Vortex structure in the d-density-wave scenario

Article

关键词: QUASI-PARTICLE STATES;    ELECTRONIC-STRUCTURE;    MAGNETIC-FIELD;    SUPERCONDUCTING GAP;    PSEUDOGAP;    CORES;    LATTICE;    ORDER;   

DOI  :  10.1103/PhysRevB.68.024513

来源: SCIE

【 摘 要 】

We investigate the vortex structure assuming the d-density-wave scenario of the pseudogap. We discuss the profiles of the order parameters in the vicinity of the vortex, effective vortex charge, and the local density of states. We find a pronounced modification of these quantities when compared to a purely superconducting case. Results have been obtained for a clean system as well as in the presence of a nonmagnetic impurity. We show that the competition between superconductivity and the density wave may explain some experimental data recently obtained for high-temperature superconductors. In particular, we show that the d-density-wave scenario explains the asymmetry of the gap observed in the vicinity of the vortex core.

【 授权许可】

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