Spin Liquid Studies by Pressure Control of Spin-Liquid-Insulating Phase
| Project/Area Number |
25400384
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Condensed matter physics II
|
|---|
| Research Institution | National Institute for Materials Science |
|---|
Principal Investigator |
UJI Shinya 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 副拠点長 (80344430)
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
|---|
| Keywords | スピン液体 / 磁気トルク / 磁化率 / 三角格子 / 有機磁性体 / 磁化 / スピン / 反強磁性 / 層状有機導体 |
|---|
| Outline of Final Research Achievements |
In order to investigate unique spin states in triangular lattices with spin S=1/2, we have measured magnetic properties in a wide temperaure and magnetic field region for k-type magnetic organic conductors. We measured the magnetic properties for k-(BDH-TTP)2FeX4 (X = Br, Cl) and developed an analysis technique of the magnetic torque data. We also performed SQUID and torque measurements for k-H-3(Cat-EDT-TTF)2 in detail and clarified the spin-liquid ground state, showing a constant magnetic susceptibility at low temperatures down to 50mK. We observed that the susceptibility shows divengence behavior at low temperature magnetic fields for k-(BEDT-TTF)2Cu2(CN)3, which can be ascribed to quantum critical behavior. This salt is found to show metallic conductivity at 0.5 GPa, but we cound not see quantum oscillations at low temperatures and high magnetic fields.
|
Report
(4 results)
Research Products
(28 results)
-
-
-
[Journal Article] Vortex Dynamics and Diamagnetic Torque Signals in Two Dimensional Organic Superconductor λ-(BETS)2GaCl42015
Author(s)
S. Uji, K. Kodama, K. Sugii, T. Terashima, T. Yamaguchi, N. Kurita, S. Tsuchiya, T. Konoike, M. Kimata, A. Kobayashi, B. Zhou, and H. Kobayashi
-
Journal Title
J. Phys. Soc. Jpn.
Volume: 84
Issue: 10
Pages: 104709-104709
DOI
NAID
Related Report
Peer Reviewed / Acknowledgement Compliant
-
-
-
-
[Journal Article] Magnetic Torque Studies of πーd System κ-(BDH-TTP)2FeX4 (X = Br, Cl)2014
Author(s)
K. Sugii, K. Takai, S. Tsuchiya, S. Uji, T. Terashima, H. Akutsu, A. Wada, S. Ichikawa, J. Yamada, and T. Enoki
-
Journal Title
J. Phys. Soc. Jpn.
Volume: 83
Issue: 2
Pages: 023704-023704
DOI
NAID
Related Report
Peer Reviewed
-
-
-
[Journal Article] Orbital Effect on FFLO Phase and Energy Dissipation due to Vortex Dynamics in Magnetic-Field-Induced Superconductor λ-(BETS)_2FeCl_42013
Author(s)
S . Uji, K. Kodama, K.Sugii, T. Terashima, T. Yamaguchi, N. Kurita, S. Tsuchiya, M. Kimata, T. Konoike, A. Kobayashi, B. Zhou, H. Kobayashi
-
Journal Title
J. Phys. Soc. Jpn
Volume: 82
Issue: 3
Pages: 34715-34715
DOI
Related Report
Peer Reviewed
-
[Journal Article] Kosterlitz-Thouless-type transition in a charge ordered state of the layered organic conductorα-(BEDT-TTF)_2I_3, S. Uji2013
Author(s)
S. Uji, K. Kodama, K. Sugii, Y. Takahide, T. Terashima, N. Kurita, S. Tsuchiya, M. Kohno, M. Kimata, K. Yamamoto, and K. Yakushi
-
Journal Title
Phys. Rev. Lett.
Volume: 110
Issue: 19
Pages: 196602-196602
DOI
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
