Spin polaron approach to superconductivity

Барабанов, А. Ф.; Maksimov, L. A.; Mikheenkov, A. V.

doi:10.1134/1.1421409

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Model and Calculation Methods1

Repeated Dynamical Reduction Of the Dimensionality Of The Ps1

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Cited by 10 publications

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“…Spin-polaron excitations can be calculated in the framework of the Kondo-lattice model using the method proposed in [10]. The Hamiltonian has the form…”

Section: Model and Calculation Methodsmentioning

confidence: 99%

Anomalies in magnetoresistance and in the bulk modulus for ferromagnetics with four-spin exchange interaction on the Kondo lattice

Aplesnin¹,

Piskunova²

2006

J. Phys.: Condens. Matter

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The temperature dependence of resistivity and the bulk modulus are calculated on the Kondo lattice, with ring exchange between localized spins, using the spin-polaron and adiabatic approximation. Peak and zero values of the bulk modulus as functions of temperature and concentration are determined below the temperature of the transition to the paramagnetic state. The effects of the nearest order between transverse spin components and a value of the ring exchange between localized spins on magnetoresistivity are estimated.

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“…Spin-polaron excitations can be calculated in the framework of the Kondo-lattice model using the method proposed in [10]. The Hamiltonian has the form…”

Section: Model and Calculation Methodsmentioning

confidence: 99%

Anomalies in magnetoresistance and in the bulk modulus for ferromagnetics with four-spin exchange interaction on the Kondo lattice

Aplesnin¹,

Piskunova²

2006

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…has remained unclear. 119 Kudinov 120 first showed that it is possible in principle for the one-site Coulomb repulsion to be suppressed by a polaron energy shift E p upon the formation of a JT polaron-hole pair. The Kudinov model is easily generalized for the model of two-site JT polarons interacting with light charge carriers if, after a modified Lang-Firsov transformation, 61 one keeps in the Hamiltonian all of the renormalized interactions between charge carriers.…”

Section: Repeated Dynamical Reduction Of the Dimensionality Of The Psmentioning

confidence: 99%