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Collective modes and quasiparticle interference on the local density of states of cuprate superconductors

Chen, C.-T. and Yeh, N.-C. (2003) Collective modes and quasiparticle interference on the local density of states of cuprate superconductors. Physical Review B, 68 (22). Art. No. 220505. ISSN 1098-0121. http://resolver.caltech.edu/CaltechAUTHORS:CHEprb03

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Abstract

The energy, momentum, and temperature dependence of the quasiparticle local density of states (LDOS) of a two-dimensional d(x2)-(y2)-wave superconductor with random disorder is investigated using the first-order T-matrix approximation. The results suggest that collective modes such as spin-charge-density waves are relevant low-energy excitations of the cuprates that contribute to the observed LDOS modulations in recent scanning tunneling microscopy studies of Bi2Sr2CaCu2Ox.


Item Type:Article
Additional Information:©2003 The American Physical Society. Received 24 July 2003; published 23 December 2003. We thank Professors Subir Sachdev, Doug Scalapino and C. S. Ting and Mr. Yuan-Yu Jau for useful discussions. This research was supported by NSF Grant #DMR-0103045. http://arxiv.org/abs/cond-mat/0307660
Subject Keywords:high-temperature superconductors, BI2SR2CACU2O8+DELTA, pseudogap, gap, spectroscopy, transitions, symmetry
Record Number:CaltechAUTHORS:CHEprb03
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:CHEprb03
Alternative URL:http://dx.doi.org/10.1103/PhysRevB.68.220505
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:881
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:01 Nov 2005
Last Modified:26 Dec 2012 08:41

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