Study of quantum phase transitions byangle resolved NMR under extreme conditions
Project/Area Number |
25287083
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Condensed matter physics II
|
Research Institution | The University of Tokyo |
Principal Investigator |
|
Co-Investigator(Renkei-kenkyūsha) |
NAKATSUJI Satoru 東京大学, 物性研究所, 教授 (70362431)
KITAGAWA Kentaro 東京大学, 理学系研究科, 講師 (90567661)
HIROI Zenji 東京大学, 物性研究所, 教授 (30192719)
UWATOKO Yoshiya 東京大学, 物性研究所, 教授 (40213524)
YOSHIDA Makoto 東京大学, 物性研究所, 助教 (40379475)
|
Project Period (FY) |
2013-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2016: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
|
Keywords | 核磁気共鳴 / 量子相転移 / 極限環境 / 量子スピン系 / 重い電子系 / 極限条件 |
Outline of Final Research Achievements |
In this study, we aimed at microscopic understanding of novel quantum phenomena caused by strong electronic correlation in transition-metal or rare-earth compounds, when they are placed in extreme environments such as strong magnetic field, high pressure, or very low temperatures, by using nuclear magnetic resonance technique. Regarding low dimensional spin systems with frustration, we succeeded in observing magnetization plateaus, quantization of magnetization in strong magnetic fields, and spin-nematic correlation caused by bound pairs of magnetic excitations. Concerning Pr compounds with non-magnetic doublet crystalline field ground state, we obtained microscopic direct evidence for symmetry breaking due to quarupole order and quantum phase transition between different order parameters induced by very small magnetic fields.
|
Report
(6 results)
Research Products
(63 results)
-
-
-
-
-
-
-
-
[Journal Article] Pressure-Tuned Exchange Coupling of a Quantum Spin Liquid in the Molecular Triangular Lattice κ-(ET)2Ag2(CN)32016
Author(s)
Y. Shimizu, T. Hiramatsu, M. Maesato, A. Otsuka, H. Yamochi, A. Ono, M. Itoh, M. Yoshida, M. Takigawa, Y. Yoshida, G. Saito
-
Journal Title
Phys. Rev. Lett.
Volume: 117
Issue: 10
DOI
Related Report
Peer Reviewed
-
-
-
-
[Journal Article] Site-selective 11B NMR studies on YbAlB42016
Author(s)
S Takano, M S Grbic, K Kimura, M Yoshida, M Takigawa, E C T O'Farrell, K Kuga, S Nakatsuji, H Harima
-
Journal Title
Journal of Physics: Conference Series
Volume: 683
Pages: 012008-012008
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
[Journal Article] One-Third Magnetization Plateau with a Preceding Novel Phase in Volborthite2015
Author(s)
Hajime Ishikawa, Makoto Yoshida, Kazuhiro Nawa, Minki Jeong, Steffen Kramer, Mladen Horvatic, Claude Berthier, Masashi Takigawa, Mitsuru Akaki, Atsushi Miyake, Masashi Tokunaga, Koichi Kindo, Junichi Yamaura, Yoshihiko Okamoto, Zenji Hiroi
-
Journal Title
Physical Review Letters
Volume: 114
Issue: 22
Pages: 2272021-5
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
-
-
[Journal Article] Field-induced incommensurate phase in the strong-rung spin ladder with ferromagnetic legs2014
Author(s)
H. Yamaguchi, H. Miyagai, M. Yoshida, M. Takigawa, K. Iwase, T. Ono, N. Kase, K. Araki, S. Kittaka, T. Sakakibara, T. Shimokawa, T. Okubo, K. Okunishi, A. Matsuo, and Y. Hosokoshi
-
Journal Title
Phys. Rev. B
Volume: 89
Issue: 22
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] CeCoIn5における超低温下NMR測定2016
Author(s)
田代光揮, 山田章悟, 下澤雅明, 杉井かおり, 山下穣, 谷口貴紀, 武田晃, 瀧川仁, 宍戸寛明
Organizer
日本物理学会2016年秋季大会
Place of Presentation
金沢大学(石川県金沢市)
Year and Date
2016-09-13
Related Report
-
-
-
-
-
-
-
-
[Presentation] 異方的三角格子κ-(ET)2B(CN)4における量子臨界性2015
Author(s)
清水康弘, 小野聡大, 伊藤正行, 吉田誠A, 瀧川仁A, 大塚晃弘B, 矢持秀起B, 平松孝章C, 吉田幸大C, 齋藤軍治C, D
Organizer
2015日本物理学会秋季大会
Place of Presentation
関西大学千里山キャンパス(大阪府吹田市)
Year and Date
2015-09-16
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-