Spin Glass ground state in Mn\(_{1-x}\)Co\(_{x}\)Si

Spin Glass ground state in Mn\(_{1-x}\)Co\(_{x}\)Si

We report the discovery of a new spin glass ground state in the transition metal monosilicides with the B20 crystallographic structure. Magnetic, transport, neutron and muon investigation of the solid solution Mn\(_{1-x}\)Co\(_{x}\)Si have revealed a new dome in the phase diagram with evidence of an...

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Veröffentlicht in:arXiv.org 2010-04
Hauptverfasser: Teyssier, J, Giannini, E, Guritanu, V, Viennois, R, van der Marel, D, Amato, A, Gvasaliya, S N
Format: Artikel
Sprache:eng
Schlagworte:
Antiferromagnetism
Conduction electrons
Crystal structure
Crystallography
Curie temperature
Doping
Elastic scattering
Ground state
Magnetic moments
Magnetism
Organic chemistry
Phase diagrams
Physics - Materials Science
Solid solutions
Spin glasses
Transition metals
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Zusammenfassung:We report the discovery of a new spin glass ground state in the transition metal monosilicides with the B20 crystallographic structure. Magnetic, transport, neutron and muon investigation of the solid solution Mn\(_{1-x}\)Co\(_{x}\)Si have revealed a new dome in the phase diagram with evidence of antiferromagnetic interactions. For Mn rich compounds, a sharp decrease of the Curie temperature is observed upon Co doping and neutron elastic scattering shows that helimagnetic order of MnSi persists up to \(x=0.05\) with a shortening of the helix period. For higher Co (\(0.05
ISSN:2331-8422
DOI:10.48550/arxiv.1004.5182