Superconductor-Metal Quantum Transition at the EuO/KTaO_3 Interface
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Abstract
We report the experimental investigation of the superconductor-metal quantum phase transition of the EuO/KTaO_3 interface. Around the transition, a divergence of the dynamical critical exponent is observed, which supports the quantum Griffiths singularity in the EuO/KTaO_3 interface. The quantum Griffiths singularity could be attributed to large rare superconducting regions and quenched disorders at the interface. Our results could pave the way for studying the exotic superconducting properties at the EuO/KTaO_3 interface.
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Yang Ma, Jiasen Niu, Wenyu Xing, Yunyan Yao, Ranran Cai, Jirong Sun, X. C. Xie, Xi Lin, Wei Han. Superconductor-Metal Quantum Transition at the EuO/KTaO$_{3}$ Interface[J]. Chin. Phys. Lett., 2020, 37(11): 117401. DOI: 10.1088/0256-307X/37/11/117401
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Yang Ma, Jiasen Niu, Wenyu Xing, Yunyan Yao, Ranran Cai, Jirong Sun, X. C. Xie, Xi Lin, Wei Han. Superconductor-Metal Quantum Transition at the EuO/KTaO$_{3}$ Interface[J]. Chin. Phys. Lett., 2020, 37(11): 117401. DOI: 10.1088/0256-307X/37/11/117401
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Yang Ma, Jiasen Niu, Wenyu Xing, Yunyan Yao, Ranran Cai, Jirong Sun, X. C. Xie, Xi Lin, Wei Han. Superconductor-Metal Quantum Transition at the EuO/KTaO$_{3}$ Interface[J]. Chin. Phys. Lett., 2020, 37(11): 117401. DOI: 10.1088/0256-307X/37/11/117401
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Yang Ma, Jiasen Niu, Wenyu Xing, Yunyan Yao, Ranran Cai, Jirong Sun, X. C. Xie, Xi Lin, Wei Han. Superconductor-Metal Quantum Transition at the EuO/KTaO$_{3}$ Interface[J]. Chin. Phys. Lett., 2020, 37(11): 117401. DOI: 10.1088/0256-307X/37/11/117401
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