2004/09/15 by Jeffrey S. Dyck, J. S. Dyck, Č. Drašar +5 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Curie temperature #Ferromagnetism #Hall effect #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetic semiconductor #Magnetization #Materials science #Optics #Physics #Quantum mechanics #Scattering #Valence (chemistry) #ZnO doping and properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.71.115214
24 pages, 5 figures, submitted to PRB
arxiv created 2004/09/15 · openalex publication_date 2005/03/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on magnetic and electrical transport properties of Sb_2\ensuremath-xCrxTe3 single crystals with 0\ensuremath\leqslantx\ensuremath\leqslant0.095 over temperatures from 2\phantom\rule0.3em0exK to 300\phantom\rule0.3em0exK. A ferromagnetic state develops in these crystals at low temperatures with Curie temperatures that are proportional to x (for x>0.014), attaining a maximum value of 20\phantom\rule0.3em0exK for x=0.095. Hysteresis below TC for the applied field parallel to the c axis is observed in both magnetization and Hall-effect measurements. Magnetic as well as transport data indicate that Cr takes the 3+(3d3) valence state, substituting for antimony in the host lattice structure, and does not significantly affect the background hole concentration. Analysis of the anomalous Hall effect reveals that skew scattering is responsible for its presence. These results broaden the scope of ferromagnetism in the V2\text\ensuremath-VI3 diluted magnetic semiconductors (DMS) and in ferromagnetic DMS structures, generally.