Magnetoacoustics in low dimensional spin systems in pulsed magnetic fields

We present results on sound wave propagation in pulsed fields up to 50 T for CsCuCl3 and (VO)2P2O7. Sound velocity and attenuation exhibit anomalies at the field induced spin transitions at low temperatures. In CsCuCl3 we observe step-like anomalies in sound velocity and pronounced peaks in attenuat...

Full description

Saved in:
Bibliographic Details
Published inJournal of applied physics Vol. 87; no. 9; pp. 7055 - 7057
Main Authors Wolf, B., Schmidt, S., Schwenk, H., Zherlitsyn, S., Lüthi, B.
Format Journal Article
LanguageEnglish
Published 01.05.2000
Online AccessGet full text

Cover

More Information
Summary:We present results on sound wave propagation in pulsed fields up to 50 T for CsCuCl3 and (VO)2P2O7. Sound velocity and attenuation exhibit anomalies at the field induced spin transitions at low temperatures. In CsCuCl3 we observe step-like anomalies in sound velocity and pronounced peaks in attenuation at the saturation field (34 T at 1.5 K) and broader anomalies at the commensurate-incommensurate transition (14–17 T). In (VO)2P2O7 we observe a strong anomaly at the critical field when the lowest triplet branch crosses the singlet ground state (27 T at 1.6 K). All these experiments give important information on the spin state in high magnetic fields of these low dimensional spin systems and on the spin-phonon coupling.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.372929