Investigation of the field induced antiferromagnetic phase transition in the frustrated magnet: Gadolinium gallium garnet

P. Schiffer, A. P. Ramirez, David A. Huse, A. J. Valentino

Research output: Contribution to journalArticle

111 Scopus citations

Abstract

The geometrically frustrated magnet gadolinium gallium garnet (GGG) has a unique low temperature (<0.38 K.) antiferromagnetic phase which exists only in finite fields (H∼1 T). We have measured the specific heat and magnetic susceptibility of GGG to obtain the first accurate map of the low temperature phase diagram. A ground state magnetic structure in this field regime has been determined by simulations including both the exchange and dipole interactions. We find a critical exponent α<0 at the ordering transition, consistent with a transition in a random magnetic environment.

Original languageEnglish (US)
Pages (from-to)2500-2503
Number of pages4
JournalPhysical Review Letters
Volume73
Issue number18
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Investigation of the field induced antiferromagnetic phase transition in the frustrated magnet: Gadolinium gallium garnet'. Together they form a unique fingerprint.

  • Cite this