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J van Lierop

Publications and source records attributed to J van Lierop.

2 recordsLinked to original sources
PubMed2003

Field and temperature induced magnetic transition in Gd5Sn4: a giant magnetocaloric material.

Gd5Sn4 exhibits a giant magnetocaloric effect comparable to that reported in the Gd5(Si,Ge)(4) system. The giant magnetocaloric effect is associated with a first-order change that occurs at approximately 82 K in zero field, and can be reversed by the application of an external field of a few Tesla. 119Sn Mössbauer spectroscopy shows that this material is magnetically inhomogeneous over a wide range of temperatures and fields.

Journal Article↗
PubMed2001

Spin dynamics in a frustrated magnet.

180 degrees spin flips have been identified as the dominant fluctuation mechanism at the transverse spin freezing transition in partially frustrated a-Fe92Zr8. The form of the selective excitation double Mössbauer spectra, coupled with the perfect agreement with zero-field muon spin relaxation data, eliminates other relaxation forms.

Journal Article↗