Phase transition in magnetic ultra‐thin films
Vol. 128 No. 1D (2019), Original Article
Vol. 128 No. 1D (2019)

Phase transition in magnetic ultra‐thin films

Original Article
https://doi.org/10.26459/hueuni-jns.v128i1D.5354
Published 2019-11-11
Pham Huong Thao
Faculty of Physics, University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
Ngo Thi Thuan
Faculty of Basic Sciences, University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen St., Hue, Vietnam
Phan Thi Han Ny
Pham Van Dong Secondary School, 12 Lam Hoang St., Hue, Vietnam
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Keywords

thin film
surface anisotropy
spin fluctuation
phase transition
functional integral method

How to Cite

1.
Thao PH, Thuan NT, Ny PTH. Phase transition in magnetic ultra‐thin films. hueuni-jns [Internet]. 2019Nov.11 [cited 2024Nov.19];128(1D):23-9. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/5354
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Abstract

In this paper, we study the influence of surface anisotropy on the phase transition in antiferromagnetic and ferromagnetic ultra‐thin films using the functional integral method. Besides, spin fluctuations are also given to illustrate these phase transitions. We find that the phase transition temperature of the ultra‐thin films may be higher or lower than that of the corresponding bulk systems, which depends on the surface anisotropy. Moreover, we also determine crossover points at which the phase transition temperature is not influenced by the thickness of the thin film.

https://doi.org/10.26459/hueuni-jns.v128i1D.5354
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