Field-induced spin nematic liquid of the S = 1/2 Kondo necklace spin chain

AIP Advances 2026 Open access

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Authors: Ryoma Hasegawa, Yuki Hamazaki, Tomohide Kawatsu, Haruto Suzuki, Tomoki Houda, Hiroki Nakano, Kiyomi Okamoto, Tôru Sakai
DOI: 10.1063/9.0000960
Cited by: 0
References: 18

Abstract

The magnetization process of the S = 1/2 Kondo necklace spin chain with the anisotropic ferromagnetic interaction is investigated using the numerical diagonalization of finite-size systems. As a result, it is found that the two-magnon bound state appears in the field-induced Tomonaga-Luttinger liquid phase for sufficiently large anisotropy. The critical exponent analysis indicates that the spin nematic correlation is dominant at higher magnetization region in the two-magnon bound phase. The phase diagram with respect to the anisotropy and the magnetization is presented.

Fields of Study & Subjects

Advanced Condensed Matter Physics Quantum many-body systems Physics of Superconductivity and Magnetism

Publication details

Journal / source
AIP Advances
Volume
16
Issue
2
Publication date
1 February 2026
Language
EN