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Giant magnetocaloric effects by tailoring the phase transitions
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/content/aip/journal/apl/96/17/10.1063/1.3399773
2010-04-27
2014-10-24

Abstract

The MnCoGe alloy can crystallize in either the hexagonal - or the orthorhombic TiNiSi-type of structure. In both phases MnCoGe behaves like a typical ferromagnet with a second-order magnetic phase transition. For with B on interstitial positions, we discover a giant magnetocaloric effect associated with a single first-order magnetostructuralphase transition, which can be achieved by tuning the magnetic and structural transitions to coincide. The results obtained on the MnCoGe-type alloys may be extensible to other types of magnetic materials undergoing a first-order structural transformation and can open up some possibilities for searching magnetic refrigerants for room-temperature applications.

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Scitation: Giant magnetocaloric effects by tailoring the phase transitions
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/17/10.1063/1.3399773
10.1063/1.3399773
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