Spin instability of integer quantum Hall systems
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Department of Physics, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102 (Japan)
We investigate possible spin instabilities of integer quantum Hall systems as a function of the density within the framework of the self-consistent Hartree-Fock theory. We have found a spin density wave (SDW) state that is lower in energy than the paramagnetic and ferromagnetic states for the filling factor {nu}=2 in the density region 2.01<r{sub s}<2.15. The new SDW phase is the very one that has been expected by the softening of excitation spectra of the spin density excitation. We have examined the SDW phase in detail using the density matrix.
- OSTI ID:
- 21052726
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 15 Vol. 76; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnetic phase diagram of {nu}=2 quantum Hall systems
Charged spin-texture excitations and the Hartree-Fock approximation in the quantum Hall effect
Hartree-Fock theory of Skyrmions in quantum Hall ferromagnets
Journal Article
·
Sun Mar 15 00:00:00 EDT 2009
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:21192561
Charged spin-texture excitations and the Hartree-Fock approximation in the quantum Hall effect
Journal Article
·
Sat Oct 15 00:00:00 EDT 1994
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:7167394
Hartree-Fock theory of Skyrmions in quantum Hall ferromagnets
Journal Article
·
Mon Mar 31 23:00:00 EST 1997
· Physical Review, B: Condensed Matter
·
OSTI ID:560728