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Physical Review Letters
Volumn 75, Issue 13, 1995, Pages 2562-2565
Skyrme crystal in a two-dimensional electron gas
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Indexed keywords

EID: 0000353926     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.75.2562     Document Type: Article
Times cited : (211)
References (22)
  • 4
    • 84927498545 scopus 로고
    • (1991) , vol.43 , pp. 5944
  • 21
    • 84927485562 scopus 로고    scopus 로고
    • Since the z^ component of the total spin is a good quantum number, for an isolated Skyrmion 〈Sz〉 is an integer in the exact many-body ground state. The Hartree-Fock estimate is a continuous function of system parameters and applies unless kBT is smaller than energetic separation between single-Skyrmion states with adjacent values of 〈Sz〉. For typical systems we do not expect the discreteness of the allowed values for 〈Sz〉 to be observable above ∼1 K. In the Skyrme crystal Skyrmion-Skyrmion interactions will cause 〈Sz〉 to fluctuate on each site even at T=0.
  • 22
    • 84927504843 scopus 로고    scopus 로고
    • By comparing energies, we know that for gμBB=0.015e2/ℓ the Laughlin fluid states at ν=2/3 and ν=4/3 are lower in energy than the SLA Skyrme crystal. For ν=4/5 and ν=6/5, the SLA Skyrme crystal has lower energy than the Laughlin states. This, however, does not exclude the possibility of an unpolarized Laughlin liquid or a Skyrme liquid state at these filling factors.

* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.