Variations of magnetic properties of UH3with modified structure and composition
p. 185-192
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2017
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oai:112.137.131.14:VNU_123-582382017-09-30T20:43:33Z Variations of magnetic properties of UH3with modified structure and composition M. Paukov L.Havela N.-T.H. Kim-Ngan V. Buturlim I. Tkach D. Drozdenko S. Maskova S. Sowa Z. Molcanova M. Mihalik M. Krupska Hydrides Uranium alloys Ferromagnetism p. 185-192 UH3 based hydrides with modified structure and composition can be prepared using high H2pressures from precursors in the form of rapidly cooled uranium alloys. While the alloys with a-U structure lead to theb-UH3 type of hydrides,g-U alloys (bcc) lead either toa-UH3hydride type or nanocrystallineb-UH3. The nanocrystallineb-UH3structure, appearing for Mo alloying, can accommodate in addition numerous otherd-metal components, as Ti, Zr, Fe, Nb. The pure Mo alloyed hydrides (UH3)1-xMox exhibit increasing Curie temperature TC with maximum exceeding 200 K forx¼0.12e0.15. Other components added reduce the TC increment with respect to pure UH3 (170 K). Also alloying by Zr gives a weaker enhancement. Seen globally, the TC variations are rather modest, which reflects the prominence of interaction of U with H. It is suggested that important ingredient is a charge transfer, depopulating the U-6dand 7sstates, while the 5f band stays at the Fermi level 2017-08-24T07:36:23Z 2017-08-24T07:36:23Z 2016 Article 2468-2284 http://repository.vnu.edu.vn/handle/VNU_123/58238 en application/pdf ĐHQGHN |
| institution |
Vietnam National University, Hanoi |
| building |
VNU Library & Information Center |
| country |
Vietnam |
| collection |
VNU Digital Repository |
| language |
English |
| topic |
Hydrides Uranium alloys Ferromagnetism |
| spellingShingle |
Hydrides Uranium alloys Ferromagnetism M. Paukov L.Havela N.-T.H. Kim-Ngan V. Buturlim I. Tkach D. Drozdenko S. Maskova S. Sowa Z. Molcanova M. Mihalik M. Krupska Variations of magnetic properties of UH3with modified structure and composition |
| description |
p. 185-192 |
| format |
Article |
| author |
M. Paukov L.Havela N.-T.H. Kim-Ngan V. Buturlim I. Tkach D. Drozdenko S. Maskova S. Sowa Z. Molcanova M. Mihalik M. Krupska |
| author_facet |
M. Paukov L.Havela N.-T.H. Kim-Ngan V. Buturlim I. Tkach D. Drozdenko S. Maskova S. Sowa Z. Molcanova M. Mihalik M. Krupska |
| author_sort |
M. Paukov |
| title |
Variations of magnetic properties of UH3with modified structure and composition |
| title_short |
Variations of magnetic properties of UH3with modified structure and composition |
| title_full |
Variations of magnetic properties of UH3with modified structure and composition |
| title_fullStr |
Variations of magnetic properties of UH3with modified structure and composition |
| title_full_unstemmed |
Variations of magnetic properties of UH3with modified structure and composition |
| title_sort |
variations of magnetic properties of uh3with modified structure and composition |
| publisher |
ĐHQGHN |
| publishDate |
2017 |
| url |
http://repository.vnu.edu.vn/handle/VNU_123/58238 |
| _version_ |
1680965177891094528 |