Giant dielectric susceptibility and magnetocapacitance effect in manganites at room temperature |
| |
| Authors: | R F Mamin T Egami Z Marton C A Migachev and M F Sadykov |
| |
| Institution: | (1) Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA;(2) Zavoisky Physical-Technical Institute, Kazan Scientific Center, Russian Academy of Sciences, Kazan, 420029, Russia;(3) Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA;(4) Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA |
| |
| Abstract: | Extremely high values of the relative permittivity up to 107 and the magnetocapacitance up to 105% have been found in La1 − x
Sr
x
MnO3 single crystals (x = 0.1, 0.11). These phenomena are observed even at room temperature. The observed behavior can be a consequence of the strong
interaction among charge, spin, and lattice degrees of freedom, which leads to charge and phase separation in the regime before
the percolation threshold.
Original Russian Text ? R.F. Mamin, T. Egami, Z. Marton, C.A. Migachev, M.F. Sadykov, 2007, published in Pis’ma v Zhurnal
éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 86, No. 10, pp. 731–735. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
