Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2010.2044754
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dc.titleEffect of ru-doping on magnetocaloric effect in Pr based charge ordered manganites
dc.contributor.authorSuresh Kumar, V.
dc.contributor.authorMahendiran, R.
dc.contributor.authorRaveau, B.
dc.date.accessioned2014-10-16T09:50:10Z
dc.date.available2014-10-16T09:50:10Z
dc.date.issued2010-06
dc.identifier.citationSuresh Kumar, V., Mahendiran, R., Raveau, B. (2010-06). Effect of ru-doping on magnetocaloric effect in Pr based charge ordered manganites. IEEE Transactions on Magnetics 46 (6) : 1652-1655. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2010.2044754
dc.identifier.issn00189464
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98683
dc.description.abstractIt is shown that charge-orbital ordered antiferromagnetic state of the parent compound (x=0) in Pr0.5Ca0.5Mn1-xRu xO3 series is destabilized and ferromagnetism is induced by Ru doping, as small as 3%, at the Mn site. The ferromagnetic transition temperature (TC) increases with Ru content from TC=213 K for x=0.03 to 239 K for x=0.1 but the field dependence of magnetization does not show metamagnetic transition above or below TC unlike Pr 0.5Ca0.5Mn1-xCrxO3. The change in magnetic entropy (ΔSM) is the largest for x=0.03 (ΔSM=-4.2 J/kg K at 213 K for ΔH=5 T) and decreases with increasing Ru content (ΔSM=-3.8 J/kg K at 221 K and -3.4 J/kg K at 239 K for ΔH=5 T, for x=0.05 and 0.10, respectively). However, the relative cooling power increases with Ru content from 284.9 J/kg for x=0.03 to 303.6 J/kg for x=0.1. The large magnetic entropy change found in x=0.03 and the absence of high field hysteresis in M-H curves make the Ru-doped samples suitable candidates for magnetic refrigeration. © 2006 IEEE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/TMAG.2010.2044754
dc.sourceScopus
dc.subjectColossal magnetoresistance
dc.subjectMagnetic refrigeration
dc.subjectMagnetocaloric effect
dc.subjectManganites
dc.subjectPhase transition
dc.typeConference Paper
dc.contributor.departmentPHYSICS
dc.description.doi10.1109/TMAG.2010.2044754
dc.description.sourcetitleIEEE Transactions on Magnetics
dc.description.volume46
dc.description.issue6
dc.description.page1652-1655
dc.description.codenIEMGA
dc.identifier.isiut000278037800096
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