Crystal structure, short range and long range magnetic ordering in CuSb2O6

Torque magnetometry study of magnetically ordered state and spin reorientation in the quasi-one-dimensionalS=12Heisenberg antiferromagnetCuSb2O6Herak1, Žilić2, Čalogović3 et al. 2015Phys. Rev. B9040View full textAdd to dashboardCite

“…The crystal was glued onto a glass fiber and the data were collected on an Oxford Diffraction Xcalibur 3 CCD diffractometer with graphite-monochromated Mo K α radiation (λ = 0.71073 Å) at room temperature. The orientation of (7) • , in good agreement with previously published data [1]. Presence of multiple twins, reported by other authors [2][3][4][12][13][14], was also observed in our data.…”

“…Our analysis of the interplay of crystal structure and magnetic anisotropy of different crystallographic twins realized in CuSb 2 O 6 in combination with our torque measurements puts forward a possibility to reconcile different reports of the ground state magnetic structure of this system. CuSb 2 O 6 crystallizes in monoclinically distorted trirutile structure type [1] at room temperature. Below 380 K a second order phase transition takes place from high-temperature tetragonal α−CuSb 2 O 6 (space group P4 2 /nmn) to monoclinic β−CuSb 2 O 6 (space group P2 1 /n) [2,3].…”

Quasi-One-Dimensional Magnetism Driven by Unusual Orbital Ordering inCuSb2O6

“…The magnetic cation sublattice is that of the K 2 NiF 4 structure type, which includes many classic examples of square lattices exhibiting 2D antiferromagnetism (AFM), for instance the above mentioned La 2 CuO 4 . Surprisingly, susceptibility measurements done on both powder and single crystal samples of CuSb 2 O 6 fit extremly well over a large temperature range to a nearest-neighbor-only S = 1 2 Heisenberg 1D model with an exchange constant ranging from -86 K to -98 K. [10,12,13,14,15,16,17] Furthermore, all low temperature susceptibility measurements show a sharp drop at 8.5K [10,12,13,14,15,16], due to the onset of long range AFM ordering. [14,15,16] Thus, the contrast of the 2D lattice and the 1D magnetic behavior in CuSb 2 O 6 has been puzzling up to now.…”

“…The compound is green in color [9,10], indicating insulating behavior with a gap size typical for cuprates. Although the compound undergoes a second order phase transition below 380 K from a tetragonal to a monoclinically distorted structure, [11] this quasioctahedral local environment is basically unchanged.…”

Advanced SnO2-Based Ceramics: Synthesis, Structure, Properties

“…In fact, the magnetic cation sublattice is the same as that of the K 2 NiF 4 structure, which is the canonical example of a square lattice two-two-dimensional antiferomagnet. Nakua established that CuSb 2 O 6 compound shows the clearest evidence for the dominance of one-dimensional correlations www.intechopen.com in the short range ordered regime with the magnetic susceptibility value χ g,293K =3,7.10 -6 cm3/g [Nakua et al, 1991]. Paramagnetic moment values of 1.5, respectively, 1.9 (B.M.)…”