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

被引：2

作者：

Park, Tae Beom ^{[1
,2
]}

Shin, Soohyeon ^{[1
,2
]}

Lee, Sangyun ^{[3
]}

Seo, Soonbeom ^{[3
]}

Jang, Harim ^{[1
,2
]}

Kim, Jihyun ^{[1
,2
]}

Lee, Hyoyoung ^{[4
]}

Wang, Honghong ^{[1
,2
]}

Lee, Hanoh ^{[1
,2
]}

Park, Tuson ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, Ctr Quantum Mat & Superconduct CQMS, Suwon 16419, South Korea

[2] Sungkyunkwan Univ, Dept Phys, Suwon 16419, South Korea

[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[4] Sungkyunkwan Univ, Inst Basic Sci IBS, Dept Chem, Ctr Integrated Nanostruct Phys CINAP, Suwon 16419, South Korea

来源：

PHYSICAL REVIEW MATERIALS | 2020年 / 4卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

QUANTUM CRITICAL-POINT; SUPERCONDUCTIVITY; ELECTRON;

D O I：

10.1103/PhysRevMaterials.4.084801

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：9