Time-Reversal Symmetry Breaking: an Evidence for Spin Pairing
in High-Tc Superconductors
GUO Wei, HAN Ru-Shan
Department of Physics, Peking University, Beijing 100871
Time-Reversal Symmetry Breaking: an Evidence for Spin Pairing
in High-Tc Superconductors
GUO Wei;HAN Ru-Shan
Department of Physics, Peking University, Beijing 100871
关键词 ：
74.20.-z ,
11.30.Er ,
71.10.L
Abstract ： Effective spin coupling leads to local triplet pairing in the antiferromagnetically ordered CuO2 plane as shown by the K-J model [Guo et al. Chin. Phys. Lett. 18 (2001) 103]. The precession of the spin triplet(S=1, Sz = 0) in the CuO2 plane does not hold time-reversal invariance due to the dimpled CuO structure, which not only modifies the gap function but also contributes to the asymmetry of the high-Tc tunneling conductance. In principle, the effect of time-reversal symmetry breaking can be manifested by the variation of the conductance asymmetry by applying a magnetic field at superconductor-insulator-normal metal junction, which should provide a direct evidence for triplet pairing in the high-Tc superconductors.
Key words ：
74.20.-z
11.30.Er
71.10.L
出版日期: 2001-04-01
:
74.20.-z
(Theories and models of superconducting state)
11.30.Er
(Charge conjugation, parity, time reversal, and other discrete symmetries)
71.10.L
引用本文:
GUO Wei;HAN Ru-Shan. Time-Reversal Symmetry Breaking: an Evidence for Spin Pairing
in High-Tc Superconductors[J]. 中国物理快报, 2001, 18(4): 582-583.
c Superconductors. Chin. Phys. Lett., 2001, 18(4): 582-583.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2001/V18/I4/582
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