Magnetic frustration in the three-band Anderson lattice model for high-temperature superconductors

Dieter Ihle; Marcus Kasner

doi:10.1103/PhysRevB.42.4760

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Magnetic frustration in the three-band Anderson lattice model for high-temperature superconductors

Dieter Ihle, Marcus Kasner

DOI 10.1103/PhysRevB.42.4760 · Physical Review B

T1

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Abstract

The three-band Anderson lattice model for the CuO2 planes in high-Tc superconductors is established. Treating this model by perturbation theory, the effective spin interactions are derived. The antiferromagnetic superexchange integrals are calculated as functions of the direct oxygen transfer and the hole concentration. It is found that frustration in the superexchange occurs, even in the undoped case, which increases with oxygen trnasfer and decreases with hole concentration.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-x(Sr,Ba)xCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
La2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown