Magnetoelastic behavior of rare earth based intermetallics in high magnetic fields Up to 33 T

M. Doerr, M. Rotter, J. Brooks, E. Jobiliong, A. Lindbaum, R. Vasic, M. Loewenhaupt

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review

2 Citations (Scopus)

Abstract

Magnetoelastic investigations allow tests of microscopic models and theories that include crystal electric field and magnetic exchange interactions. In addition, aspects of the technical methods are of practical interest. Rare earth based antiferromagnets show a wide variety of magnetically ordered states, and transitions between them can be detected very precisely using capacitive dilatometers that sense magnetostriction. Because of the small size ( 22 mm) of the dilatometer it can be operated at low temperatures in the highest steady magnetic fields available at the NHMFL Tallahassee. With care, a resolution of 10-6 in dl/l can be realized. The measurements of longitudinal as well as transverse components of the striction tensor of SmCu2 in a 33 T magnet show a strong distortion in the ac plane in fields along the easy-axis b direction. The lattice parameters a and c change by about 3×10-3 at 25 T. This is correlated with the field-induced transition from an antiferromagnetic to a ferromagnetic state. In fields parallel to the c axis no giant magnetostriction, as is known for other RCu 2 compounds, could be detected.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages1239-1240
Number of pages2
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: 10 Aug 200617 Oct 2006

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period10.08.200617.10.2006

Keywords

  • Antiferromagnets
  • High magnetic fields
  • Magnetostriction
  • Miniature dilatometer

Fingerprint Dive into the research topics of 'Magnetoelastic behavior of rare earth based intermetallics in high magnetic fields Up to 33 T'. Together they form a unique fingerprint.

Cite this