2014
DOI: 10.1103/physrevb.89.014423
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Strongly correlated one-dimensional magnetic behavior ofNiTa2O6

Abstract: The magnetic properties of NiTa2O6 were investigated by magnetic susceptibility, specific heat, electron paramagnetic resonance, neutron powder diffraction and pulse field magnetization measurements. Accompanying ab initio DFT calculations of the spin-exchange constants complemented and supported our experimental findings that NiTa2O6 must be described as a quasi-1D Heisenberg S = 1 spin chain system with a nearest-neighbor only anti-ferromagnetic spin-exchange interaction of 18.92(2) K. Inter-chain coupling i… Show more

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Cited by 29 publications
(30 citation statements)
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“…The observations above have implications for the expected magnetic properties, as the Ni sublattice will be essentially identical to that for NiTa 2 O 6 , i.e. body-centred tetragonal, a topology which is known to give rise to a type of interlayer geometric frustration [21,22].…”
Section: Structural Determinationmentioning
confidence: 89%
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“…The observations above have implications for the expected magnetic properties, as the Ni sublattice will be essentially identical to that for NiTa 2 O 6 , i.e. body-centred tetragonal, a topology which is known to give rise to a type of interlayer geometric frustration [21,22].…”
Section: Structural Determinationmentioning
confidence: 89%
“…These results are very similar to those for the related tri-rutile phase NaTa 2 O 6 [21] and, given given that the Ni sublattices of this phase and NiNb 2 O 6 are essentially identical, this is not surprising. Data for the tantalate material have been fitted to various short range models including a S = 1 square planar [23], a S = 1 2 Ising[21] and a S = 1 Heisenberg chain [22]. The solid line in Figure 5 is a fit to the square lattice S = 1 model of Rushbrooke and Wood [24] which yields G = 2.29(7) and J/k B = -5.26(3) K.…”
Section: Magnetometrymentioning
confidence: 99%
“…The magnetic susceptibility χ of these compounds also exhibits behavior expected for one-dimensional spin-chain systems, 8,11,14,16 with broad peaks in χ above T N .…”
mentioning
confidence: 78%
“…13,14 In the case of CuSb 2 O 6 , orbital order is believed to promote antiparallel ordering of the magnetic moments along the [110] direction at z = 0 and the [110] direction at z = 1/2, which is commonly referred to as the two-sublattice antiferromagnetic structure. Spinexchange constants of NiTa 2 O 6 , obtained 14 from density functional theory (DFT), exhibit a dominant antiferromagnetic exchange along the same structural diagonals as CuSb 2 O 6 . In contrast, MnSb 2 O 6 (trigonal crystal structure) possesses a cycloidal magnetic structure, where all spin-exchange constants are of similar magnitude.…”
Section: Introductionmentioning
confidence: 99%
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