Transport properties of the new perovskite-type LaVO3⇔xNx Oxynitrides

Antoine, P.; Assabaa, R.; L'Haridon, P.; Marchand, R.; Laurent, Y.; Michel, C.; Raveau, B.

doi:10.1016/0921-5107(89)90304-8

Cited by 41 publications

(10 citation statements)

References 12 publications

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“…23)), outweighs the introduction of nitride which is larger than oxide. A similar dependence on the nitrogen contents was observed by Marchand et al for the vanadium compound 14 and the same has been found in the solid solutions EuMO 2Àx N 1+x (M ¼ Nb, Ta, W). 3…”

Section: Resultssupporting

confidence: 86%

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Synthesis, anion order and magnetic properties of RVO3−xNx perovskites (R = La, Pr, Nd; 0 ≤ x ≤ 1)

et al. 2014

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Section: Resultssupporting

confidence: 86%

“…13 The substitution of oxygen by nitrogen in the perovskites RVO 3 also induces the oxidation of V 3+ to V 4+ . The transport properties of LaVO 3Àx N x as investigated by Marchand et al 14 indicated different behaviour compared to that of cation doped materials, as a metalinsulator transition was not observed up to x ¼ 0.9.…”

Section: Introductionmentioning

confidence: 95%

Synthesis, anion order and magnetic properties of RVO3−xNx perovskites (R = La, Pr, Nd; 0 ≤ x ≤ 1)

et al. 2014

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“…Further, the impact of oxygen composition on the structure and properties of LVO are studied. 15,16 These studies also show that such changes intricately modify its behavior.…”

mentioning

confidence: 83%

Effect of vanadium deficiency on properties of polycrystalline LaVO3

Gharetape

Singh

Razavi

et al. 2011

Applied Physics Letters

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We report the influence of V deficiency on structure, transport, and magnetic properties of polycrystalline LaVO 3 . Up to 10% V-deficient samples were synthesized using standard solid state chemistry route. Structural and spectroscopic studies show that it intricately modifies lattice parameters and oxidation states of V. Further temperature dependent resistivity data reveal that V deficiency induces an enhancement in the resistivity and activation energy. The paramagnetic moment of these samples depends on net V composition while all samples exhibit a paramagnetic-to-antiferromagnetic transition at about 140 K. These distinct properties are understood owing to the presence of multiple oxidations states of V, predominantly V 3+ and V 4+ , in nonstoichiometric LaVO 3 .

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“…3,6,7 Cubic perovskite SrMoO 3 ͑d 2 ͒ exhibits high charge carrier density and optical transparency in the ultraviolet region. 8,9 Therefore, this transparent oxide is a potential candidate for diverse applications, including solar cells.…”

Section: Introductionmentioning

confidence: 99%

On the magnetism, thermal- and electrical transport of SrMoO2N

Logvinovich

Hejtmánek

Knı́žek

et al. 2009

Journal of Applied Physics

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Physical properties of perovskite-type SrMoO2N phases were studied in the temperature range of 3 K<T<300 K. The oxynitride crystallizes in a cubic unit cell (space group Pm3¯m) as revealed by neutron and x-ray diffraction measurements. The polycrystalline material shows weakly temperature dependent electrical resistivity and low glasslike heat conductivity, both reflecting the unusual strength of the scattering processes in the charge carrier transport. Based on the positive Seebeck coefficient values, holes are identified as the dominating charge carriers in SrMoO2N. Down to 150 K, the magnetic susceptibility is temperature independent and explained as enhanced Pauli paramagnetism (χ∼10−4 emu mol−1 Oe−1). The absolute value of its magnetic susceptibility is, however, half of that for SrMoO3. Simultaneously, the lower Sommerfeld coefficient γ measured for the oxynitride confirms the lower density of states near the Fermi level for SrMoO2N compared to SrMoO3. At low temperature, both SrMoO2N and SrMoO3 show Curie paramagnetism superimposed to the temperature independent Pauli paramagnetism and an anomaly at T=54 K. This anomaly is attributed to the presence of molecular oxygen in the material, while the Curie upturn is likely associated with a small amount of paramagnetic centers.

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Transport properties of the new perovskite-type LaVO3⇔xNx Oxynitrides

Cited by 41 publications

References 12 publications

Synthesis, anion order and magnetic properties of RVO3−xNx perovskites (R = La, Pr, Nd; 0 ≤ x ≤ 1)

Synthesis, anion order and magnetic properties of RVO3−xNx perovskites (R = La, Pr, Nd; 0 ≤ x ≤ 1)

Effect of vanadium deficiency on properties of polycrystalline LaVO3

On the magnetism, thermal- and electrical transport of SrMoO2N

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