Rights statement: © 2009 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Phase diagram of the low-density two-dimensional homogeneous electron gas
AU - Drummond, Neil
AU - Needs, R. J.
N1 - © 2009 The American Physical Society
PY - 2009/3/24
Y1 - 2009/3/24
N2 - 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)].
AB - 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)].
UR - http://www.scopus.com/inward/record.url?scp=63649158176&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.102.126402
DO - 10.1103/PhysRevLett.102.126402
M3 - Journal article
AN - SCOPUS:63649158176
VL - 102
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 12
M1 - 126402
ER -