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Titolo:
Incommensurability in the frustrated two-dimensional XY model
Autore:
Denniston, C; Tang, C;
Indirizzi:
Univ Oxford, Dept Theoret Phys, Oxford OX1 3NP, England Univ Oxford Oxford England OX1 3NP Theoret Phys, Oxford OX1 3NP, England NEC Res Inst, Princeton, NJ 08540 USA NEC Res Inst Princeton NJ USA 08540NEC Res Inst, Princeton, NJ 08540 USA
Titolo Testata:
PHYSICAL REVIEW B-CONDENSED MATTER
fascicolo: 5, volume: 60, anno: 1999,
pagine: 3163 - 3168
SICI:
0163-1829(19990801)60:5<3163:IITFTX>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
JOSEPHSON-JUNCTION ARRAY; PHASE-TRANSITIONS; MAGNETIC-FIELD; SYSTEMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Denniston, C Univ Oxford, Dept Theoret Phys, 1 Keble Rd, Oxford OX1 3NP, England Univ Oxford 1 Keble Rd Oxford England OX1 3NP 1 3NP, England
Citazione:
C. Denniston e C. Tang, "Incommensurability in the frustrated two-dimensional XY model", PHYS REV B, 60(5), 1999, pp. 3163-3168

Abstract

To examine the properties of the frustrated XY model at an incommensurate field we have examined a sequence of magnetic filling factors f which approach the irrational value of one minus the golden mean. At all f studied, the system undergoes a finite-temperature ordering transition involving the freezing out of Ising-Like domain walls. As one approaches incommensurability, the low-temperature phase of the system changes from the staircase states found by Halsey [Phys. Rev. B 31, 5728 (1984); J. Phys. C 18, 2437 (1985)] to a striped phase consisting of a superlattice of parallel shift (Pott's-like) domain walls. Our results suggest that the glassy effects previouslyreported for this model are an artifact of the boundary conditions and dynamics that were used. [S0163-1829(99)03426-8].

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Documento generato il 03/04/20 alle ore 09:44:05