Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/98750
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dc.titleImpact of Fe doping on radiofrequency magnetotransport in La 0.7Sr 0.3Mn 1-xFe xO 3
dc.contributor.authorBarik, S.K.
dc.contributor.authorMahendiran, R.
dc.date.accessioned2014-10-16T09:50:58Z
dc.date.available2014-10-16T09:50:58Z
dc.date.issued2012-04-01
dc.identifier.citationBarik, S.K., Mahendiran, R. (2012-04-01). Impact of Fe doping on radiofrequency magnetotransport in La 0.7Sr 0.3Mn 1-xFe xO 3. Journal of Applied Physics 111 (7) : -. ScholarBank@NUS Repository.
dc.identifier.issn00218979
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98750
dc.description.abstractWe report four probe ac electrical impedance (Z) in La 0.7Sr 0.3Mn 1-xFe xO 3 (x ≤ 0.15) as a function of temperature (T) and magnetic field (H) in response to radio frequency (f 0.1-5 MHz) ac current flowing directly through the sample. It is found that Z(T,H 0) shows an abrupt increase around Curie temperature with increasing f and this excess resistance is suppressed under an external magnetic field. A large magnetoimpedance of δZ/Z -21 at f 1 MHz for x = 0.05 and -8.5 at f 5 MHz for x = 0.15 are observed for H 500 Oe. We suggest that the magnetoimpedance results from suppression of the high frequency transverse permeability by an external magnetic field. Optimization of composition and frequency of ac current will enable us to obtain much larger low-field magnetoimpedance value suitable for practical applications at room temperature. © 2012 American Institute of Physics.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.3680218
dc.sourceScopus
dc.typeConference Paper
dc.contributor.departmentPHYSICS
dc.description.sourcetitleJournal of Applied Physics
dc.description.volume111
dc.description.issue7
dc.description.page-
dc.description.codenJAPIA
dc.identifier.isiut000303282401191
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