Quasiparticle-phonon downconversion in nonequilibrium superconductors

Quasiparticle-phonon downconversion in nonequilibrium superconductors
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非平衡超导体中的准粒子声子下转换

DOI:
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发表时间:
2000
期刊:
影响因子:
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通讯作者:
R. Hartog
R. Hartog
中科院分区:
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文献类型:
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作者:
A. Kozorezov;A. Volkov;J. Wigmore;A. Peacock;A. Poelaert;R. Hartog

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重要的准粒子的生产和分裂成两个阶段。第一个是控制的声子分布的演变,而第二个是占主导地位的准粒子下转换。两相的相对持续时间以及准粒子产生的速率取决于材料参数,大多数常见的超导体可以分为三种不同的类型。对于用于X射线探测的典型超导体,与隧穿机制中的各种时间尺度相比,下转换级联被示出为快速的。
important for the production of quasiparticles and is shown to split into two phases. The first is controlled by the evolution of the phonon distribution while the second is dominated by quasiparticle downconversion. The relative durations of the two phases and hence the rates of quasiparticle generation depend on material parameters, and most common superconductors could be classified into three different groups. For typical superconductors used for x-ray detection the downconversion cascade was shown to be fast compared to various time scales in the tunneling regime.