Effective spin Hamiltonian for high-temperature superconductors

Raymond Chan; Miklós Gulácsi

doi:10.1023/A:1026485821165

Effective spin Hamiltonian for high-temperature superconductors

Raymond Chan^*, Miklós Gulácsi

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

An effective spin Hamiltonian for the two-band Hubbard model of the high-T_c materials is derived by a canonical transformation that was calculated and summed up to infinite order. The spin interaction is obtained to be of Kondo type rather than t-J. We also discuss briefly the impact of the obtained result on understanding the spin gap.

Original language	English
Pages (from-to)	917-919
Number of pages	3
Journal	Journal of Superconductivity and Novel Magnetism
Volume	13
Issue number	6
DOIs	https://doi.org/10.1023/A:1026485821165
Publication status	Published - 2000

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title = "Effective spin Hamiltonian for high-temperature superconductors",

abstract = "An effective spin Hamiltonian for the two-band Hubbard model of the high-Tc materials is derived by a canonical transformation that was calculated and summed up to infinite order. The spin interaction is obtained to be of Kondo type rather than t-J. We also discuss briefly the impact of the obtained result on understanding the spin gap.",

keywords = "Canonical transformation, Effective spin interaction, Impurity effects, Kondo lattice model, Pseudo gap, Spin gap",

author = "Raymond Chan and Mikl{\'o}s Gul{\'a}csi",

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T1 - Effective spin Hamiltonian for high-temperature superconductors

AU - Chan, Raymond

AU - Gulácsi, Miklós

PY - 2000

Y1 - 2000

N2 - An effective spin Hamiltonian for the two-band Hubbard model of the high-Tc materials is derived by a canonical transformation that was calculated and summed up to infinite order. The spin interaction is obtained to be of Kondo type rather than t-J. We also discuss briefly the impact of the obtained result on understanding the spin gap.

AB - An effective spin Hamiltonian for the two-band Hubbard model of the high-Tc materials is derived by a canonical transformation that was calculated and summed up to infinite order. The spin interaction is obtained to be of Kondo type rather than t-J. We also discuss briefly the impact of the obtained result on understanding the spin gap.

KW - Canonical transformation

KW - Effective spin interaction

KW - Impurity effects

KW - Kondo lattice model

KW - Pseudo gap

KW - Spin gap

UR - http://www.scopus.com/inward/record.url?scp=17744396284&partnerID=8YFLogxK

U2 - 10.1023/A:1026485821165

DO - 10.1023/A:1026485821165

M3 - Article

SN - 1557-1939

VL - 13

SP - 917

EP - 919

JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

IS - 6

ER -

Effective spin Hamiltonian for high-temperature superconductors

Abstract

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