Large phase fluctuations near TI and phase pinning in incommensurate ThBr4 : Gd3+ through E.S.R. measurements - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal de Physique Lettres Année : 1984

Large phase fluctuations near TI and phase pinning in incommensurate ThBr4 : Gd3+ through E.S.R. measurements

J. Emery
J.C. Fayet
  • Fonction : Auteur

Résumé

Recently, the coexistence of « normal-like » and incommensurate 87 Rb N.M.R. lines have been observed in Rb2ZnBr4 below TI, and has been interpreted in terms of a standing wave regime of phase fluctuations between pinning defects. We analyse a similar effect in the E.P.R. spectra of ThBr4 : Gd3+. We rule out the possibility of an extrinsic pinning effect due to the E.P.R. probe and we show that inhomogeneous phase fluctuations can account for the observation. A crude application of the model developed by Blinc indicates that the average distance between pinning centres is compatible with their being dislocations.
Fichier principal
Vignette du fichier
ajp-jphyslet_1984_45_13_693_0.pdf (683.46 Ko) Télécharger le fichier
Origine : Accord explicite pour ce dépôt

Dates et versions

jpa-00232399 , version 1 (04-02-2008)

Identifiants

Citer

J. Emery, S. Hubert, J.C. Fayet. Large phase fluctuations near TI and phase pinning in incommensurate ThBr4 : Gd3+ through E.S.R. measurements. Journal de Physique Lettres, 1984, 45 (13), pp.693-700. ⟨10.1051/jphyslet:019840045013069300⟩. ⟨jpa-00232399⟩
72 Consultations
119 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More