Document Type

Article

Publication Date

9-4-2013

Journal or Book Title

Physical Review B

Volume

88

First Page

094405

DOI

10.1103/PhysRevB.88.094405

Abstract

We report the synthesis of hexagonal LaVxCr1−xGe3 (x=0–0.21, 1.00) single crystals and present a systematic study of this series by measurements of temperature- and field-dependent magnetic susceptibility, magnetization, resistivity, and specific heat. Ferromagnetism has been observed for x=0–0.21. The Curie temperature declines monotonically as the V concentration increases. Single-crystalline samples could only be grown for x values up to 0.21 for which the transition temperature was suppressed down to 36 K. Although we could not fully suppress TC via V substitution, for x=0.16, we performed magnetization measurements under pressure. The ferromagnetic state is suppressed under pressure at an initial rate of dTC/dp≃−11.7 K/GPa and vanishes by 3.3 GPa. The increase of the Rhodes-Wohlfarth ratio suggests that the ferromagnetism in this system evolves toward itinerant as the V concentration increases.

Comments

The following article appeared in Physical Review B 88 (2013): 094405, doi:10.1103/PhysRevB.88.094405. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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