Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2

We present a systematic study of the stability of the collinear and noncollinear magnetic states of R Mn2 Ge2 (R=Y,Ca) compounds as a function of the lattice parameter so as to simulate alloying with La, using density-functional theory calculations. The results allow us to discriminate between chemi...

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Autores principales: Di Napoli, Solange, Llois, Ana María
Publicado: 2007
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v75_n10_p_DiNapoli
http://hdl.handle.net/20.500.12110/paper_10980121_v75_n10_p_DiNapoli
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_10980121_v75_n10_p_DiNapoli
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spelling paper:paper_10980121_v75_n10_p_DiNapoli2025-07-30T18:43:25Z Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2 Di Napoli, Solange Llois, Ana María We present a systematic study of the stability of the collinear and noncollinear magnetic states of R Mn2 Ge2 (R=Y,Ca) compounds as a function of the lattice parameter so as to simulate alloying with La, using density-functional theory calculations. The results allow us to discriminate between chemical and structural factors that determine the magnetic properties of these systems. We find that, to a large extent, the magnetic moments are determined by the interatomic Mn-Mn distance, given by the size of the substitutional atom. We also find that the different magnetic structures appearing along the phase diagrams are to be mainly ascribed to the interstitial electronic density related to the divalent or trivalent character of the R atom. © 2007 The American Physical Society. Fil:Di Napoli, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Llois, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v75_n10_p_DiNapoli http://hdl.handle.net/20.500.12110/paper_10980121_v75_n10_p_DiNapoli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We present a systematic study of the stability of the collinear and noncollinear magnetic states of R Mn2 Ge2 (R=Y,Ca) compounds as a function of the lattice parameter so as to simulate alloying with La, using density-functional theory calculations. The results allow us to discriminate between chemical and structural factors that determine the magnetic properties of these systems. We find that, to a large extent, the magnetic moments are determined by the interatomic Mn-Mn distance, given by the size of the substitutional atom. We also find that the different magnetic structures appearing along the phase diagrams are to be mainly ascribed to the interstitial electronic density related to the divalent or trivalent character of the R atom. © 2007 The American Physical Society.
author Di Napoli, Solange
Llois, Ana María
spellingShingle Di Napoli, Solange
Llois, Ana María
Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2
author_facet Di Napoli, Solange
Llois, Ana María
author_sort Di Napoli, Solange
title Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2
title_short Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2
title_full Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2
title_fullStr Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2
title_full_unstemmed Magnetic order in R Mn2 Ge2 (R=Y,Ca) compounds and their solid solutions with la Mn2 Ge2
title_sort magnetic order in r mn2 ge2 (r=y,ca) compounds and their solid solutions with la mn2 ge2
publishDate 2007
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v75_n10_p_DiNapoli
http://hdl.handle.net/20.500.12110/paper_10980121_v75_n10_p_DiNapoli
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