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- W4320853821 abstract "The Hubbard model is studied in the external magnetic field. The analysis is carried out phenomenologically within the framework of the Ginzburg-Landau theory with the order parameter describing the opposite spin electrons. The study is performed for the nearly half-filled lower Hubbard band in the metallic state. The final equations are the Pauli-like ones for the opposite spins and nonlinear as a result of interaction between electrons with the opposite spins. The equations can analytically be solved for the spatially homogeneous distributions in a number of most interesting cases. In particular, the problem on the metal-insulator transition is analyzed for the nearly half-filled Hubbard sub-bands. The critical magnetic field at which the transition from the metallic state to the insulator one takes place is found under the paramagnetic spin effect." @default.
- W4320853821 created "2023-02-16" @default.
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- W4320853821 date "2023-02-12" @default.
- W4320853821 modified "2023-09-29" @default.
- W4320853821 title "Ginzburg-Landau approximation for the Hubbard model in the external magnetic field" @default.
- W4320853821 doi "https://doi.org/10.48550/arxiv.2302.05958" @default.
- W4320853821 hasPublicationYear "2023" @default.
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