Thickness dependent properties of magnetic ultrathinfilms
The dependence of magnetic properties on the thickness of few-layer thin
 films is investigated at finite temperature using the functional 
integral method for solving the Heisenberg spinmodel.The temperature 
dependence of the ultra-thin film's magnetization and Curie 
temperatureare calculated in termsofthemean field theory and of the 
Gaussian spin fluctuation approximations.It has been shown that both 
Curie temperature and temperature interval,where the magnetization is 
non-zero,are strongly reduced with the thickness reduction by using the 
spin fluctuation approximation sin comparison with the mean field 
results.Curie temperature dependence on the film thickness calculated 
numeri cally well agrees with the experimental data for Ni/Cu(100)and 
Ni/Cu(111)ultrathin films.
| Title: | Thickness dependent properties of magnetic ultrathinfilms | 
| Authors: | Bach, Thanh Cong Pham, Huong Thao | 
| Keywords: | Thin film Magnetic properties Functional integral method | 
| Issue Date: | 2013 | 
| Publisher: | H. : ĐHQGHN | 
| Abstract: | The dependence of magnetic properties on the thickness of few-layer thin films is investigated at finite temperature using the functional integral method for solving the Heisenberg spinmodel.The temperature dependence of the ultra-thin film's magnetization and Curie temperatureare calculated in termsofthemean field theory and of the Gaussian spin fluctuation approximations.It has been shown that both Curie temperature and temperature interval,where the magnetization is non-zero,are strongly reduced with the thickness reduction by using the spin fluctuation approximation sin comparison with the mean field results.Curie temperature dependence on the film thickness calculated numeri cally well agrees with the experimental data for Ni/Cu(100)and Ni/Cu(111)ultrathin films. © 2013 Elsevier B.V. All rights reserved | 
| Description: | Physica B: Condensed Matter 426, pp. 144-149 | 
| URI: | http://repository.vnu.edu.vn/handle/VNU_123/27669 | 
| Appears in Collections: | Bài báo của ĐHQGHN trong Scopus | 

 
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