Physical Sciences and Mathematics Commons^™

Band Structures, Magnetic Properties, And Enhanced Magnetoresistance In The High Pressure Phase Of Gd And Y Doped Two-Dimensional Perovskite Sr2coo4 Compounds, Xiaolin Wang, E Takayama-Muromachi, S X. Dou, Zhenxiang Cheng

Australian Institute for Innovative Materials - Papers

The authors present their studies on the band structures and on the magnetic and magnetotransport properties of the high pressure phase of Sr_2-xRE_xCoO₄ [rare earth (RE)=Gd and Y, x=0.1-0.5] compounds which were synthesized by a high pressure and high temperature technique. The authors found that as x increases, the magnetoresistance {(_PH-_P0)/p0} increases up to -17% at 5 K and 7 T, which is 2.5 times higher than that for undoped Sr₂CoO₄, although the ferromagnetic transition drops from 255 to 200 K for the Gd doping with x=0.3. …