Antiferromagnetism and ferromagnetism in layered 1T-CrSe2 with V and Ti replacements

FREITAS, D.C.; NUÑEZ, M.; P. STROBELBEL, P.; SULPICE, A.; RUBEN WEHT; ALIGIA, A.; M. NUÑEZ REGUEIRO

PHYSICAL REVIEW B

AMER PHYSICAL SOC

Lugar: New York; Año: 2013 vol. 87 p. 44201 - 44209

1098-0121

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 order up to our highest doping, x_V=0.5. With our experimental results and the help of first-principles calculations, we construct the phase diagram of the system.