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나노구조물리 연구단
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Evolution of antiferromagnetism in Zn-doped heavy-fermion compound CeRh(In1-xZnx)(5)

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Title
Evolution of antiferromagnetism in Zn-doped heavy-fermion compound CeRh(In1-xZnx)(5)
Author(s)
Tae Beom Park; Soohyeon Shin; Sangyun Lee; Soonbeom Seo; Harim Jang; Jihyun Kim; Hyoyoung Lee; Honghong Wang; Hanoh Lee; Tuson Park
Subject
QUANTUM CRITICAL-POINT, ; SUPERCONDUCTIVITY, ; ELECTRON
Publication Date
2020-08
Journal
PHYSICAL REVIEW MATERIALS, v.4, no.8, pp.084801
Publisher
AMER PHYSICAL SOC
Abstract
©2020 American Physical Society We report the dependence of antiferromagnetism on Zn-doping concentration in the newly synthesized CeRh(In1-xZnx)(5) single crystal with x <= 0.023. X-ray-diffraction measurements showed a smooth decrease of lattice parameters with an increasing Zn concentration, indicating a positive chemical pressure effect. The electrical resistivity, specific heat, and magnetic susceptibility measurements revealed that the antiferromagnetic transition temperature T-N initially decreases from 3.8 K for pure CeRhIn5 to 3.1 K at x = 0.012; then, it becomes flat, remaining at approximately 3.1 K between Zn concentrations of 0.012 and 0.017, and finally, it increases to 3.3 K at 0.023 Zn concentration. These results suggest that the change in the electronic structure induced by Zn doping is more important than the chemical pressure effects with regard to tuning the magnetic order. A study on the electronic structure and pressure tuning of the newly synthesized heavy-fermion compound CeRh(In1-xZnx)(5), which does not include a toxic element, is expected to further enhance our understanding of the competing ground states emerging in heavy-fermion systems.
URI
https://pr.ibs.re.kr/handle/8788114/7689
DOI
10.1103/PhysRevMaterials.4.084801
ISSN
2475-9953
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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