Exotic vortex effect on the alternating order around impurities in two-dimensional antiferromagnets (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Exotic vortex effect on the alternating order around impurities in two-dimensional antiferromagnets (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1063/1.3056158 (literal)

Alternative label

• Cuccoli A. (1); Vaia R. (2); (2009)
  Exotic vortex effect on the alternating order around impurities in two-dimensional antiferromagnets
  in Journal of applied physics
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Cuccoli A. (1); Vaia R. (2); (literal)

Pagina inizio

• 07E104-1 (literal)

Pagina fine

• 07E104-3 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 105 (literal)

Rivista

• Journal of applied physics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note

• Proceedings of the 53rd Annual Conference on Magnetism amd Magnetic Materials / Spin Glasses, Low-Dimensional and Strongly Correlated Systems. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 3 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1) Dipartimento di Fisica, Università di Firenze e Unità CNISM, via G. Sansone 1, Sesto Fiorentino, I-50019 Firenze, Italy 2) Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, Sesto Fiorentino, I-50019 Firenze, Italy (literal)

Titolo

• Exotic vortex effect on the alternating order around impurities in two-dimensional antiferromagnets (literal)

Abstract

• It is well known that a magnetic field applied onto a Heisenberg antiferromagnet acts as an effective easy-plane anisotropy leading, in the case of two dimensions, to a Berezinskii–Kosterlitz–Thouless transition at a field-dependent temperature. If a nonmagnetic impurity is introduced in the lattice, an island of finite staggered magnetization develops, for which a recently proposed effective model predicts a universal shape that is almost independent of temperature and whose amplitude decays exponentially with the distance from the impurity. This picture was confirmed for the two-dimensional spin-½ case by quantum Monte Carlo simulations, whose outcomes, however, display also a counterintuitive effect: as the temperature approaches the critical value, the field-induced staggered magnetization surprisingly increases its range, which reaches a maximum before definitely dropping to zero in the disordered phase. In this paper an explanation of such a strange behavior is given as the result of vortex excitation. (literal)

Prodotto di

• Complessità - Magnetismo - Sistemi magnetici a bassa dimensionalità (MD.P04.001.001) (Modulo)
• Formazione spontanea di strutture e fenomeni di trasporto (MD.P02.004.001) (Modulo)

Autore CNR

• RUGGERO VAIA (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Exotic vortex effect on the alternating order around impurities in two-dimensional antiferromagnets" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• RUGGERO VAIA (Unità di personale interno)

Prodotto

• Complessità - Magnetismo - Sistemi magnetici a bassa dimensionalità (MD.P04.001.001) (Modulo)
• Formazione spontanea di strutture e fenomeni di trasporto (MD.P02.004.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of applied physics (Rivista)

Insieme di parole chiave di

• Keywords of "Exotic vortex effect on the alternating order around impurities in two-dimensional antiferromagnets" (Insieme di parole chiave)