Local density of states of quasiparticles near the surface of t– t′– t″– J model

We have studied the spatial dependence of the local density of states (LDOS) of quasiparticles near a (110) surface using the t– t′– t″– J model based on the Gutzwiller approximation. By choosing the proper material parameters, hole concentration dependence of LDOS is obtained. The splitting of zero...

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Bibliographic Details
Published inPhysica. C, Superconductivity Vol. 317; pp. 521 - 523
Main Authors Tanuma, Y., Tanaka, Y., Ogata, M., Kashiwaya, S.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.1999
Subjects
Local density
Quasiparticle states
t– t′– t″– J model
Local density
t– t′– t″– J model
Quasiparticle states
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Summary:We have studied the spatial dependence of the local density of states (LDOS) of quasiparticles near a (110) surface using the t– t′– t″– J model based on the Gutzwiller approximation. By choosing the proper material parameters, hole concentration dependence of LDOS is obtained. The splitting of zero-energy peak of LDOS near the surface due to the broken time reversal symmetry state is obtained with increasing doping concentration.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(99)00115-X