Please use this identifier to cite or link to this item:
|Title:||Anomalous alternating current magnetoresistance in La0.5Ca 0.5Mn1-xNixO3 (x=0.04)||Authors:||Barik, S.K.
|Issue Date:||1-Apr-2011||Citation:||Barik, S.K., Mahendiran, R. (2011-04-01). Anomalous alternating current magnetoresistance in La0.5Ca 0.5Mn1-xNixO3 (x=0.04). Journal of Applied Physics 109 (7) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3556758||Abstract:||We report the magnetic field and temperature dependences of ac electrical transport in La0.5Ca0.5 Mn0.96Ni 0.04O3 as a function of frequency. The ac magnetoresistance shows an anomalous behavior as a function of field: it is negative and exhibits a bell shaped curve about the origin (H=0 T) at f=0.1 MHz, but it transforms into a valley at the origin (accompanied by a positive peak on either side of the origin) for f≥3 MHz at T 125 K. With increasing frequency, the depth of the valley increases and the position of the peak shifts toward higher field. However, the magnetoreactance is negative and exhibits only a single peak at the origin for all temperatures and frequencies. At T=125 K and f=5 MHz, a magnetoresistance of 80 and a magnetoreactance of -90 were found for H 2 T. These results are very different from those for La 0.7Sr0.3MnO3, and we discuss the possible origins of the observed anomalous ac magnetotransport in this compound. © 2011 American Institute of Physics.||Source Title:||Journal of Applied Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/98637||ISSN:||00218979||DOI:||10.1063/1.3556758|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 5, 2021
WEB OF SCIENCETM
checked on Feb 25, 2021
checked on Feb 28, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.