Science. 1991 Apr 5;252(5002):96-8. doi: 10.1126/science.252.5002.96.
The concept of hidden Fermi surface nesting was introduced to explain the general observation that certain low-dimensional metals with several partially filled bands exhibit charge density wave (CDW) instabilities, although their individual Fermi surfaces do not reveal the observed nesting vectors. This concept was explored by considering the Fermi surfaces of the purple bronze AMo(6)O(17) (A = sodium or potassium) and then observing the CDW spatial fluctuations expected from its hidden nesting on the basis of diffuse x-ray scattering experiments. The concept of hidden Fermi surface nesting is essential for understanding the electronic instabilities of low-dimensional metals.
隐藏费米表面嵌套的概念被引入,以解释某些具有多个部分填充能带的低维金属尽管其个别费米表面不显示观察到的嵌套向量,但仍表现出电荷密度波 (CDW) 不稳定性的普遍观察结果。这一概念通过考虑紫青铜 AMo(6)O(17)(A = 钠或钾)的费米表面来探索,然后根据漫散射 X 射线散射实验观察其隐藏嵌套所预期的 CDW 空间波动。隐藏费米表面嵌套的概念对于理解低维金属的电子不稳定性至关重要。