Non-Fermi-liquid behavior consistent with a preasymptotic disorder-tuned ferromagnetic quantum critical point in the heavy fermion system CeTi1-x VxGe3

R. Z. Lin, H. Jin, P. Klavins, W. T. Chen, Y. Y. Chang, C. H. Chung, V. Taufour, C. L. Huang

Research output: Contribution to journalArticlepeer-review

Abstract

An investigation of the thermodynamic and electrical transport properties of the isoelectronic chemical substitution series CeTi1-xVxGe3 (CTVG) single crystals is reported. As x increases, the ferromagnetic (FM) transition temperature is suppressed, reaching absolute zero at the critical concentration x=0.4, where a non-Fermi-liquid low-temperature specific heat and electrical resistivity, as well as the hyperscaling of specific heat and magnetization, are found. Our study suggests the presence of an FM quantum critical point (QCP) in CTVG. The obtained critical exponents indicate that CTVG falls in the preasymptotic region of the disorder-tuned FM QCP predicted by the Belitz-Kirkpatrick-Vojta theory.

Original languageEnglish
Article number033130
JournalPhysical Review Research
Volume6
Issue number3
DOIs
Publication statusPublished - 2024 Jun

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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