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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Burzo, Emil
Formato: article
Lenguaje:EN
Publicado: D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2005
Materias:
Acceso en línea:https://doaj.org/article/3b49cbf11d7044d6bcdbb3f4900c0e00
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:3b49cbf11d7044d6bcdbb3f4900c0e00
record_format dspace
spelling oai:doaj.org-article:3b49cbf11d7044d6bcdbb3f4900c0e002021-11-21T12:13:25ZElectronic and magnetic properties of cubic lave phase compounds2537-63651810-648Xhttps://doaj.org/article/3b49cbf11d7044d6bcdbb3f4900c0e002005-01-01T00:00:00Zhttps://mjps.nanotech.md/archive/2005/article/3061https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365Band 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.Burzo, EmilD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 4, Iss 1, Pp 74-85 (2005)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
Electronics
TK7800-8360
spellingShingle Physics
QC1-999
Electronics
TK7800-8360
Burzo, Emil
Electronic and magnetic properties of cubic lave phase compounds
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.
format article
author Burzo, Emil
author_facet Burzo, Emil
author_sort Burzo, Emil
title Electronic and magnetic properties of cubic lave phase compounds
title_short 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_sort electronic and magnetic properties of cubic lave phase compounds
publisher D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate 2005
url https://doaj.org/article/3b49cbf11d7044d6bcdbb3f4900c0e00
work_keys_str_mv AT burzoemil electronicandmagneticpropertiesofcubiclavephasecompounds
_version_ 1718419116787761152