A damping of the de Haas–van Alphen oscillations in the superconducting state
A damping of the de Haas–van Alphen oscillations in the superconducting state
复制标题
超导态德哈斯-范阿尔芬振荡的阻尼
DOI：
--
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
B L Gy rffy
中科院分区：
文献类型：
--
作者：
K P Duncan;B L Gy rffy
利用最近发展的准粒子超导态的半经典理论，我们研究了德哈斯-范阿尔芬效应。我们发现振荡的频率与正常状态下相同，但其幅度减小了。我们找到了这种阻尼的解析公式，这种阻尼是由半经典准粒子轨道之间的隧道作用引起的，其中包括粒子和类空穴段。该理论的定量预测与现有的数据是一致的。
Deploying a recently developed semiclassical theory of quasiparticles in the superconducting state we study the de Haas–van Alphen effect. We find that the oscillations have the same frequency as in the normal state but their amplitude is reduced. We find an analytic formula for this damping which is due to tunnelling between semiclassical quasiparticle orbits comprising both particle-and hole-like segments. The quantitative predictions of the theory are consistent with the available data.