Title

Exceedingly small moment itinerant ferromagnetism of single crystalline La5Co2Ge3

Publication Date

6-1-2020

Department

Ames Laboratory; Physics and Astronomy

Campus Units

Ames Laboratory, Physics and Astronomy

OSTI ID+

1633641

Report Number

IS-J 10243

DOI

10.1103/PhysRevB.101.214405

Journal Title

Physical Review B

Volume Number

101

Issue Number

21

First Page

214405

Abstract

Single crystals of monoclinic La5Co2Ge3 were grown using a self-flux method and were characterized by room-temperature powder x-ray diffraction, anisotropic temperature- and field-dependent magnetization, temperature-dependent resistivity, specific heat, and muon spin rotation. La5Co2Ge3 has a Curie temperature (T-C) of 3.8 K and clear signatures of ferromagnetism in magnetization and mu SR data, as well as a clear loss of spin disorder scattering in resistivity data and a sharp specific heat anomaly. The magnetism associated with La5Co2Ge3 is itinerant has a change in the entropy at T-C of similar or equal to 0.05R ln 2 per mol Co and has a low-field saturated moment of similar to 0.1 mu(B)/Co, making it a rare, itinerant, small moment, low-T-C compound.

DOE Contract Number(s)

AC02-07CH11358; GBMF4411

Language

en

Publisher

Iowa State University Digital Repository, Ames IA (United States)

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