Antiferromagnetism and Ferromagnetism in Layered 1T-CrSe2 with V and Ti replacements

D. C. FREITAS, M. NÚÑEZ, P. STROBEL, A. SULPICE, R. WEHT, A. A. ALIGIA, AND M. NÚÑEZ-REGUEIRO

PHYSICAL REVIEW B

AMER PHYSICAL SOC

Lugar: New York; Año: 2013 vol. 87 p. 14 - 420

1098-0121

e 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, xV = 0.5. With our experimental results and the help of first-principles calculations, we construct the phase diagram of the system.