Local Spin Susceptibility Characteristic of Zero-Gap State of α-(BEDT-TTF)2I3 under Pressure
Local Spin Susceptibility Characteristic of Zero-Gap State of α-(BEDT-TTF)2I3 under Pressure
复制标题
α-(BEDT-TTF)2I3 压力下零间隙态局域自旋敏感性特征
DOI:
10.1143/jpsj.79.104704
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发表时间:
2010
影响因子:
1.7
通讯作者:
Toshihiro Takahashi
中科院分区:
文献类型:
--
作者:
Y. Takano;K. Hiraki;Y. Takada;H. Yamamoto;Toshihiro Takahashi
We performed 13 C-NMR measurements in the metallic state of α-(BEDT-TTF) 2 I 3 under pressure to determine the local spin susceptibility at each BEDT-TTF molecular site. We found that the local susceptibility becomes quite different from molecule to molecule in a unit cell with approach to the zero-gap state (ZGS) under pressure. This is related to the charge disproportionation among molecular sites [named A (A'), B, and C]. We confirmed that the most/least positively charged site, the B/C molecule, carries the smallest/largest local susceptibility. We also confirmed the linear temperature dependence of the local susceptibility at low temperatures. These results are consistent with the theoretical calculation [Eur. Phys. J. B 67 (2009) 139] and should be considered as the characteristics of the ZGS.
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DOI:
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发表时间:
2015
期刊:
影响因子:
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作者:
Dong Liu;Kazuya Miyagawa;Masafumi Tamura;Kazushi Kanoda
通讯作者:
Kazushi Kanoda
DOI:
--
发表时间:
2004
期刊:
J.Phys.IV France (proceedings of ISCOM 2003) 114
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作者:
S.Moroto;K.-I.Hiraki;Y.Takano;Y.Kubo;T.Takahashi;H.M.Yamamoto;T.Nakamura
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T.Nakamura
DOI:
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发表时间:
2006
期刊:
J. Phys. Soc. Jpn. 75
影响因子:
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作者:
S. Ishibashi;T. Tamura;M. Kohyama;K. Terakura
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K. Terakura
影响因子:
1.7
作者:
Kino, H;Miyazaki, T
通讯作者:
Miyazaki, T
DOI:
--
发表时间:
2006
期刊:
Journal of the Physical Society of Japan 75
影响因子:
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作者:
T.Mochida;T.Mochida;Shigeharu. Sugawara;Naoya Tajima
通讯作者:
Naoya Tajima