Отправить статью по E-mail Examining Magnetic Models and Anisotropies in β-Cu2V2O7 by High-Frequency ESR
- Авторы: Ruan M.Y.1,2, Ouyang Z.W.2, Sun Y.C.2, Xia Z.C.2, Rao G.H.3, Chen H.S.1
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Учреждения:
- College of Physics and Electronic Engineering, Northwest Normal University
- Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology
- School of Materials Science and Engineering, Guilin University of Electronic Technology
- Выпуск: Том 48, № 5 (2017)
- Страницы: 423-433
- Раздел: Original Paper
- URL: https://journals.rcsi.science/0937-9347/article/view/247682
- DOI: https://doi.org/10.1007/s00723-017-0871-3
- ID: 247682
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Аннотация
High-frequency electron spin resonance (ESR) measurements were carried out on a single crystal β-Cu2V2O7, where Cu–O edge-sharing chains are connected by non-magnetic VO4 tetrahedrons. Due to sizable anisotropies, analyses of bulk magnetic properties alone have not yielded any definite conclusion and the modeling of the magnetic lattice is controversial. By means of high-frequency ESR with operating frequencies of 135–405 GHz and at a temperature range of 4.2–50 K, the large g value anisotropy is determined, which removes the ambiguity of susceptibility fitting. Moreover, non-negligible exchange anisotropy is evaluated by analyzing high-field magnetization and antiferromagnetic resonance in antiferromagnetic state appearing below TN = 26 K. Based on these microscopic information, we found that alternating-chain model is the most reasonable candidate for explaining properties of the crystal. The present study shows the importance of combining macroscopic and microscopic probes in analyzing magnetic network of complex magnetic materials.
Об авторах
M. Ruan
College of Physics and Electronic Engineering, Northwest Normal University; Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology
Email: zwouyang@mail.hust.edu.cn
Китай, Lanzhou, 730070; Wuhan, 430074
Z. Ouyang
Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology
Автор, ответственный за переписку.
Email: zwouyang@mail.hust.edu.cn
Китай, Wuhan, 430074
Y. Sun
Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology
Email: zwouyang@mail.hust.edu.cn
Китай, Wuhan, 430074
Z. Xia
Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology
Email: zwouyang@mail.hust.edu.cn
Китай, Wuhan, 430074
G. Rao
School of Materials Science and Engineering, Guilin University of Electronic Technology
Email: zwouyang@mail.hust.edu.cn
Китай, Guilin, 541004
H. Chen
College of Physics and Electronic Engineering, Northwest Normal University
Email: zwouyang@mail.hust.edu.cn
Китай, Lanzhou, 730070
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