Magnetic breakdown at high fields: semiclassical and quantum treatments
Magnetic breakdown at high fields: semiclassical and quantum treatments
复制标题
高场磁击穿：半经典和量子治疗
DOI：
10.1103/physrevlett.85.1500
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发表时间：
2000
影响因子：
8.6
通讯作者：
Kim
中科院分区：
文献类型：
--
作者：
Han;Brooks;Kim
通过计算场依赖自由能，确定了有限温度和非相互作用自旋对准二维有机导体中磁击穿（MB）的影响.的de Haas-van Alphen振荡光谱，包括MB现象，从而获得微观。在计算的磁场范围内，从170到1400 T，我们发现显着的半经典和量子处理的预测之间的协议。我们还发现，塞曼效应导致分裂的频率对应的基本轨道。
The effects of finite temperature and noninteracting spins on magnetic breakdown (MB) in a quasi-two-dimensional organic conductor have been determined by computing the field-dependent free energy using a realistic crystal structure with no adjustable parameters. The de Haas-van Alphen oscillation spectra, including the MB phenomena, are thereby obtained microscopically. Within the range of computed magnetic field, from 170 to 1400 T, we find remarkable agreement between the predictions of the semiclassical and quantum treatment. We also find that the Zeeman effect leads to splitting of a frequency corresponding to the fundamental orbit.