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Volumn 59, Issue 4, 1999, Pages R2471-R2473

Metal-insulator transition in the two-chain model of correlated fermions

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EID: 0000329557     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.R2471     Document Type: Article
Times cited : (30)

References (26)
  • 2
    • 0032536015 scopus 로고    scopus 로고
    • H. Mayaffre, et al., Science 279, 345 (1998).
    • (1998) Science , vol.279 , pp. 345
    • Mayaffre, H.1
  • 22
    • 85037897375 scopus 로고    scopus 로고
    • For large (Formula presented) the large-(Formula presented) Hubbard ladder maps onto a (Formula presented) ladder with (Formula presented) However, in that case (Formula presented) is also big. Then, at least for sufficiently large (Formula presented) a single rung would not necessarily be occupied by a singlet as in Fig. 11, but either be doubly occupied (singlet) or be occupied by a single electron, of spin up or down (doublet). This then is a spin-(Formula presented) Luttinger liquid (with (Formula presented) upon approaching the insulating state). In the present context, the large-(Formula presented) model is not meant as a physically particularly relevant model, but rather as a solvable case allowing (Formula presented) to be determined close to half-filling.
    • For large (Formula presented) the large-(Formula presented) Hubbard ladder maps onto a (Formula presented) ladder with (Formula presented) However, in that case (Formula presented) is also big. Then, at least for sufficiently large (Formula presented) a single rung would not necessarily be occupied by a singlet as in Fig. 11, but either be doubly occupied (singlet) or be occupied by a single electron, of spin up or down (doublet). This then is a spin-(Formula presented) Luttinger liquid (with (Formula presented) upon approaching the insulating state). In the present context, the large-(Formula presented) model is not meant as a physically particularly relevant model, but rather as a solvable case allowing (Formula presented) to be determined close to half-filling.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.