ULTRASONIC INVESTIGATION OF MODIFIED CRITICAL BEHAVIOUR IN THE STRONG RANDOM-FIELD SYSTEM Dy ( As0.17V0.83) O4

J. Page , J. Graham

Ultrasonic measurements of the soft-mode elastic constant 1/2 (C11 - C12) have been performed to investigate the pseudospin susceptibility of the random-field system Dy (AsxV1-x) O4. The susceptibility critical exponent γ = 1.73 ± 0.07 for x = 0.17 is much larger than for the pure compound (x = 0), in reasonable agreement with predictions of the random-field Ising model.

Domaines: Articles anciens

J. Page, J. Graham. ULTRASONIC INVESTIGATION OF MODIFIED CRITICAL BEHAVIOUR IN THE STRONG RANDOM-FIELD SYSTEM Dy ( As0.17V0.83) O4. Journal de Physique Colloques, 1988, 49 (C8), pp.C8-1227-C8-1228. ⟨10.1051/jphyscol:19888556⟩. ⟨jpa-00228768⟩