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dc.typeArtigo de periódicopt_BR
dc.titleMeasurement Of Pressure Effects On The Magnetic And The Magnetocaloric Properties Of The Intermetallic Compounds Dyco2 And Er(co 1-xsix)2pt_BR
dc.contributor.authorSingh N.K.pt_BR
dc.contributor.authorKumar P.pt_BR
dc.contributor.authorSuresh K.G.pt_BR
dc.contributor.authorNigam A.K.pt_BR
dc.contributor.authorCoelho A.A.pt_BR
dc.contributor.authorGama S.pt_BR
unicamp.authorCoelho, A.A., Instituto de Física 'Gleb Wataghin', Universidade Estadual de Campinas-UNICAMP, CP 6165, Campinas 13 083 970, SP, Brazilpt_BR
unicamp.authorGama, S., Instituto de Física 'Gleb Wataghin', Universidade Estadual de Campinas-UNICAMP, CP 6165, Campinas 13 083 970, SP, Brazilpt_BR, N.K., Indian Institute of Technology Bombay, Mumbai-400076, Indiapt, P., Indian Institute of Technology Bombay, Mumbai-400076, Indiapt, K.G., Indian Institute of Technology Bombay, Mumbai-400076, Indiapt, A.K., Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai-400005, Indiapt
dc.description.abstractThe effect of external pressure on the magnetic properties and magnetocaloric effect of polycrystalline compounds DyCo2 and Er(Co1-xSix)2 (x ≤ 0,0.025 and 0.05) has been studied. The ordering temperatures of both the parent and the Si-substituted compounds are found to decrease with pressure. In all the compounds, the critical field for metamagnetic transition increases with pressure. It is seen that the magnetocaloric effect in the parent compounds is almost insensitive to pressure, while there is considerable enhancement in the case of Si-substituted compounds. Spin fluctuations arising from the magnetovolume effect play a crucial role in determining the pressure dependence of the magnetocaloric effect in these compounds. The variation of the magnetocaloric effect is explained on the basis of the Landau theory of magnetic phase transitions. © IOP Publishing Ltd.en
dc.relation.ispartofJournal of Physics Condensed Matterpt_BR
dc.identifier.citationJournal Of Physics Condensed Matter. , v. 19, n. 3, p. - , 2007.pt_BR
dc.description.provenanceMade available in DSpace on 2015-06-30T18:48:46Z (GMT). No. of bitstreams: 1 2-s2.0-33947574495.pdf: 777273 bytes, checksum: 2d5230919eda9046d1c7de9195e8a8ad (MD5) Previous issue date: 2007en
dc.description.provenanceMade available in DSpace on 2015-11-26T14:36:50Z (GMT). No. of bitstreams: 1 2-s2.0-33947574495.pdf: 777273 bytes, checksum: 2d5230919eda9046d1c7de9195e8a8ad (MD5) Previous issue date: 2007en
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