Staggered spin order of localized π-electrons in the insulating state of the organic conductor κ-(BETS)2Mn[N(CN)2]3
Staggered spin order of localized π-electrons in the insulating state of the organic conductor κ-(BETS)2Mn[N(CN)2]3
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有机导体κ-(BETS)2Mn[N(CN)2]3绝缘态局域π电子交错自旋序
DOI：
10.1134/s0021364012110100
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发表时间：
2012
期刊：
影响因子：
1.3
通讯作者：
E. Yagubskii
中科院分区：
文献类型：
--
作者：
O. Vyaselev;M. Kartsovnik;N. Kushch;E. Yagubskii
用~(13)C核磁共振研究了π-(κ)_2Mn[N(CN)_2]_3体系的导电性。在常压下，在T≃23K以下的电阻率测量中观察到的金属-绝缘体转变伴随着长程交错结构中π自旋的有序。当施加0.5kbar的∼小压力来抑制金属-绝缘体转变时，π-自旋系统将金属态的性质保持在5K以下。
The magnetic properties of the conduction π-electron system of κ-(BETS)2Mn[N(CN)2]3 have been probed using 13C NMR. At ambient pressure, the metal-insulator transition observed in the resistivity measurements below T ≃ 23 K is shown to be accompanied by ordering of the π-spins in a long-range staggered structure. As the metal-insulator transition is suppressed by applying a small pressure of ∼0.5 kbar, the π-spin system maintains the properties of the metallic state down to 5 K.