Dynamic phase transition of ferroelectric nanotube described by a spin-1/2 transverse Ising model
Chundong Wang(王春栋)1,2, Ying Wu(吴瑛)1,†, Yulin Cao(曹喻霖)3,‡, and Xinying Xue(薛新英)4,§
1 College of Life Science, Tarim University, Alaer 843300, China; 2 School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China; 3 Physics Laboratory, Industrial Training Center, Shenzhen Polytechnic, Shenzhen, China; 4 Department of Physics, College of Science, Shihezi University, Xinjiang 832003, China
Abstract The dynamic phase transition properties for ferroelectric nanotube under a spin-1/2 transverse Ising model are studied under the effective field theory (EFT) with correlations. The temperature effects on the pseudo-spin systems are unveiled in three-dimensional (3-D) and two-dimensional (2-D) phase diagrams. Moreover, the dynamic behaviors of exchange interactions on the 3-D and 2-D phase transitions under high temperature are exhibited. The results present that it is hard to obtain pure ferroelectric phase under high temperature; that is, the vibration of orderly pseudo-spins cannot be eliminated completely.
Fund: Project supported by the National Key R&D Program of China (Grant No. 2017YFE0120500), the National Natural Science Foundation of China (Grant No. 51972129), the South Xinjiang Innovation and Development Program of Key Industries of Xinjiang Production and Construction Corps (Grant No. 2020DB002), the Fundamental Research Funds for the Central Universities, China (Grant Nos. HUST 2018KFYYXJJ051 and 2019KFYXMBZ076), and Shenzhen Fundamental Research Fund (Grant No. JCYJ20190813172609404). C.D.W. acknowledges the Hubei "Chu-Tian Young Scholar" Program.
Chundong Wang(王春栋), Ying Wu(吴瑛), Yulin Cao(曹喻霖), and Xinying Xue(薛新英) Dynamic phase transition of ferroelectric nanotube described by a spin-1/2 transverse Ising model 2021 Chin. Phys. B 30 020504
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