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RESEARCH PRODUCT

Effect of structural and compositional inhomogeneities on spin-glass transition in Hg1−x−yCrxMnySe crystals

V. MuñozS.yu. ParanchychI. Yu. ReshidovaN. V. SochinskiiM.d. AndriychukCandid Reig

subject

Spin glassScanning electron microscopeChemistryTransition temperatureAnalytical chemistryCrystal structureMagnetic semiconductorCondensed Matter PhysicsMagnetic susceptibilityInorganic ChemistryNuclear magnetic resonanceMaterials ChemistryGlass transitionSaturation (magnetic)

description

Abstract We report experimental results on the growth of Hg 1 −x−y Cr x Mn y Se crystals and their magnetic susceptibility χ ( T ) in dependence on the crystal structure and composition. It was found that the crystals with the Mn composition y =0.01–0.08 exhibit the spin-glass transition temperature T g =100–110 K. An increase of y value leads to the saturation of the χ max and T g characteristics in the composition ranges of y >0.06 and y >0.02, respectively. This phenomenon is explained as a result of phase-separated magnetic behavior caused by the formation of HgCr 2 Se 4 inclusions and textures.

https://doi.org/10.1016/j.jcrysgro.2003.10.057