Disentangling the Mn moments on different sublattices in the half-metallic ferrimagnet Mn3−xCoxGa | Zendy

Peter Klaer | Zendy; Catherine Jenkins | Zendy; Vajiheh Alijani | Zendy; J. Winterlik | Zendy; Benjamin Balke | Zendy; Claudia Felser | Zendy; H. J. Elmers | Zendy

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Disentangling the Mn moments on different sublattices in the half-metallic ferrimagnet Mn3−xCoxGa

Author(s) -

Peter Klaer,

Catherine Jenkins,

Vajiheh Alijani,

J. Winterlik,

Benjamin Balke,

Claudia Felser,

H. J. Elmers

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3592802

Subject(s) - ferrimagnetism , condensed matter physics , tetragonal crystal system , magnetization , magnetic moment , magnetic circular dichroism , spin polarization , fermi level , formula unit , chemistry , spin (aerodynamics) , metal , materials science , crystallography , physics , crystal structure , magnetic field , spectral line , quantum mechanics , electron , organic chemistry , thermodynamics

Ferrimagnetic Mn3-xCoxGa compounds have been investigated by magnetic circular dichroism in x-ray absorption (XMCD). Compounds with x>0.5 crystallize in the CuHg2Ti structure. A tetragonal distortion of the cubic structure occurs for x <= 0.5. For the cubic phase, magnetometry reveals a linearly increasing magnetization of 2x Bohr magnetons per formula unit obeying the generalized Slater-Pauling rule. XMCD confirms the ferrimagnetic character with Mn atoms occupying two different sublattices with antiparallel spin orientation and different degrees of spin localization and identifies the region 0.6

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