TY - JOUR
T1 - Possible p-Wave Superconductivity in Epitaxial Bi/Ni Bilayers
AU - Gong, Xin Xin
AU - Zhou, He Xin
AU - Xu, Peng Chao
AU - Yue, Di
AU - Zhu, Kai
AU - Jin, Xiao Feng
AU - Tian, He
AU - Zhao, Ge Jian
AU - Chen, Tingyong
N1 - Publisher Copyright:
© 2015 Chinese Physical Society and IOP Publishing Ltd.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - Superconductivity (SC) is one of the most intriguing physical phenomena in nature. Nucleation of SC has long been considered highly unfavorable if not impossible near ferromagnetism, in low dimensionality and, above all, out of non-superconductor. Here we report observation of SC with TC near 4K in Ni/Bi bilayers that defies all known paradigms of superconductivity, where neither ferromagnetic Ni film nor rhombohedra Bi film is superconducting in isolation. This highly unusual SC is independent of the growth order (Ni/Bi or Bi/Ni), but highly sensitive to the constituent layer thicknesses. Most importantly, the SC, distinctively non-s pairing, is triggered from, but does not occur at, the Bi/Ni interface. Using point contact Andreev reflection, we show evidences that the unique SC, naturally compatible with magnetism, is triplet p-wave pairing.
AB - Superconductivity (SC) is one of the most intriguing physical phenomena in nature. Nucleation of SC has long been considered highly unfavorable if not impossible near ferromagnetism, in low dimensionality and, above all, out of non-superconductor. Here we report observation of SC with TC near 4K in Ni/Bi bilayers that defies all known paradigms of superconductivity, where neither ferromagnetic Ni film nor rhombohedra Bi film is superconducting in isolation. This highly unusual SC is independent of the growth order (Ni/Bi or Bi/Ni), but highly sensitive to the constituent layer thicknesses. Most importantly, the SC, distinctively non-s pairing, is triggered from, but does not occur at, the Bi/Ni interface. Using point contact Andreev reflection, we show evidences that the unique SC, naturally compatible with magnetism, is triplet p-wave pairing.
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U2 - 10.1088/0256-307X/32/6/067402
DO - 10.1088/0256-307X/32/6/067402
M3 - Article
AN - SCOPUS:84938150494
SN - 0256-307X
VL - 32
JO - Chinese Physics Letters
JF - Chinese Physics Letters
IS - 6
M1 - 067402
ER -