Measurement of pressure effects on the magnetic and the magnetocaloric properties of the intermetallic compounds DyCo2 and Er(Co1-xSix)(2)

dc.creatorSingh, NK
dc.creatorKumar, P
dc.creatorSuresh, KG
dc.creatorNigam, AK
dc.creatorCoelho, AA
dc.creatorGama, S
dc.date2007
dc.date45292
dc.date2014-11-17T22:45:05Z
dc.date2015-11-26T17:43:03Z
dc.date2014-11-17T22:45:05Z
dc.date2015-11-26T17:43:03Z
dc.date.accessioned2018-03-29T00:25:04Z
dc.date.available2018-03-29T00:25:04Z
dc.identifierJournal Of Physics-condensed Matter. Iop Publishing Ltd, v. 19, n. 3, 2007.
dc.identifier0953-8984
dc.identifierWOS:000243724300020
dc.identifier10.1088/0953-8984/19/3/036213
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/53405
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/53405
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/53405
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1287481
dc.descriptionThe 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.
dc.description19
dc.description3
dc.languageen
dc.publisherIop Publishing Ltd
dc.publisherBristol
dc.publisherInglaterra
dc.relationJournal Of Physics-condensed Matter
dc.relationJ. Phys.-Condes. Matter
dc.rightsfechado
dc.rightshttp://iopscience.iop.org/page/copyright
dc.sourceWeb of Science
dc.subjectRare-earth
dc.subjectMetamagnetic Transition
dc.subjectPhase-transitions
dc.subjectRco2 Compounds
dc.subjectTemperature
dc.subjectErco2
dc.subjectOrder
dc.titleMeasurement of pressure effects on the magnetic and the magnetocaloric properties of the intermetallic compounds DyCo2 and Er(Co1-xSix)(2)
dc.typeArtículos de revistas


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