• Giant negative magnetoresistance of spin polarons in magnetic semiconductors–chromium-doped Ti2O3 thin films 

        Author(s):Wang, Zhenjun; Hong, Yuanjia; Tang, Jinke; Radu, Cosmin; Chen, Yuxi; Spinu, Leonard; Zhou, Weilie; Tung, Le Duc; Wang, Zhenjun; Hong, Yuanjia; Tang, Jinke; Radu, Cosmin; Chen, Yuxi; Spinu, Leonard; Zhou, Weilie; Tung, Le Duc
        Date:2005-02-18
        Epitaxial Cr-doped Ti2O3 films show giant negative magnetoresistance up to −365% at 2 K. The resistivity of the doped samples follows the behavior expected of spin (magnetic) polarons at low temperature. Namely, ρ=ρ0 exp(T0 ...