Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing
Based on an effective Hamiltonian specified in the triangular lattice with possible px±ipy– or dx2–y2±idxy–wave pairing, which has close relevance to the newly discovered Na0.35CoO2·yH2O, the electronic structure of the vortex state is studied by solving the Bogoliubov–de Gennes equations. It is fou...
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American Physical Society. The Journal's web site is located at http://prl.aps.org
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Online Access: | https://doi.org/10.1103/PhysRevLett.92.027004 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=92&issue=2&spage=027004:1&epage=4&date=2004&atitle=Vortex+State+in+NaxCoO2·yH2O:+px±ipy–Wave+Versus+dx2–y2±idxy–Wave+Pairing http://hdl.handle.net/10722/42491 |
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ftunivhongkonghu:oai:hub.hku.hk:10722/42491 2023-05-15T16:55:46+02:00 Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing Han, Q Wang, QH Xia, T Wang, ZD 2004 206515 bytes 28672 bytes application/msword application/pdf https://doi.org/10.1103/PhysRevLett.92.027004 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=92&issue=2&spage=027004:1&epage=4&date=2004&atitle=Vortex+State+in+NaxCoO2·yH2O:+px±ipy–Wave+Versus+dx2–y2±idxy–Wave+Pairing http://hdl.handle.net/10722/42491 eng eng American Physical Society. The Journal's web site is located at http://prl.aps.org United States Physical Review Letters http://www.scopus.com/mlt/select.url?eid=2-s2.0-84862052809&selection=ref&src=s&origin=recordpage Physical Review Letters, 2004, v. 92 n. 2, p. 027004:1-4 doi:10.1103/PhysRevLett.92.027004 WOS:000188187100043 0031-9007 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=92&issue=2&spage=027004:1&epage=4&date=2004&atitle=Vortex+State+in+NaxCoO2·yH2O:+px±ipy–Wave+Versus+dx2–y2±idxy–Wave+Pairing eid_2-s2.0-84862052809 http://hdl.handle.net/10722/42491 This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. CC-BY-NC-ND Physics Article 2004 ftunivhongkonghu https://doi.org/10.1103/PhysRevLett.92.027004 2023-01-14T15:04:42Z Based on an effective Hamiltonian specified in the triangular lattice with possible px±ipy– or dx2–y2±idxy–wave pairing, which has close relevance to the newly discovered Na0.35CoO2·yH2O, the electronic structure of the vortex state is studied by solving the Bogoliubov–de Gennes equations. It is found that px±ipy wave is favored for the electron doping as the hopping integral t<0. The lowest-lying vortex bound states are found to have, respectively, zero and positive energies for px±ipy– and dx2–y2±idxy–wave superconductors, whose vortex structures exhibit the intriguing sixfold symmetry. In the presence of strong on-site repulsion, the antiferromagnetic order and local ferromagnetic moment are induced around the vortex cores for the former and the latter, respectively, both of which cause the splitting of the local density of states peaks due to the lifting of spin degeneracy. published_or_final_version Article in Journal/Newspaper IPY University of Hong Kong: HKU Scholars Hub Physical Review Letters 92 2 |
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University of Hong Kong: HKU Scholars Hub |
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ftunivhongkonghu |
language |
English |
topic |
Physics |
spellingShingle |
Physics Han, Q Wang, QH Xia, T Wang, ZD Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing |
topic_facet |
Physics |
description |
Based on an effective Hamiltonian specified in the triangular lattice with possible px±ipy– or dx2–y2±idxy–wave pairing, which has close relevance to the newly discovered Na0.35CoO2·yH2O, the electronic structure of the vortex state is studied by solving the Bogoliubov–de Gennes equations. It is found that px±ipy wave is favored for the electron doping as the hopping integral t<0. The lowest-lying vortex bound states are found to have, respectively, zero and positive energies for px±ipy– and dx2–y2±idxy–wave superconductors, whose vortex structures exhibit the intriguing sixfold symmetry. In the presence of strong on-site repulsion, the antiferromagnetic order and local ferromagnetic moment are induced around the vortex cores for the former and the latter, respectively, both of which cause the splitting of the local density of states peaks due to the lifting of spin degeneracy. published_or_final_version |
format |
Article in Journal/Newspaper |
author |
Han, Q Wang, QH Xia, T Wang, ZD |
author_facet |
Han, Q Wang, QH Xia, T Wang, ZD |
author_sort |
Han, Q |
title |
Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing |
title_short |
Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing |
title_full |
Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing |
title_fullStr |
Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing |
title_full_unstemmed |
Vortex State in NaxCoO2·yH2O: px±ipy–Wave Versus dx2–y2±idxy–Wave Pairing |
title_sort |
vortex state in naxcoo2·yh2o: px±ipy–wave versus dx2–y2±idxy–wave pairing |
publisher |
American Physical Society. The Journal's web site is located at http://prl.aps.org |
publishDate |
2004 |
url |
https://doi.org/10.1103/PhysRevLett.92.027004 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=92&issue=2&spage=027004:1&epage=4&date=2004&atitle=Vortex+State+in+NaxCoO2·yH2O:+px±ipy–Wave+Versus+dx2–y2±idxy–Wave+Pairing http://hdl.handle.net/10722/42491 |
genre |
IPY |
genre_facet |
IPY |
op_relation |
Physical Review Letters http://www.scopus.com/mlt/select.url?eid=2-s2.0-84862052809&selection=ref&src=s&origin=recordpage Physical Review Letters, 2004, v. 92 n. 2, p. 027004:1-4 doi:10.1103/PhysRevLett.92.027004 WOS:000188187100043 0031-9007 http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=92&issue=2&spage=027004:1&epage=4&date=2004&atitle=Vortex+State+in+NaxCoO2·yH2O:+px±ipy–Wave+Versus+dx2–y2±idxy–Wave+Pairing eid_2-s2.0-84862052809 http://hdl.handle.net/10722/42491 |
op_rights |
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1103/PhysRevLett.92.027004 |
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Physical Review Letters |
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92 |
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