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Thermodynamics and heat transport of a disordered antiferromagnet 3 R -Na 2 MnTeO 6

Na 娜 Li 李, Shuangkui Guang, Hui 慧 Liang 梁, Dan-Dan 丹丹 Wu 吴 and 8 more

Chinese Physics B | Oct 9, 2026

Abstract

Abstract

Abstract We study the low-temperature thermal conductivity, specific heat and magnetic susceptibility of 3 R -Na 2 MnTeO 6 single crystal, which is a layered antiferromagnet. Magnetic susceptibility shows no magnetic transition at low temperatures down to 2 K, while the antiferromagnetic interaction was confirmed by the negative Curie-Weiss temperatures for both interlayer and intralayer susceptibility. Ultralow-temperature specific heat down to 80 mK also displays the absence of magnetic ordering. Whereas, the low-temperature ac susceptibility indicates spin freezing around 1 K. Ultralow-temperature thermal conductivity shows a T 2 -dependence with very small magnitude, which seems to be compatible with the spin glass state. However, both the in-plane and out-of-plane magnetic fields suppress the thermal conductivity rather strongly, which is quite different from the known behavior of that in the spin glass systems. These results suggest a ground state with spin freezing rather than the canonical spin glass.

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Authors

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Na 娜 Li 李

first | Anhui University

Shuangkui Guang

middle | University of Science and Technology of China

Hui 慧 Liang 梁

middle | Anhui University

Dan-Dan 丹丹 Wu 吴

middle | Anhui University

Yan Sun

middle | Anhui University | ORCID 0000-0003-2477-285X

Qiu-Ju Li

middle | Anhui University

Zi-Yang Wu

middle | Huazhong University of Science and Technology

Jun-Feng Wang

middle | Huazhong University of Science and Technology

Guanyin Gao

middle | University of Science and Technology of China | ORCID 0000-0001-8340-5107

Ying 颖 Zhou 周

middle | Anhui University

Xia Zhao

middle | University of Science and Technology of China | ORCID 0000-0002-9001-7759

Xue-Feng Sun

last | Anhui University

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Citation

BibTeX

@article{2026Thermodynamics,
  title = {Thermodynamics and heat transport of a disordered antiferromagnet 3 R -Na 2 MnTeO 6},
  author = {Na 娜 Li 李 and Shuangkui Guang and Hui 慧 Liang 梁 and Dan-Dan 丹丹 Wu 吴 and Yan Sun and Qiu-Ju Li and Zi-Yang Wu and Jun-Feng Wang and Guanyin Gao and Ying 颖 Zhou 周 and Xia Zhao and Xue-Feng Sun},
  journal = {Chinese Physics B},
  year = {2026},
  doi = {10.1088/1674-1056/aeb249},
  url = {https://doi.org/10.1088/1674-1056/aeb249}
}

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