Negative thermal expansion property of Er0.7Sr0.3NiO3−δ

Fu, Linjie; Chao, Mingju; Chen, He; Liu, Xiansheng; Liu, Yaming; Yu, Jumei; Liang, Erjun; Liu, Yucheng; Xiao, Xiao

doi:10.1016/j.physleta.2014.04.040

Cited by 14 publications

(4 citation statements)

References 23 publications

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“…Similar behavior has been reported for SrCu 3 Fe 4 O 12 in the temperature window of 200–350 K . Linjie et al assigned a similar phenomenon to a decrease in the degree of distortion due to structural phase transition, which results in a decrease in the metal–oxygen (M-O) distances in the broad temperature window.…”

Section: Resultssupporting

confidence: 71%

“…Moreover, in the same Regarding the reason for the observed NTE behavior, Kimber et al 38 linked the origin of the NTE phenomena with Pr and Fe magnetic orderings in the PrFeAsO sample. Similar behavior has been reported for SrCu 3 Fe 4 O 12 in the temperature window of 200−350 K. 39 Linjie et al 40 assigned a similar phenomenon to a decrease in the degree of distortion due to structural phase transition, which results in a decrease in the metal−oxygen (M-O) distances in the broad temperature window.…”

Section: Structural Properties Viasupporting

confidence: 71%

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Unusual Lattice Dilation and Strong Electron–Phonon Coupling in Erbium Ferrite Perovskite

Warshi,

Gautam,

Kumar

et al. 2024

J. Phys. Chem. C

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Most materials in Nature expand when heated, and very limited materials show the opposite behavior, i.e., negative thermal expansion (NTE). Here, we observed that NTE is associated with the rarely occurring Fano antiresonance in Raman spectroscopy and investigated the role of electron–phonon coupling on the negative thermal expansion observed in the multiferroic ErFeO3 perovskite; for this purpose, the temperature-dependent synchrotron-based X-ray diffraction and Raman scattering experiments were carried out in the temperature range 80–300 K. The occurrence of NTE was also confirmed via the strain gauge measurement technique. A one-to-one correlation between strong electron–phonon coupling, as reflected in the Fano antiresonance in Raman spectra, with q ≈ 0, and the geometrical rotation of the Fe–O–Fe bond angle that has been observed. It has been demonstrated that the NTE is controlled by the strong temperature dependence of electron–phonon coupling in the prepared ErFeO3 sample. The present report may provide a new strategy for manipulating NTE behaviors by tuning the electron–phonon coupling.

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Section: Resultssupporting

confidence: 71%

Section: Structural Properties Viasupporting

confidence: 71%

Unusual Lattice Dilation and Strong Electron–Phonon Coupling in Erbium Ferrite Perovskite

Warshi,

Gautam,

Kumar

et al. 2024

J. Phys. Chem. C

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“…Reversible abrupt dimensional changes in oxide materials on temperature cycling oen originate from the temperatureinduced phase and structural transitions. For nickel-based oxides, relevant examples of such behavior include Er 0.3 Sr 0.7 NiO 3Àd , 40 Nd 1Àx Eu x NiO 3 41 and BiNiO 3 . 42 However, as mentioned above, thermal analysis did not reveal any thermal events in DSC curves of Nd 2Àx Sr x NiO 4Àd ceramic samples.…”

Section: Thermochemical Expansionmentioning

confidence: 99%

High-temperature characterization of oxygen-deficient K₂NiF₄-type Nd_2−xSr_xNiO_4−δ (x = 1.0–1.6) for potential SOFC/SOEC applications

et al. 2015

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“…A large number of LaMnO 3 compounds have attracted extensive ferroelectric [17][18][19][20], temperature compensation [21][22][23][24] and other physical properties. Some members of this group of compounds have great potential applications, including magneto-thermal effects at room temperature [25][26][27][28] and thermal expansion properties [29,30]. They are attractive because their phase change diagrams are complex.…”

Section: Introductionmentioning

confidence: 99%

"The Negative Thermal Expansion Property of NdNnO3 Based on Pores Effect and Phase Transition"

Li¹

2022

BJSTR

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A novel negative thermal expansion (NTE) material NdMnO3 was synthesized by solid-state method at 1523 K. The crystal structure, phase transition and negative expansion properties of NdMnO3 were investigated by variable temperature X-ray diffraction (XRD), scanning electron microscope (SEM) and variable temperature Raman spectra. The experimental results show that the compound adopts the orderly O' phase crystal structure between room temperature and 1023 K, which transforms to the disordered O phase above 1023 K. NdMnO3 compound underwent a Jahn-Teller distortion from the orbitally ordered О' phase to the orbitally disordered O phase. The compound exhibits NTE properties in the orderly O' phase crystal structure. When the temperature is from 293 to 759 K, the ceramic NdMnO3 shows negative thermal expansion of -4.7×10-6 /K. As temperature increases, the ceramic NdMnO3 presents NTE property range from 759 to 1007 K. the average linear expansion coefficient is -18.88×10-6 /K. The physical mechanism of NTE is discussed and clarified through experiments.

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Negative thermal expansion property of Er0.7Sr0.3NiO3−δ

Cited by 14 publications

References 23 publications

Unusual Lattice Dilation and Strong Electron–Phonon Coupling in Erbium Ferrite Perovskite

Unusual Lattice Dilation and Strong Electron–Phonon Coupling in Erbium Ferrite Perovskite

High-temperature characterization of oxygen-deficient K₂NiF₄-type Nd_2−xSr_xNiO_4−δ (x = 1.0–1.6) for potential SOFC/SOEC applications

"The Negative Thermal Expansion Property of NdNnO3 Based on Pores Effect and Phase Transition"

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Negative thermal expansion property of Er0.7Sr0.3NiO3−δ

Cited by 14 publications

References 23 publications

Unusual Lattice Dilation and Strong Electron–Phonon Coupling in Erbium Ferrite Perovskite

Unusual Lattice Dilation and Strong Electron–Phonon Coupling in Erbium Ferrite Perovskite

High-temperature characterization of oxygen-deficient K2NiF4-type Nd2−xSrxNiO4−δ (x = 1.0–1.6) for potential SOFC/SOEC applications

"The Negative Thermal Expansion Property of NdNnO3 Based on Pores Effect and Phase Transition"

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High-temperature characterization of oxygen-deficient K₂NiF₄-type Nd_2−xSr_xNiO_4−δ (x = 1.0–1.6) for potential SOFC/SOEC applications