Structure and magnetic behavior of Zn doped NdMnO3 manganite: Neutron diffraction study

Vyas, Brinda; Kundalia, Hetal; Udeshi, Malay; Trivedi, Priyanka; Vagadia, Megha; Rayaprol, Sudhindra; Kuberkar, D. G.

doi:10.1016/j.ceramint.2017.08.015

Cited by 11 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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

View full text Add to dashboard Cite

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.

show abstract