Studies of vibrational surface modes in ionic crystals. I. Detailed shell-model studies for the unrelaxed (001) face of seven crystals having the rocksalt structure

1977 ◽  
Vol 15 (2) ◽  
pp. 1167-1186 ◽  
Author(s):  
T. S. Chen ◽  
F. W. de Wette ◽  
G. P. Alldredge
2013 ◽  
Vol 25 (13) ◽  
pp. 135404 ◽  
Author(s):  
R A Casali ◽  
J Lasave ◽  
M A Caravaca ◽  
S Koval ◽  
C A Ponce ◽  
...  

2017 ◽  
Vol 92 (6) ◽  
pp. 063001 ◽  
Author(s):  
Noritaka Shimizu ◽  
Takashi Abe ◽  
Michio Honma ◽  
Takaharu Otsuka ◽  
Tomoaki Togashi ◽  
...  

2011 ◽  
Vol 66 (2) ◽  
pp. 283-286 ◽  
Author(s):  
W.A. Richter ◽  
B. Alex Brown ◽  
A. Signoracci ◽  
M. Wiescher
Keyword(s):  

1983 ◽  
Vol 118 (1) ◽  
pp. 147-157 ◽  
Author(s):  
K. Regiński
Keyword(s):  

2015 ◽  
Vol 91 (2) ◽  
Author(s):  
Andrei Neacsu ◽  
Mihai Horoi
Keyword(s):  

1973 ◽  
Vol 51 (7) ◽  
pp. 737-742 ◽  
Author(s):  
G. Do Dang ◽  
J. A. Rabbat

The structure of the low-lying states of 56Ni is studied in the frameworks of the Hartree–Fock theory and the shell model. Attention is focused on the choice of the single particle energies and the effect of highly excited states. It is found that the low-lying states can reasonably be described by the shell model with 1p–1h and 2p–2h excitations from the 1f7/2 level. A critical discussion of the contradictory results of previous works is made and their connection with the present work is pointed out.


2001 ◽  
Author(s):  
C. VOLPE ◽  
N. AUERBACH ◽  
G. COLÒ ◽  
T. SUZUKI ◽  
N. VAN GIAI
Keyword(s):  

1967 ◽  
Vol 45 (5) ◽  
pp. 1885-1899 ◽  
Author(s):  
R. G. Deo ◽  
B. Dayal

The shell model of Woods et al. has been modified to include the effect of the many-body interaction in the ionic crystals in a simple phenomenological way. This is based on the work of Lowdin, Lundqvist, and Verma and Dayal. In the new model which the authors refer to as the modified shell model, it is assumed that the volume-dependent potential is due to the interaction between the cores of the ions only. This introduces additional parameters in the model which have been derived from the elastic and dielectric properties of the crystal. The variation of the specific heat with temperature of potassium iodide has been studied by the original model of Woods et al. as well as by the new model. It is seen that the theoretical specific heats and dispersion curves given by both the models are in fair agreement with the experimental results. However, the shell model fails to account for the Cauchy discrepancy in this crystal, whereas the new model removes this difficulty.


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