Critical Point of Ising Films with Different Growth Directions
WANG Huai-yu1, ZHOU Yun-song2, D.L.Lin3
1Department of Physics, Yantai University, Yantai 264005
2Department of Physics, Capital Normal University, Beijing 100037
3Department of Physics, State University of New York at Buffalo, Buffalo, NY 14260-1500, U.S.A.
Critical Point of Ising Films with Different Growth Directions
WANG Huai-yu1;ZHOU Yun-song2;D.L.Lin3
1Department of Physics, Yantai University, Yantai 264005
2Department of Physics, Capital Normal University, Beijing 100037
3Department of Physics, State University of New York at Buffalo, Buffalo, NY 14260-1500, U.S.A.
Abstract： The critical temperature Tc of a spin-1/2 Ising film of cubic structures is calculated by the variational cumulant expansion method for three directions of growth. The results from different growth directions are analysed and compared with each other. In the present model, the Tc values depend largely on the number of nearest neighbors in a monolayer for films with the same number of monolayers but grown in different directions. For sc, bcc and fcc structures, the highest Tc is found along the (100), (110), and (111) direction, respectively.
WANG Huai-yu;ZHOU Yun-song;D.L.Lin. Critical Point of Ising Films with Different Growth Directions[J]. 中国物理快报, 2000, 17(1): 55-57.
WANG Huai-yu, ZHOU Yun-song, D.L.Lin. Critical Point of Ising Films with Different Growth Directions. Chin. Phys. Lett., 2000, 17(1): 55-57.
2000, Vol. 17 
