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Dielectric anomaly at T_N in LaMnO3 by Mondal, Parthasarathi; Bhattacharya, Dipten; Choudhury, Pranab; Mandal, Prabhat is a scholarly article available to read on EtoBox.

What is Dielectric anomaly at T_N in LaMnO3 about?

We observe a distinct anomaly in dielectric permittivity (epsilon') as well as relaxation time (tao_0) versus temperature (T) pattern at the antiferromagnetic transition point (T_N) in single crystal of LaMnO3. The equivalent circuit analysis of the impedance spectra across T_N reveals clear anomaly in the capacitive component C_0 at T_N. Since no structural transition takes place across T_N, the anomaly in tao_0 and C_0 at T_N possibly signifies multiferroicity stemming from coupling between orbital and spin order in LaMnO3.

Author

Mondal, Parthasarathi; Bhattacharya, Dipten; Choudhury, Pranab; Mandal, Prabhat

Published

2007

Language

EN