High-pressure study of the phase transition in the itinerant ferromagnet CoS2

TitleHigh-pressure study of the phase transition in the itinerant ferromagnet CoS2
Publication TypeJournal Article
Year of Publication2011
AuthorsSidorov VA, Krasnorussky VN, Petrova AE, Utyuzh AN, Yuhasz WM, Lograsso TA, Thompson JD, Stishov SM
Journal TitlePhysical Review B
Volume83
Pages060412
Date Published02
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberISI:000287712600001
KeywordsELECTRICAL-RESISTIVITY, magnetic-properties, metamagnetism
Abstract

Electrical resistivity and magnetic susceptibility measurements of the itinerant ferromagnet CoS2 at high pressures reveal that its magnetic ordering temperature is tuned to zero at a critical pressure 4.8 GPa, indicating the existence of a quantum-phase transition. The ambient pressure continuous magnetic-phase transition in CoS2 becomes first order on a very slight pressure increase, with a tricritical point probably located almost at ambient pressure. No deviations from Fermi-liquid behavior were found in the vicinity of the quantum-phase transition in CoS2, implying its strong first-order nature.

URL<Go to ISI>://000287712600001
DOI10.1103/PhysRevB.83.060412
Alternate JournalPhys. Rev. B