Electronic and magnetic properties of cubic lave phase compounds
Band structure calculations and magnetic measurements were performed on RM2-based compounds, where R is a rare-earth or yttrium and M = Fe, Co or Ni. The exchange enhanced paramagnets as Y(CoxNi1-x)2, at T 10 K, show a T2 type dependence of magnetic susceptibilities. Above a char...
| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
D.Ghitu Institute of Electronic Engineering and Nanotechnologies
2005-01-01
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| Series: | Moldavian Journal of the Physical Sciences |
| Online Access: | https://mjps.nanotech.md/archive/2005/article/3061 |
| _version_ | 1818842465752317952 |
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| author | Burzo, Emil |
| author_facet | Burzo, Emil |
| author_sort | Burzo, Emil |
| collection | DOAJ |
| description | Band structure calculations and magnetic measurements were performed on RM2-based
compounds, where R is a rare-earth or yttrium and M = Fe, Co or Ni. The exchange enhanced
paramagnets as Y(CoxNi1-x)2, at T 10 K, show a T2
type dependence of magnetic
susceptibilities. Above a characteristic temperature, T*
, a Curie-Weiss behaviour was
evidenced. The computed mean square amplitude of spin fluctuations, at high temperatures,
describes well the experimentally determined effective moments. The transition of cobalt
atoms from nonmagnetic to magnetic state was analysed. A small nickel moment is induced
in RNi2 compounds with magnetic rare-earths. The exchange interactions influence little iron
moments. The different contributions to the R5d bands polarizations are also analyzed. |
| first_indexed | 2024-12-19T04:42:25Z |
| format | Article |
| id | doaj.art-3b49cbf11d7044d6bcdbb3f4900c0e00 |
| institution | Directory Open Access Journal |
| issn | 1810-648X 2537-6365 |
| language | English |
| last_indexed | 2024-12-19T04:42:25Z |
| publishDate | 2005-01-01 |
| publisher | D.Ghitu Institute of Electronic Engineering and Nanotechnologies |
| record_format | Article |
| series | Moldavian Journal of the Physical Sciences |
| spelling | doaj.art-3b49cbf11d7044d6bcdbb3f4900c0e002022-12-21T20:35:34ZengD.Ghitu Institute of Electronic Engineering and NanotechnologiesMoldavian Journal of the Physical Sciences1810-648X2537-63652005-01-014174853061Electronic and magnetic properties of cubic lave phase compoundsBurzo, EmilBand structure calculations and magnetic measurements were performed on RM2-based compounds, where R is a rare-earth or yttrium and M = Fe, Co or Ni. The exchange enhanced paramagnets as Y(CoxNi1-x)2, at T 10 K, show a T2 type dependence of magnetic susceptibilities. Above a characteristic temperature, T* , a Curie-Weiss behaviour was evidenced. The computed mean square amplitude of spin fluctuations, at high temperatures, describes well the experimentally determined effective moments. The transition of cobalt atoms from nonmagnetic to magnetic state was analysed. A small nickel moment is induced in RNi2 compounds with magnetic rare-earths. The exchange interactions influence little iron moments. The different contributions to the R5d bands polarizations are also analyzed.https://mjps.nanotech.md/archive/2005/article/3061 |
| spellingShingle | Burzo, Emil Electronic and magnetic properties of cubic lave phase compounds Moldavian Journal of the Physical Sciences |
| title | Electronic and magnetic properties of cubic lave phase compounds |
| title_full | Electronic and magnetic properties of cubic lave phase compounds |
| title_fullStr | Electronic and magnetic properties of cubic lave phase compounds |
| title_full_unstemmed | Electronic and magnetic properties of cubic lave phase compounds |
| title_short | Electronic and magnetic properties of cubic lave phase compounds |
| title_sort | electronic and magnetic properties of cubic lave phase compounds |
| url | https://mjps.nanotech.md/archive/2005/article/3061 |
| work_keys_str_mv | AT burzoemil electronicandmagneticpropertiesofcubiclavephasecompounds |