Antiferromagnetism and ferromagnetism in layered 1T-CrSe_2 with V and Ti replacements

DANIELE C. FREITAS; NUÑEZ, MATIAS; PIERRE STROBEL; PIERRE STROBEL; RUBEN WEHT; ARMANDO A. ALIGIA; MANUEL NUNEZ-REGUEIRO

PHYSICAL REVIEW B - CONDENSED MATTER AND MATERIALS PHYSICS

american physical society

Año: 2013 p. 144201 - 144209

0163-1829

We have studied the effect of substitution of Cr in metastable 1T -CrSe2 by Ti and V on its structural and magnetic properties. The structural transitions observed between 165-180 K in the pure material are stomped by the doping. The pure compound has a magnetization corresponding to an antiferromagnetic (AF) ground state. On Ti substitution, we observe an increase of the lattice constants and a gradual passage towards a ferromagnetic state. While V replacement maintains AF up our highest doping, xV =0.5. With our experimental results and the help of first principles calculations we construct the phase diagram of the system.