Structure, magnetic and transport properties of La1−xBixMnO3

Zhao, Yong; Park, Jonghyurk; Jung, Ranju; Noh, Hun-Hee; Oh, S.‐J.

doi:10.1016/j.jmmm.2004.06.024

Cited by 52 publications

(42 citation statements)

References 38 publications

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“…This result is in a good agreement with [8]. All samples crystallize in the rhombohedral perovskite structure with a trigonal unit cell (S.G. R-3c), this is in a good agreement with [9] (Tables 1-2). (4) For a detailed microstructural characterization by transmission electron microscopy, the La 0.8 Bi 0.2 MnO 3.15 composition obtained using the solid-state synthesis was chosen.…”

Section: Resultssupporting

confidence: 79%

Crystal Structure and Characterization of La_1-xBi_xMnO_3+δ

et al. 2015

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The La 1-x Bi x MnO 3+δ (x=0.0-0.5) solid solutions were synthesized using three different methods: solid-state synthesis, citrate-nitrate combustion synthesis. All compositions crystallize in a rhombohedral perovskite structure, independent of the synthesis method. Two ranges with linear temperature dependence of the unit cell parameters have been observed during in-situ heating Xray powder diffraction experiments. The transition between the two ranges occurs at 730°C and is explained by chemical expansion at high temperatures. The chemical compatibility between the obtained solid solutions and bismuth-containing electrolytes (Bi 4 V 1.7 Fe 0.3 O 11 , Bi 13 Mo 5 O 34 and Bi 3 Nb 0.8 W 0.2 O 7.1 ) was studied. Interaction between these materials has been observed at temperatures higher than 600°С. ExperimentalThe La 1-x Bi x MnO 3+δ (x=0.0-0.5; Δх=0.1) samples were synthesized via a solid-state route and a citrate-nitrate combustion method. For the solid-state synthesis, Bi 2 O 3 (99.9%), Mn 2 O 3 and La 2 O 3 (LaO-D) were used as initial compounds. Mn 2 O 3 was prepared by annealing MnO 2 (>85% purity) at 750°C. La 2 O 3 is highly hydroscopic so it was weighed immediately after annealing at 1000°C. The stoichiometric mixtures of the initial compounds were placed in the alumina crucibles and annealed in air in the temperature range T = 600-1200°С with intermediate cooling and regrinding in an agate mortar after each step of 100°С. For the citrate-nitrate combustion method, the initial metal oxides were dissolved separately in diluted nitric acid. Mn 2 O 3 was dissolved with adding small amount oxalic acid. Then as-prepared solutions were mixed with the ratio 1 : 2 (number of metal atoms : citric acid). Subsequent evaporation was performed at 80°C for 5 hours leading to the formation of solid precursors. The obtained precursors were annealed at 600°С and 1100°С (x=0.1-0.5) and 1200°С (x=0.0). Bismuth-containing electrolytes Bi 4 V 1.7 Fe 0.3 O 11 , Bi 13 Mo 5 O 34 and Bi 3 Nb 0.8 W 0.2 O 7.1 were synthesized using the solid-state method described elsewhere (1-3) to study their chemical compatibility with La 1-x Bi x MnO 3+δ electrodes.X-ray powder diffraction (XRD) patterns were collected using CuK α radiation on a D8 ADVANCE diffractometer equipped with a VÅNTEC position-sensitive detector and 10.1149/06801.0977ecst ©The Electrochemical Society ECS Transactions, 68 (1) 977-985 (2015) 977 ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 139.80.123.42 Downloaded on 2015-07-23 to IP

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Section: Resultssupporting

confidence: 79%

Crystal Structure and Characterization of La_1-xBi_xMnO_3+δ

et al. 2015

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“…In fact, a similar type of behavior was reported in the case of nonstoichiometric and Bi-doped La manganites [16,17], and low doped manganites [18][19][20]. Another interesting feature of this material is that under the influence of high magnetic field (5 T), T min weekend considerably (Fig.…”

Section: Electrical Transitionssupporting

confidence: 75%

Electrical behavior of some silver-doped lanthanum-based CMR materials

Lakshmi

Reddy

2009

Journal of Magnetism and Magnetic Materials

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“…For x = 0.5, a cluster-glass magnetic phase has been reported by Zhao et al 8 who described this property due to the presence of magnetic clusters, hence to lack of good ferromagnetism. Based on previous studies of the ferromagnetism induced by nickel and cobalt substitution in LaMnO 3 9-11 and bearing in mind the results obtained for …”

Section: Introductionmentioning

confidence: 84%

“…x Bi x MnO 3+δ 7,8 are attractive, since they remain ferromagnetic up to x = 0.5, with a ferromagnetic curie temperature (T C ) of 80 K i.e. close to that of BiMnO 3 (T C ~ 100 K) and can be prepared at normal pressure compared to the latter.…”

Section: Introductionmentioning

confidence: 99%

Contents and Chemical Science

2007

J. Mater. Chem.

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The substitution of cobalt and nickel for manganese in the perovskite manganate LaBiMn 2 O 6+δ has been realized, leading to the perovskites LaBiMn 2-M x O 6+δ , with M = Co, Ni and 0 ≤ x ≤ 2/3. In contrast to the literature those phases are found to be orthorhombic with Pnma symmetry. More importantly, it is shown that ferromagnetism is enhanced, T C being increased from 80 K for the parent compound (x = 0) to 97 K for Ni-phase, and to 130 K for the Co-phase. Moreover, a strong competition between ferromagnetism and a glassy-ferromagnetic state in the case of nickel or a spin-glass behaviour in the case of cobalt is observed. These phenomena are interpreted in the frame of a phase separation scenario, where the ferromagnetic

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Structure, magnetic and transport properties of La1−xBixMnO3

Cited by 52 publications

References 38 publications

Crystal Structure and Characterization of La_1-xBi_xMnO_3+δ

Crystal Structure and Characterization of La_1-xBi_xMnO_3+δ

Electrical behavior of some silver-doped lanthanum-based CMR materials

Contents and Chemical Science

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Structure, magnetic and transport properties of La1−xBixMnO3

Cited by 52 publications

References 38 publications

Crystal Structure and Characterization of La1-xBixMnO3+δ

Crystal Structure and Characterization of La1-xBixMnO3+δ

Electrical behavior of some silver-doped lanthanum-based CMR materials

Contents and Chemical Science

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Crystal Structure and Characterization of La_1-xBi_xMnO_3+δ

Crystal Structure and Characterization of La_1-xBi_xMnO_3+δ