NMR and muSR study on the spin nematic phase in the competing spin chain
| Project/Area Number |
24540350
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Sophia University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Takao 芝浦工業大学, 工学部, 準教授 (40327862)
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| Co-Investigator(Renkei-kenkyūsha) |
HASE Masashi 独立行政法人物質, 材料研究機構, 主席研究員 (40281654)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | スピンネマチック相 / NMR / 一次元競合鎖 / スピンネマチック / フラストレーション / 量子スピン系 / 低次元量子スピン磁性体 / ＮＭＲ |
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| Outline of Final Research Achievements |
The high-field ground state of the competing-spin-chain compound Cs2Cu2Mo3O12 and Rb2Cu2Mo3O12 with the ferromagnetic nearest-neighbor J1 and the antiferromagnetic second-nearest-neighbor J2 were investigated by 133Cs or 85Rb-NMR.
In Cs system, a divergence of 1/T1 and a peak-splitting in spectra were observed at TN = 1.85 K, indicating the existence of a field-induced long range magnetic order. In the paramagnetic region above 4 K, 1/T1 showed a power-law temperature dependence T^(2K-1). The exponent K was strongly field-dependent, suggesting the possibility of the spin-nematic Tomonaga Luttinger Liquid state.
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Report
(4 results)
Research Products
(24 results)
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[Journal Article] Microscopic Phase Separation in Triangular-Lattice Quantum Spin Magnet κ-(BEDT-TTF)2Cu2(CN)3 Probed by Muon Spin Relaxation2012
Author(s)
Saori Nakajima, Takao Suzuki1,2, Yasuyuki Ishii1, Kazuki Ohishi1, Isao Watanabe1, Takayuki Goto, Akira Oosawa, Naoki Yoneyama4,5, Norio Kobayashi4, Francis L. Pratt3, and Takahiko Sasaki4,5
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Journal Title
J. Phys. Soc. Jpn. 81 (2012) 063706 (4 pages)
Volume: 81
Issue: 6
Pages: 063706-063706
DOI
NAID
Related Report
Peer Reviewed
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