| DOI | Trouver le DOI : https://doi.org/10.1103/PhysRevLett.92.077202 |
|---|
| Auteur | Rechercher : van Duijn, J.; Rechercher : Gaulin, B. D.; Rechercher : Lumsden, M. A.; Rechercher : Castellan, J. P.; Rechercher : Buyers, W. J. L.1 |
|---|
| Affiliation | - Conseil national de recherches du Canada. Centre canadien de faisceaux de neutrons du CNRC
|
|---|
| Format | Texte, Article |
|---|
| Résumé | We have performed measurements of the critical neutron scattering on CsCo0.83Mg0.17Br3, a dilute stacked triangular lattice (STL) Ising antiferromagnet (AF). A two component line shape associated with the critical fluctuations appears at a temperature coincident with TN1 observed in pure CsCoBr3. Such scattering is indicative of fluctuations in prototypical random field Ising model (RFIM) systems. The random field domain state arises in this case due to geometrical frustration within the STL Ising AF, which gives rise to a three sublattice Néel state, in which one sublattice is disordered. Magnetic vacancies nucleate AF domains in which the vacancies reside on the disordered sublattice thereby generating a RFIM state in the absence of an applied magnetic field. |
|---|
| Date de publication | 2004-02-18 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Numéro NPARC | 12338219 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 9ccc2ba3-1819-452f-8ea4-fc117e907949 |
|---|
| Enregistrement créé | 2009-09-10 |
|---|
| Enregistrement modifié | 2020-04-17 |
|---|
