Quasiparticle density of states in high-Tc superconductors in the superconducting state

T. Hata; S. Onari; S. Honda; H. Itoh; Y. Tanaka; J. Inoue

doi:10.1016/j.physc.2007.05.019

Quasiparticle density of states in high-T_c superconductors in the superconducting state

T. Hata, S. Onari, S. Honda, H. Itoh, Y. Tanaka, J. Inoue

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

In order to clarify the tunneling spectroscopy in hole-doped high-T_c cuprates, we study the strongly correlated electron systems with surface using the 2D Hubbard model with fluctuation exchange (FLEX) approximation from the side of weak coupling theory. We have found that (i) LDOS near the (1, 1, 0) surface has a zero energy peak, and (ii) LDOS is asymmetric, reflecting the asymmetry of band structure and electron correlation in the hole-doped high-T_c cuprates.

Original language	English
Pages (from-to)	123-125
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	463-465
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.physc.2007.05.019
Publication status	Published - Oct 1 2007

Keywords

High-T cuprates
Superconductivity
Tunneling spectroscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2007.05.019

Cite this

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abstract = "In order to clarify the tunneling spectroscopy in hole-doped high-Tc cuprates, we study the strongly correlated electron systems with surface using the 2D Hubbard model with fluctuation exchange (FLEX) approximation from the side of weak coupling theory. We have found that (i) LDOS near the (1, 1, 0) surface has a zero energy peak, and (ii) LDOS is asymmetric, reflecting the asymmetry of band structure and electron correlation in the hole-doped high-Tc cuprates.",

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T1 - Quasiparticle density of states in high-Tc superconductors in the superconducting state

AU - Hata, T.

AU - Onari, S.

AU - Honda, S.

AU - Itoh, H.

AU - Tanaka, Y.

AU - Inoue, J.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - In order to clarify the tunneling spectroscopy in hole-doped high-Tc cuprates, we study the strongly correlated electron systems with surface using the 2D Hubbard model with fluctuation exchange (FLEX) approximation from the side of weak coupling theory. We have found that (i) LDOS near the (1, 1, 0) surface has a zero energy peak, and (ii) LDOS is asymmetric, reflecting the asymmetry of band structure and electron correlation in the hole-doped high-Tc cuprates.

AB - In order to clarify the tunneling spectroscopy in hole-doped high-Tc cuprates, we study the strongly correlated electron systems with surface using the 2D Hubbard model with fluctuation exchange (FLEX) approximation from the side of weak coupling theory. We have found that (i) LDOS near the (1, 1, 0) surface has a zero energy peak, and (ii) LDOS is asymmetric, reflecting the asymmetry of band structure and electron correlation in the hole-doped high-Tc cuprates.

KW - High-T cuprates

KW - Superconductivity

KW - Tunneling spectroscopy

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