Magnetic ordering and spin reorientation in ErGa3
Chen, Y.Y. Yao, Y.D. Wang, C.R. Lin, S.H. Czopnik, A. Ali, M. R. Ho, J. C.
Chen, Y.Y.
Yao, Y.D.
Wang, C.R.
Lin, S.H.
Czopnik, A.
Ali, M. R.
Ho, J. C.
Citations
Altmetric:
Other Names
Location
Time Period
Advisors
Original Date
Digitization Date
Issue Date
2002-12-16
Type
Article
Genre
Keywords
Subjects (LCSH)
Citation
Chen, Y., Yao, Y., Wang, C., Lin, S., Czopnik, A., Ali, M., & Ho, J. (2002). Magnetic ordering and spin reorientation in $\mathrmErGa_3$. Phys. Rev. B, 66, 212404.
Abstract
Calorimetric measurements between 0.3 and 10 K have been made on a single crystal of the AuCu3-type cubic compound ErGa3. The temperature dependence of specific heat exhibits an antiferromagnetic ordering-induced peak near 2.7 K, a second peak at 2.5 K due to spin reorientation, and a Schottky anomaly with crystal-field parameters x=0.17 and W=0.22 K, all in agreement with the results from neutron studies. The sum of the calculated entropies associated with the order-disorder process (R ln 2) and the crystal-field effect, respectively, is lower by 0.1R than the experimentally derived magnetic entropy values at approximately 6-10 K. This difference provides an estimate of a 2-J/mol latent heat for the spin rotation process. An anticipated transition from an amplitude-modulated magnetic structure to an equal magnetic-moment structure at temperatures near TN/2 was not observed.
Table of Contents
Description
Click on the DOI link to access this article at the publisher's website (may not be free).
Publisher
American Physical Society
Journal
Physical Review B - Condensed Matter and Materials Physics
Book Title
Series
Digital Collection
Finding Aid URL
Use and Reproduction
Archival Collection
PubMed ID
ISSN
0163-1829