Superexchange mechanism and d-wave superconductivity

B Kotliar; Jialin Liu

doi:10.1103/PhysRevB.38.5142

Superexchange mechanism and d-wave superconductivity

B Kotliar, Jialin Liu

School of Arts and Sciences, Physics & Astronomy

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

535 Scopus citations

Abstract

We have formulated an auxiliary-boson mean-field theory consistent with the SU(2) symmetry of the Heisenberg model. At half filling, we find an infinite number of solutions related by the symmetry. Away from half filling the kinetic energy, acting as a symmetry-breaking field, selects a superconducting state of d-wave symmetry. The mean-field theory describes bosons and fermions with finite kinetic energy close to half filling. We derive self-consistent equations for the superconducting transition temperature Tc. We find that Tc vanishes at large and small filling factors.

Original language	English (US)
Pages (from-to)	5142-5145
Number of pages	4
Journal	Physical Review B
Volume	38
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.38.5142
State	Published - Jan 1 1988

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

Access to Document

10.1103/PhysRevB.38.5142

Fingerprint Dive into the research topics of 'Superexchange mechanism and d-wave superconductivity'. Together they form a unique fingerprint.

Cite this

@article{0aa2d63452634282a5644ad8beb59dba,

title = "Superexchange mechanism and d-wave superconductivity",

abstract = "We have formulated an auxiliary-boson mean-field theory consistent with the SU(2) symmetry of the Heisenberg model. At half filling, we find an infinite number of solutions related by the symmetry. Away from half filling the kinetic energy, acting as a symmetry-breaking field, selects a superconducting state of d-wave symmetry. The mean-field theory describes bosons and fermions with finite kinetic energy close to half filling. We derive self-consistent equations for the superconducting transition temperature Tc. We find that Tc vanishes at large and small filling factors.",

author = "B Kotliar and Jialin Liu",

year = "1988",

month = jan,

day = "1",

doi = "10.1103/PhysRevB.38.5142",

language = "English (US)",

volume = "38",

pages = "5142--5145",

journal = "Physical Review B",

issn = "0163-1829",

number = "7",

}

TY - JOUR

T1 - Superexchange mechanism and d-wave superconductivity

AU - Kotliar, B

AU - Liu, Jialin

PY - 1988/1/1

Y1 - 1988/1/1

N2 - We have formulated an auxiliary-boson mean-field theory consistent with the SU(2) symmetry of the Heisenberg model. At half filling, we find an infinite number of solutions related by the symmetry. Away from half filling the kinetic energy, acting as a symmetry-breaking field, selects a superconducting state of d-wave symmetry. The mean-field theory describes bosons and fermions with finite kinetic energy close to half filling. We derive self-consistent equations for the superconducting transition temperature Tc. We find that Tc vanishes at large and small filling factors.

AB - We have formulated an auxiliary-boson mean-field theory consistent with the SU(2) symmetry of the Heisenberg model. At half filling, we find an infinite number of solutions related by the symmetry. Away from half filling the kinetic energy, acting as a symmetry-breaking field, selects a superconducting state of d-wave symmetry. The mean-field theory describes bosons and fermions with finite kinetic energy close to half filling. We derive self-consistent equations for the superconducting transition temperature Tc. We find that Tc vanishes at large and small filling factors.

UR - http://www.scopus.com/inward/record.url?scp=0001358225&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001358225&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.38.5142

DO - 10.1103/PhysRevB.38.5142

M3 - Article

AN - SCOPUS:0001358225

VL - 38

SP - 5142

EP - 5145

JO - Physical Review B

JF - Physical Review B

SN - 0163-1829

IS - 7

ER -