2014 Fiscal Year Final Research Report
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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| Keywords | スピンネマチック相 / NMR / 一次元競合鎖 |
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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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| Free Research Field |
低温物性実験
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