TY - JOUR

T1 - Lattice dynamics of LaMnO3: Coupling of the lattice and orbital degrees of freedom

AU - Nikiforov, A.

AU - Popov, S.

PY - 2001/6

Y1 - 2001/6

N2 - The lattice dynamics of regular LaMnO3 is calculated within a shell model with pairwise interionic interaction potentials and with a Jahn-Teller (JT) contribution included into the energy and dynamic matrix of the crystal. A correlation is made between Raman spectral lines and lattice vibrations. The positions of some lines in the Raman spectrum are found to depend heavily on the linear JT coupling constant V e . The effect of the JT coupling on the phonon density of states of LaMnO3 is investigated.

AB - The lattice dynamics of regular LaMnO3 is calculated within a shell model with pairwise interionic interaction potentials and with a Jahn-Teller (JT) contribution included into the energy and dynamic matrix of the crystal. A correlation is made between Raman spectral lines and lattice vibrations. The positions of some lines in the Raman spectrum are found to depend heavily on the linear JT coupling constant V e . The effect of the JT coupling on the phonon density of states of LaMnO3 is investigated.

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000169692100026

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=0035374078

U2 - 10.1134/1.1378157

DO - 10.1134/1.1378157

M3 - Article

VL - 43

SP - 1132

EP - 1140

JO - Physics of the Solid State

JF - Physics of the Solid State

SN - 1063-7834

IS - 6

ER -