamoto, A. Kimura, and T. Suemasu
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Journal Title
J. Appl. Phys.
Volume: vol.112
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Peer Reviewed
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[Journal Article] Interface atomic structures and magnetic anisotropy of Fe and Pd/Fe monatomic films on Pd(001)2012
Author(s)
T. Ueno, M. Sawada, K. Furumoto, T. Tagashira, S. Tohoda, A. Kimura, S. Haraguchi, M. Tsujikawa, T. Oda, H. Namatame, M. Taniguchi
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Journal Title
Phys. Rev. B
Volume: vol.85
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Peer Reviewed
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[Journal Article] Quasiparticle interference on the surface of Bi_2Se_3 induced by cobalt adatom in the absence of ferromagnetic ordering2012
Author(s)
M. Ye, S. V. Eremeev, K. Kuroda, E. E. Krasovskii, E. V. Chulkov, Y. Takeda, Y. Saitoh, K. Okamoto, S. Y. Zhu, K. Miyamoto, M. Arita, M. Nakatake, T. Okuda, Y. Ueda, K. Shimada, H. Namatame, M. Taniguchi, A. Kimura
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Journal Title
Phys. Rev. B
Volume: vol.85
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Peer Reviewed
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[Journal Article] Experimental verification of PbBi_2Te_4 as a 3D topological insulator2012
Author(s)
K. Kuroda, H. Miyahara, M. Ye, S. V. Eremeev, Y. M. Koroteev, E. E. Krasovskii, E. V. Chulkov, S. Hiramoto, C. Moriyoshi, Y. Kuroiwa, K. Miyamoto, T. Okuda, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, Y. Ueda, and A. Kimura
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Journal Title
Phys. Rev. Lett.
Volume: vol.108
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Peer Reviewed
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[Journal Article] Topological surface states with persistent high-spin polarization across the Dirac point in Bi_2Te_2Se and Bi2_Se_2Te2012
Author(s)
K. Miyamoto, A. Kimura, T. Okuda, H. Miyahara, K. Kuroda, H. Namatame, M. Taniguchi, S. V. Eremeev, T. V. Menshchikova, E. V. Chulkov, K. A. Koch, and O. E. Tereschenko
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Journal Title
Phys. Rev. Lett
Volume: 109
Issue: 16
Pages: 166802-166802
DOI
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Peer Reviewed
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[Journal Article] Interface atomic structures and magnetic anisotropy of Fe and Pd/Fe monatomic films on Pd(001)2012
Author(s)
T. Ueno, M. Sawada, K. Furumoto, T. Tagashira, S. Tohoda, A. Kimura, S. Haraguchi, M. Tsujikawa, T. Oda, H. Namatame, M. Taniguchi
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Journal Title
Physical Review B
Volume: 85巻
Issue: 22
Pages: 1-5
DOI
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[Journal Article] Surface Scattering via Bulk Continuum States in the 3D Topological Insulator Bi_2Se_32011
Author(s)
S. Kim, M. Ye, K. Kuroda, Y. Yamada, E. E. Krasovskii, E.V. Chulkov, K. Miyamoto, M. Nakatake, T. Okuda, Y. Ueda, K. Shimada, H. Namatame, M. Taniguchi, A. Kimura
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Journal Title
Phys. Rev. Lett.
Volume: vol.107
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[Journal Article] Giant Rashba-type spin splitting in bulk BiTeI2011
Author(s)
K. Ishizaka, M. S. Bahramy, H. Murakawa, M. Sakano, T. Shimojima, T. Sonobe, K. Koizumi, S. Shin, H. Miyahara, A. Kimura, K. Miyamoto, T. Okuda, H. Namatame, M. Taniguchi, R. Arita, N. Nagaosa, K. Kobayashi, Y. Murakami, R. Kumai, Y. Kaneko, Y. Onose and Y. Tokura
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Journal Title
Nature Materials
Volume: vol.10
Pages: 521-526
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