Local magnetic moments in vortex cores and around nonmagnetic impurities in two-dimensional t-J model

Masao Ogata; Hiroki Tsuchiura; Yukio Tanaka; Satoshi Kashiwaya

doi:10.1016/S0921-4526(02)02376-1

Local magnetic moments in vortex cores and around nonmagnetic impurities in two-dimensional t-J model

Masao Ogata, Hiroki Tsuchiura, Yukio Tanaka, Satoshi Kashiwaya

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

Abstract

Local antiferromagnetic moments in the vortex cores of high-T_c superconductors are studied using the two-dimensional t-J model. It is found that the doping dependence is important and the local moments can appear only near half-filling. However, the absence of the large resonance peak in the local density of states reported in the scanning tunneling spectroscopy is due to the smallness of the core size in high-T_c superconductors. The similar phenomena around nonmagnetic impurities are compared with the vortex case.

Original language	English
Pages (from-to)	1453-1454
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
Issue number	II
DOIs	https://doi.org/10.1016/S0921-4526(02)02376-1
Publication status	Published - 2003 May
Externally published	Yes

Keywords

Antiferromagnetism
High-T superconductors
Impurity
Vortex

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(02)02376-1

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abstract = "Local antiferromagnetic moments in the vortex cores of high-Tc superconductors are studied using the two-dimensional t-J model. It is found that the doping dependence is important and the local moments can appear only near half-filling. However, the absence of the large resonance peak in the local density of states reported in the scanning tunneling spectroscopy is due to the smallness of the core size in high-Tc superconductors. The similar phenomena around nonmagnetic impurities are compared with the vortex case.",

keywords = "Antiferromagnetism, High-T superconductors, Impurity, Vortex",

author = "Masao Ogata and Hiroki Tsuchiura and Yukio Tanaka and Satoshi Kashiwaya",

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AU - Ogata, Masao

AU - Tsuchiura, Hiroki

AU - Tanaka, Yukio

AU - Kashiwaya, Satoshi

PY - 2003/5

Y1 - 2003/5

N2 - Local antiferromagnetic moments in the vortex cores of high-Tc superconductors are studied using the two-dimensional t-J model. It is found that the doping dependence is important and the local moments can appear only near half-filling. However, the absence of the large resonance peak in the local density of states reported in the scanning tunneling spectroscopy is due to the smallness of the core size in high-Tc superconductors. The similar phenomena around nonmagnetic impurities are compared with the vortex case.

AB - Local antiferromagnetic moments in the vortex cores of high-Tc superconductors are studied using the two-dimensional t-J model. It is found that the doping dependence is important and the local moments can appear only near half-filling. However, the absence of the large resonance peak in the local density of states reported in the scanning tunneling spectroscopy is due to the smallness of the core size in high-Tc superconductors. The similar phenomena around nonmagnetic impurities are compared with the vortex case.

KW - Antiferromagnetism

KW - High-T superconductors

KW - Impurity

KW - Vortex

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - II

ER -

Local magnetic moments in vortex cores and around nonmagnetic impurities in two-dimensional t-J model

Abstract

Keywords

ASJC Scopus subject areas

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