Continuously evolving antiferromagnetic order within the superconducting phase in Zn-doped CeCoIn5

被引：0

作者：

Inoh, Kaede ^{[1
]}

Koizumi, Ryosuke ^{[1
]}

Takahashi, Teppei ^{[1
]}

Fujimoto, Hayao ^{[1
]}

Ebisawa, Hideaki ^{[1
]}

Yashiro, Azumi ^{[1
]}

Kohinata, Mika ^{[1
]}

Hosogai, Asuka ^{[1
]}

Matsuo, Akira ^{[2
]}

Kindo, Koichi ^{[2
]}

Kawasaki, Ikuto ^{[3
]}

Okuyama, Daisuke ^{[4
,8
]}

Wu, Hung-Cheng ^{[4
,9
]}

Sato, Taku J. ^{[4
]}

Tenya, Kenichi ^{[5
]}

Ohoyama, Kenji ^{[6
,7
]}

Iwasa, Kazuaki ^{[6
,7
]}

Yokoyama, Makoto ^{[1
,7
]}

机构：

[1] Ibaraki Univ, Coll Sci, Mito, Ibaraki 3108512, Japan

[2] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[3] Japan Atom Energy Agcy, Mat Sci Res Ctr, Sayo, Hyogo 6795148, Japan

[4] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[5] Shinshu Univ, Fac Educ, Nagano 3808544, Japan

[6] Ibaraki Univ, Inst Quantum Beam Sci, Tokai, Ibaraki 3191106, Japan

[7] Ibaraki Univ, Res & Educ Ctr Atom Sci, Naka, Ibaraki 3191106, Japan

[8] High Energy Accelerator Res Org, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan

[9] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 80424, Taiwan

来源：

PHYSICAL REVIEW B | 2025年 / 111卷 / 10期

基金：

日本学术振兴会;

关键词：

MAGNETIC FORM-FACTOR; NEUTRON-SCATTERING; ELECTRON;

D O I：

10.1103/PhysRevB.111.104510

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The antiferromagnetic (AFM) order inside the superconducting (SC) phase of CeCo(In1-xZnx)(5) (x 0.06) is investigated by neutron scattering, specific heat, and ac magnetic susceptibility measurements. It is confirmed that the AFM order with a modulation vector of q(0) = (1/2, 1/2, 1/2) develops for x > 0.03, accompanied by the reduction of the SC transition temperature T(c )from 2.3 K (x = 0) to 1.6 K (x = 0.06). The AFM transition temperature T-N and the staggered moment mu continuously increase from zero within the SC phase as x increases beyond 0.03. For the small x range satisfying the T-N < T-c condition, the AFM Bragg peak intensity shows an unusually gradual development with a (T-N - T )(2) function below T-N and the specific heat shows no anomaly at TN. In contrast, when T-N is larger than T(c )at x = 0.06, the AFM Bragg peak evolves with the conventional (T-N - T ) dependence and a clear jump in the specific heat occurs at T-N . A coupling between the SC and AFM orders at the microscopic level is suggested to yield these unusual features observed in the small x range.

引用

页数：9