Development of a spin-polarized probe for nanoscale transport measurements and its application to spin transport of surface Rashba systems
| Project/Area Number |
22656011
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Thin film/Surface and interfacial physical properties
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
HIRAHARA Toru 東京大学, 大学院・理学系研究科, 助教 (30451818)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
HASEGAWA Shuji 東京大学, 大学院・理学系研究科, 教授 (00228446)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,300,000)
|
|---|
| Keywords | 表面 / 物性実験 / 表面・界面 / スピンエレクトロニクス / 表面・界面物性 |
|---|
| Research Abstract |
In the present research, we have tried to extend our nanoscale transport measurement technique to spin transport. First, we developed a method to make a magnetic probe by coating CoFe on cabon nanotube (CNT) tips. Using these magnetic probes in our four-tip scanning tunneling microscope, we succeeded in detecting some spin signal, which is likely originated from the current-induced spin-polarization phenomenon in surface states of ultrathin bismuth films.
|
Report
(4 results)
Research Products
(82 results)
-
-
[Journal Article] Atomic and electronic structure of ultrathin Bi(111) films grown on Bi_2Te_3(111) substrates: Evidence for a strain-induced topological phase transition2012
Author(s)
T. Hirahara, N. Fukui, T. Shirasawa, M. Yamada, M. Aitani, H. Miyazaki, M. Matsunami, S. Kimura, T. Takahashi, S. Hasegawa, K. Kobayashi
-
Journal Title
Phys. Rev. Lett.
Volume: 109
Issue: 22
Pages: 227401-227401
DOI
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
[Journal Article] Enhanced spin relaxation in a quantum metal film by the Rashba-type surface2011
Author(s)
N.Miyata, H.Narita, M.Ogawa, A.Harasawa, R.Hobara, T.Hirahara, P.Moras, D.Topwal, C.Carbone, S.Hasegawa, I.Matsuda
-
Journal Title
Physical Review B
Volume: 83
Issue: 19
Pages: 195305-195305
DOI
Related Report
Peer Reviewed
-
-
[Journal Article] A topological metal at the surface of an ultrathin Bi1-xSbx alloy film2010
Author(s)
T. Uetake, T. Hirahara, Y. Ueda, N.Nagamura, 6. T .Hirahara, Y. Sakamoto, Y. Saisyu, H. Miyazaki, S. Kimura, T. Okuda, I. Matsuda, S. Murakami, and S. Hasegawa
-
Journal Title
Phys. Rev. B
Volume: 81
Issue: 16
Pages: 165422-165422
DOI
Related Report
Peer Reviewed
-
-
-
-
-
[Journal Article] Direct spectroscopic evidence of spin-dependent hybridization between Rashba-split surface states and quantum-well states2010
Author(s)
K.He, Y.Takeichi, M.Ogawa, T.Okuda, P.Moras, D.Topwal, A.Harasawa, T.Hirahara, C.Carbone, A.Kakizaki, I.
-
Journal Title
Physical Review Letters
Volume: 104
Related Report
Peer Reviewed
-
-
-
[Journal Article] Electron compound nature in a surface atomic layer of two-dimensional triangle lattice2010
Author(s)
I.Matsuda, K.Kubo, F.Nakamura, T.Hirahara, S.Yamazaki, W.H.Choi, H.W.Yeom, H.Narita, Y.Fukaya, M.Hashimoto, A.Kawasuso, S.Hasegawa, K.Kobayashi
-
Journal Title
Physical Review B
Volume: 82
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Ultrathin Films of Topological Insulators2011
Author(s)
T. Hirahara, Y. Sakamoto, M. Yamada, H. Miyazaki, Y. Takeichi, S. Kimura, I. Matsuda, A. Kakaizaki, S. Hasegawa
Organizer
The 13th International Conference on the Formation of Semiconductor Interfaces (ICFSI13)
Place of Presentation
Prague, Czech Republic
Year and Date
2011-07-04
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
