Making and breaking covalent bonds across the magnetic transition in the giant magnetocaloric material Gd5(Si2Ge2)

A temperature-dependent, single crystal x-ray diffraction study of the giant magnetocaloric material, Gd5(Si2Ge2), across its Curie temperature (276 K) reveals that the simultaneous orthorhombic to monoclinic transition occurs by a shear mechanism in which the (Si, Ge)-(Si,Ge) dimers that are richer...

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Veröffentlicht in:	Physical review letters 2000-05, Vol.84 (20), p.4617-4620
Hauptverfasser:	Choe, W, Pecharsky, VK, Pecharsky, AO, Gschneidner, Jr, KA, Young, Jr, VG, Miller, GJ
Format:	Artikel
Sprache:	eng
Schlagworte:	CHEMICAL BONDS CLEAVAGE GADOLINIUM ALLOYS GERMANIUM ALLOYS MATERIALS SCIENCE SILICON ALLOYS
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