Giant angular-dependent Nernst effect in the quasi-one-dimensional organic conductor (TMTSF)2PF6
Giant angular-dependent Nernst effect in the quasi-one-dimensional organic conductor (TMTSF)2PF6
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准一维有机导体 (TMTSF)2PF6 中巨大的角度相关能斯特效应
DOI：
10.1103/physrevb.72.235116
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发表时间：
2005
影响因子：
3.7
通讯作者：
P. Chaikin
中科院分区：
文献类型：
--
作者：
Weida Wu;N. Ong;P. Chaikin
我们提出了一个详细的研究能斯特效应Szx在TMTSF 2PF 6作为温度，磁场大小，方向和压力的函数。如前所述，当磁场通过晶体学方向旋转时，存在大的共振状结构，即Lebed魔角。这些能斯特效应共振强烈表明，系统的传输是有效的“相干”，只有在晶体平面沿着或接近所施加的电场方向。我们还提出了分析和数值计算的电导率和热电张量TMTSF 2PF 6，半经典近似的玻尔兹曼输运模型的基础上。玻尔兹曼输运计算不能描述实验数据。我们认为，答案可能在于强关联链的场诱导解耦。
We present a detailed study of the Nernst effect Szx in TMTSF2PF6 as a function of temperature, magnetic field magnitude, direction, and pressure. As previously reported there is a large resonantlike structure as the magnetic field is rotated through crystallographic directions, the Lebed magic angles. These Nernst effect resonances strongly suggest that the transport of the system is effectively “coherent” only in crystallographic planes along or close to the applied field direction. We also present analytical and numerical calculations of the conductivity and thermoelectric tensors for TMTSF2PF6, based on a Boltzmann transport model within the semiclassical approximation. The Boltzmann transport calculation fails to describe the experimental data. We suggest that the answer may lie in the field induced decoupling of the strongly correlated chains.
影响因子：
56.9
作者：
Wang, YY;Ono, S;Ong, NP
通讯作者：
Ong, NP