Incommensurate Spin-Density Wave in Two-Dimensional Hubbard Model

M.A. Timirgazin; Anatoly K. Arzhnikov; A.V. Vedyayev

doi:10.4028/www.scientific.net/SSP.190.67

Paper Titles

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On Chiral Model of Graphene
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Transitions in There-Dimensional Magnets with Extra Broken Symmetry
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Incommensurate Spin-Density Wave in Two-Dimensional Hubbard Model
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Spin Waves in Multilayers with Different Magnitudes of the Magnetization, Exchange, and Anisotropy
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New Magnetoresistance Results in GdB₆
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Exchange Bias Induced in Polycrystalline Co/FeMn-Structures by Magnetic Field Cooling
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Low-Doped La_0.54Ho_0.11Sr_0.35Mn_1-XV_xO₃Manganites: Vanadium Influence on Transport Phenomena and Magnetic Properties
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Incommensurate Spin-Density Wave in Two-Dimensional Hubbard Model

Abstract:

We consider the magnetic phase diagram of the two-dimensional Hubbard model ona square lattice.We take into account both spiral and collinear incommensurate magnetic states.The possibility of phase separation of spiral magnetic phases is taken into consideration as well.Our study shows that all the listed phases appear to be the ground state at certain parametersof the model. Relation of the obtained results to real materials, e.g. Cu-based high-temperaturesuperconductors, is discussed.