Please use this identifier to cite or link to this item:
|Title:||Effect of Bi doping on magnetoresistance in La 0.7-x Bi xSr 0.3MnO 3||Authors:||Barik, S.K.
|Issue Date:||Mar-2011||Citation:||Barik, S.K., Mahendiran, R. (2011-03). Effect of Bi doping on magnetoresistance in La 0.7-x Bi xSr 0.3MnO 3. Journal of Nanoscience and Nanotechnology 11 (3) : 2603-2606. ScholarBank@NUS Repository.||Abstract:||It is shown that upon increasing Bi content (x) in La 0.7-xBi xSr 0.3MnO 3, the ground state changes from ferromagnetic metal (x = 0) to charge ordered antiferromagnetic insulator (x > 0.4). The x = 0.3 compound shows unusual magnetic and magnetoresistive properties: it shows hysteresis in magnetization as a function of temperature, field-induced metamagnetic transition in the paramagnetic state, and nearly 100% magnetoresistance. The magnetoresistance as a function of composition at μ 0H = 5 T increases from 38% for x = 0.05 to 99.6% for x = 0.3 and then drops to 60% for x = 0.4. The unusual behavior of x = 0.3 composition is suggested to coexistence of short-range charge-ordered clusters and ferromagnetic domains. The field-induced melting of these charge-ordered clusters leads to large magnetoresista nce effect. © 2011 American Scientific Publishers.||Source Title:||Journal of Nanoscience and Nanotechnology||URI:||http://scholarbank.nus.edu.sg/handle/10635/114874||ISSN:||15334880|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 13, 2018
WEB OF SCIENCETM
checked on Dec 31, 2018
checked on Sep 20, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.