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Coulomb crystal and quantum melting in electron–hole plasmas of semiconductors under high pressure
Author(s) -
Filinov Vladimir,
Bonitz Michael,
Fortov Vladimir,
Fehske Holger,
Levashov Pavel
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200672581
Subject(s) - coulomb , condensed matter physics , antiferromagnetism , phase diagram , electron , physics , crystal (programming language) , effective mass (spring–mass system) , electron hole , semiconductor , spin (aerodynamics) , phase (matter) , quantum mechanics , thermodynamics , computer science , programming language
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. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)