PbTe/SnTe异质结——研究自旋三重态超导性的候选平台
PbTe/SnTe heterostructures -- candidate platform for studying spin-triplet superconductivity
AI总结：
本研究针对PbTe/SnTe半导体异质结的自旋三重态超导潜力开展实验，通过软点接触谱与上临界场分析给出配对证据，验证了应变诱导拓扑超导的相关理论预测。
摘要：
本文探究了分子束外延生长的PbTe/SnTe半导体异质结中自旋三重态超导性的潜在可能。我们通过软点接触谱实验（同时使用自旋极化与非极化电子），以及对四探针电阻测量推导出的上临界场的详细分析，给出了自旋三重态配对的有力证据。实验数据可用p波电子配对的Anderson-Brinkman-Morel模型来描述。我们的结果证实了E.Tang和L.Fu（Nature Physics, 10, 964, 2014）关于应变诱导拓扑超导性的预测。
英文摘要：
This paper explores the potential for spin-triplet superconductivity in molecular beam epitaxy grown PbTe/SnTe semiconductor heterostructures. We present convincing evidence for spin-triplet pairing by soft point-contact spectroscopy experiments, using both spin-polarized and unpolarized electrons and additionally, by detailed analysis of the upper critical field, as inferred from the four probe resistance measurements. The experimental data are described in terms of the Anderson-Brinkman-Morel model of p-wave electron pairing. Our results confirm the predictions on strain-induced topological superconductivity by E.Tang and L. Fu (Nature Physics, 10, 964, 2014).
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