Spin-glass-like behaviour in Ni2InVO6

Magnetic Spin Clusters in Ni2InVO6

“…On the other hand the calculated value of Curie-Weiss temperature (50-80 K, depending on magnetic field) was substantially higher than in Ref. [5] (5 K). In stronger applied magnetic fields the value of Curie-Weiss temperature gets bigger (stronger FM short-range interaction).…”

“…Thus stronger FM interaction and a smaller effective moment are obtained from our dc magnetisation measurements in comparison to Ref. [5] data. Increase of FM short-range interaction and concurrently the decrease of the effective magnetic moment with the increase of an applied magnetic field indicate that the spin system of Ni 2 InVO 6 is formed not only by separate paramagnetic spins but encompasses also dimers and clusters of spins with FM and AFM short-range interactions.…”

“…[12] The effective magnetic moment of formula unit (containing two magnetic Ni 2 + ions) calculated from the Curie constant was in the range 3.1-3.8 μ B (depending on external magnetic field), what is significantly smaller than in Ref. [5] (∼ 5 μ B ). In stronger applied magnetic fields the effective magnetic moment gets smaller.…”

“…[4] Gron et al have investigated the magnetic properties of Ni 2 InVO 6 by ac magnetic susceptibility and specific heat studies. [5] It has been found that the compound shows the spin-glass-like behaviour below the freezing temperature T f = 5 K. Positive value of the paramagnetic Curie-Weiss temperature indicated ferromagnetic (FM) short-range interaction in paramagnetic (PA) phase. The presence of antiferromagnetic (AFM) correlations in Ni 2 InVO 6 was suggested by the shift of the maxima toward lower temperatures in the specific heat C(T) or C(T)/T data during the magnetic field increase.…”

“…DC magnetisation study will be expanded in comparison with the previous work (Ref. [5] ). Both used complementary methods of studying magnetic properties would provide a more comprehensive picture of magnetism in Ni 2 InVO 6 .…”