Journal
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 244, Issue 1, Pages 474-479Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200672581
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A phase diagram for variable hole to electron mass ratio of two-component Coulomb crystals is presented as result of the first-principle computer simulations. A critical mass ratio for the existence of quantum Coulomb crystals is of the order of 80 in three dimensions. At very low temperature the electron-hole system with decreasing hole mass can form antiferromagnetic crystal structure composed by two perfect hole lattices each consisting of the holes with the same spin projections. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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