We present Monte Carlo simulation data about Holmium magnetic thin film structures. As well known, this rare earth shows, at transition temperature T-N, a helical order in the bulk phase. In contrast with the collinear ferromagnetic or antiferromagnetic thin films, recent experimental works have proven that the transition temperature T-N(n) (n being the film thickness) depends on n only by an empirical relation. In order to study the behavior of these film structures, we consider a Heisenberg model with easy-plane single ion anisotropy and seven coupling constant (J(0) in the plane and J(1)-J(6) between plane of the Ho hcp structure), obtained by experimental neutron measurements.

Monte Carlo simulations on thin rare earth films: preliminary data / F. Cinti; A. Cuccoli; A. Rettori. - In: PHYSICS PROCEDIA. - ISSN 1875-3892. - STAMPA. - 7:(2010), pp. 34-38. (Intervento presentato al convegno Computer Simulation Studies in Condensed Matter Physics XX, CSP-2007 tenutosi a Athens, GA, USA nel 2007) [10.1016/j.phpro.2010.09.042].

Monte Carlo simulations on thin rare earth films: preliminary data

CINTI, FABIO;CUCCOLI, ALESSANDRO;RETTORI, ANGELO
2010

Abstract

We present Monte Carlo simulation data about Holmium magnetic thin film structures. As well known, this rare earth shows, at transition temperature T-N, a helical order in the bulk phase. In contrast with the collinear ferromagnetic or antiferromagnetic thin films, recent experimental works have proven that the transition temperature T-N(n) (n being the film thickness) depends on n only by an empirical relation. In order to study the behavior of these film structures, we consider a Heisenberg model with easy-plane single ion anisotropy and seven coupling constant (J(0) in the plane and J(1)-J(6) between plane of the Ho hcp structure), obtained by experimental neutron measurements.
2010
COMPUTER SIMULATION STUDIES IN CONDENSED MATTER PHYSICS XX, CSP-2007: PROCEEDINGS OF THE 20TH WORKSHOP
Computer Simulation Studies in Condensed Matter Physics XX, CSP-2007
Athens, GA, USA
2007
F. Cinti; A. Cuccoli; A. Rettori
File in questo prodotto:
File Dimensione Formato  
ATHENSsdarticle.pdf

Accesso chiuso

Tipologia: Versione finale referata (Postprint, Accepted manuscript)
Licenza: Tutti i diritti riservati
Dimensione 333.46 kB
Formato Adobe PDF
333.46 kB Adobe PDF   Richiedi una copia

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/408673
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact