Electron spin resonance of the itinerant ferromagnets LaCrGe3, CeCrGe3 and PrCrGe3. (4th October 2021)

• Record Type: Journal Article
• Authors: Sichelschmidt, Jörg; Gruner, Thomas; Das, Debarchan; Hossain, Zakir
• Is Part Of: Journal of physics. Volume 33:Number 49(2021)
• Publication Date: 2021-10-04
• Subjects: heavy fermion systems -- local moment in compounds and alloys -- electron spin resonance; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/ac27d7
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: We report electron spin resonance of the itinerant ferromagnets LaCrGe3, CeCrGe3, and PrCrGe3 . These compounds show well defined and very similar spectra of itinerant Cr 3 d spins in the paramagnetic temperature region. Upon cooling and crossing the Cr-ferromagnetic ordering (below around 90 K) strong spectral structures start to dominate the resonance spectra in a quite different manner in the three compounds. In the Ce- and Pr-compounds the resonance is only visible in the paramagnetic region whereas in the La-compound the resonance can be followed far below the ferromagnetic ordering temperature. This behavior will be discussed in terms of the specific interplay between the 4 f and 3 d magnetism which appears quite remarkable since CeCrGe3 displays heavy fermion behavior even in the magnetically ordered state.