dc.contributor.author | COEY, JOHN MICHAEL DAVID | |
dc.date.accessioned | 2009-08-12T09:48:00Z | |
dc.date.available | 2009-08-12T09:48:00Z | |
dc.date.issued | 1987 | |
dc.date.submitted | 1987 | en |
dc.identifier.citation | D H Ryan, J M D Coey, E Batella, Z Altounian and J O Strom-Olsen 'Magnetic properties of iron-rich Fe-Zr glasses' in Physical Review B - Condensed Matter and Materials Physics, 35, (16), 1987, pp 8630 - 8638 | en |
dc.identifier.other | Y | en |
dc.identifier.other | Y | |
dc.description | PUBLISHED | en |
dc.description.abstract | A systematic study of the magnetic properties of melt-spun amorphous FexZr100-x alloys with 88?x?93 using Mossbauer and magnetization measurements has established the magnetic phase diagram. The ordering temperature Tc falls sharply with increasing x; below a second transition Txy, associated with the freezing of transverse-spin components, all the alloys order asperomagnetically (Txy<Tc). Hysteresis appears at still lower temperatures, but it is not directly related to the transverse-spin freezing. A T1.3 variation of hyperfine field observed for T<Txy is attributed to excitation of transverse magnetic modes. Contrary to the predictions of Heisenberg spin-glass theory, neither the ferromagnetic nor the asperomagnetic order appears to be long range. Extrapolation to x=100 indicates that pure amorphous iron would be a speromagnet with an iron moment of 1.7?B and a spin-freezing temperature of order 150 K. Upon hydrogenation the magnetic structures of all the a-Fe-Zr alloys lose their noncollinear character, becoming good ferromagnets with Curie points in excess of 400 K. | en |
dc.format.extent | 8630 | en |
dc.format.extent | 8638 | en |
dc.format.extent | 1404973 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | en |
dc.publisher | American Physcial Society | en |
dc.relation.ispartofseries | Physical Review B - Condensed Matter and Materials Physics | en |
dc.relation.ispartofseries | 35 | en |
dc.relation.ispartofseries | 16 | en |
dc.rights | Y | en |
dc.subject | Physics | en |
dc.title | Magnetic properties of iron-rich Fe-Zr glasses | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/jcoey | |
dc.identifier.rssinternalid | 3989 | |
dc.identifier.uri | http://hdl.handle.net/2262/31667 | |