
TY  - JOUR
A1  - Mohan, S 
A1  - Kannan, R 
T1  - Lattice Dynamics of the High Tc Superconductor ErBa2Cu3O7
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1994
VL  - 47
IS  - 1
SP  - 103
EP  - 108
KW  - 
UR  - https://doi.org/10.1071/PH940103 
N2  - The lattice dynamics of the high Tc superconductor ErBa2Cu307 have been investigated in detail with a modified three-body force shell model. The model accounts for the effect of many-body interactions in the lattice potential. The aim of the present work is to treat the various interactions between the ions in generalised way without making them numerically equal. The values of the phonon frequencies calculated at the zone centre by this new approach are in good agreement with the available Raman and infrared data. 
ER  -

