Phase diagram of the low-density two-dimensional homogeneous electron gas

Drummond, Neil and Needs, R. J. (2009) Phase diagram of the low-density two-dimensional homogeneous electron gas. Physical review letters, 102 (12). ISSN 1079-7114

[img]
Preview
PDF
e126402.pdf - Published Version

Download (136kB)

Abstract

We use quantum Monte Carlo methods to calculate the zero-temperature phase diagram of the two-dimensional homogeneous electron gas. We find a transition from a paramagnetic fluid to an antiferromagnetic triangular Wigner crystal at density parameter rs=31(1)  a.u. and a transition to a ferromagnetic crystal at rs=38(5)  a.u. The fully spin-polarized fluid is never stable. We search for, but do not find, the ferromagnetic “hybrid” phase proposed by H. Falakshahi and X. Waintal [ Phys. Rev. Lett. 94 046801 (2005)].

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
© 2009 The American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
55600
Deposited By:
Deposited On:
10 Jul 2012 08:11
Refereed?:
Yes
Published?:
Published
Last Modified:
08 Aug 2020 02:57