SPIN-ORBIT INTERACTION IN GRAPHITE
SPIN-ORBIT INTERACTION IN GRAPHITE
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DOI：
10.1016/0008-6223(66)90056-x
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发表时间：
1966-01-01
期刊：
影响因子：
10.9
通讯作者：
MAVROIDES, JG
中科院分区：
文献类型：
--
作者：
DRESSELHAUS, GF;DRESSELHAUS, MS;MAVROIDES, JG
最近对磁反射和De Haas-van Alphen效应的测量使更准确地确定热解石墨的带参数成为可能。原则上，这些实验可以更直接地测量石墨中微小的自旋-轨道相互作用。这种相互作用提高了E3带的简并度，并在K点附近产生了带隙，这可以从磁反射实验的分析中得出。当H点的能带简并被解除时，得到了两个极端的费米表面积，从而预言了两个低频的De Haas-van Alphen振荡。
Recent measurements of the magnetoreflection and of the de Haas-van Alphen effect have made possible a more accurate determination of the band parameters of pyrolytic graphite. In principle, these experiments could provide a more direct measurement of the small spin-orbit interaction in graphite. This interaction lifts the degeneracy of the E3bands everywhere along the zone edge and gives rise to a band gap near point K which could be deduced from analysis of the magnetoreflection experiment. When the degeneracy of the energy bands at point H is lifted, two extremal Fermi surface areas are obtained, thus predicting two low frequency de Haas-van Alphen oscillations.