Complex dielectric and impedance analysis in Dy1-XPrXMnO3 compounds: Partial substitution effects
Source abstract
Abstract
Synthesis and characterization of single phasic Dy 1-x Pr x MnO 3 (DPMO) ceramic samples through solid-state reaction (SSR) method are reported in present study. XRD analysis confirmed the structural formation of DPMO and revealed lattice changes induced by Pr substitution that affect JT-distortion and tilting of MnO 6 octahedra . Fine-grained microstructures with a micrometre-sized grain size were observed using FESEM images, which increased with increasing Pr concentration. The variation of activation energy in DPMO was found to be induced by modification in Mn–O bond distances. The dielectric behaviour of DPMO was significantly enhanced, which was explained using the UDR model fitting. Impedance analysis confirmed the existence of non-Debye type relaxation and negligible electronic polarization mechanisms in all DPMO samples. With the increase in temperature, a reduction in the magnitude of Z' was observed, indicating a decrease in the resistance of contributing electroactive components such as grains, grain boundaries , and electrode interfaces. Electric modulus studies revealed the existence of grain and grain boundary relaxation processes throughout the studied frequency and temperature range in DPMO compounds. Overall, the study provides deep insights into the effect of Pr substitution on the structural, electrical, and dielectric properties of DPMO and highlights the potential of DPMO for future electronic and energy device applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. Electronic structures of hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films10.1103/PhysRevB.77.045137 ↗
2. Multiferroic and magnetoelectric materials10.1038/nature05023 ↗
3. Multiferroics: progress and prospects in thin films10.1038/nmat1805 ↗
4. Magnetic control of ferroelectric polarization10.1038/nature02018 ↗
5. Structural, electrical and magnetic properties of orthorhombic GdMn1-xNixO3 (0≤ x≤ 0.1): influence of Ni doping10.1016/j.jmmm.2022.170102 ↗
6. Structural, electrical, and magnetic properties of La0.7Ca0.3 − xNaxMnO3 ± γ solid solutions10.1134/S0020168508020180 ↗
7. Lakhani · 2021
8. Crystal structure of DyMnO310.1016/S0167-577X(99)00216-5 ↗
9. Electron paramagnetic resonance studies on multiferroic DyMnO3 and Dy0.5Sr0.5MnO310.1063/1.2955774 ↗
10. Distortion-dependent Raman spectra and mode mixing in RMnO3 perovskites (R = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y)10.1103/PhysRevB.73.064302 ↗
11. Hole doping effect on structure, transport and magnetic properties of Dy1-xBaxMnO3 (0 ≤x ≤1)10.1016/j.jallcom.2018.02.036 ↗
12. Magnetic and dielectric properties of R0.5Ca0.5MnO3 (R = Eu-Lu)10.1080/00150190902852208 ↗
13. Effect of substitution of Y on the structural, magnetic, and thermal properties of hexagonal DyMnO3 single crystals10.1103/PhysRevB.83.104424 ↗
14. Investigations on the spin-glass state in Dy0.5Sr0.5MnO3 single crystals through structural, magnetic and thermal properties10.1088/0953-8984/20/27/275234 ↗
15. Phase transition and phase separation in multiferroic orthorhombic Dy1− xHoxMnO3 (0≤ x≤ 1)10.1038/srep06506 ↗
16. Role of trivalent bismuth ion substitution at Dy site on the physical properties of DyMnO310.1016/j.jallcom.2016.11.373 ↗
17. Modification of low temperature magnetic interactions in Dy1− xEuxMnO310.1039/C8RA00224J ↗
18. Study of magnetic and magnetocaloric effect of REMnO3(RE=Dy, Eu)manganites10.1016/j.ceramint.2022.01.238 ↗
19. The effect of rare-earth Gd-substitution on the structural, magnetic and specific heat properties in orthorhombic DyMnO3 ceramics10.1088/1361-6463/ab90b3 ↗
20. The effect of Eu dopant on the structural, dielectric and impedance properties of PrMnO3 manganite ceramics10.1016/j.jpcs.2021.110365 ↗
21. Evolution of the Jahn−Teller distortion of MnO 6 octahedra in RMnO3 perovskites (R = Pr, Nd, Dy, Tb, Ho, Er, Y): a neutron diffraction study10.1021/ic990921e ↗
22. Structural and micro-Raman studies of DyMnO3 with potassium substitution at the Dy site10.1039/C6RA13808J ↗
23. Pressure-dependent electronic structures in multiferroic DyMnO3: a combined lifetime-broadening-suppressed x-ray absorption spectroscopy and ab initio electronic structure study10.1063/1.3490400 ↗
24. Electronic, structural, and magnetic properties of LaMnO3 phase transition at high temperature10.1103/PhysRevB.93.024111 ↗
25. Pressure-induced structural change in orthorhombic perovskite GdMnO310.1088/0953-8984/24/11/115402 ↗
26. Effect of barium doping on the microstructure, dielectric and magnetic properties of GdMnO3 multiferroic ceramics10.1007/s10854-018-0526-7 ↗
27. Structural, electrical and magnetic phase evolution of Cr substituted GdMn1− xCrxO3 (0⩽ x⩽ 0.2) manganites10.1016/j.jallcom.2015.05.022 ↗
28. Manipulating the ferromagnetism in narrow-bandwidth Pr1-xCaxMnO3 (0≤ x≤ 0.6) by means of the Mn-Ru t2g ferromagnetic super-exchanges
29. Double exchange alone does not explain the resistivity of La1−xSrxMnO310.1103/PhysRevLett.74.5144 ↗
30. Small adiabatic polaron with a long-range electron-phonon interaction10.1103/PhysRevB.69.073101 ↗
31. Structural, electrical, and colossal thermoelectric properties of Dy1−xSrxMnO3 manganites10.1007/s10948-014-2847-y ↗
32. Mixed-valence manganites10.1080/000187399243455 ↗
33. The effect of Co substitution on the crystal structure and electrical resistivity of (La0.85Ag0.15)MnO3 compounds10.1007/s10948-009-0456-y ↗
34. Small polaron hopping conduction mechanism in Fe doped LaMnO310.1063/1.3615720 ↗
35. Dielectric relaxation and variable range hopping conduction in sol-gel auto combustion derived La0.7Bi0.3Fe0.5Mn0.5O3 manganite10.1016/j.mseb.2021.115153 ↗
36. Frequency and temperature-dependence of dielectric permittivity and electric modulus studies of the solid solution Ca0.85Er0.1Ti 1−xCo4x/3O3(0≤x≤0.1)10.1039/C8RA00794B ↗
37. Rare earth manganite: ac electrical properties of Dy1− xKxMnO3 (x= 0.1, 0.2)10.1007/s10854-019-01338-5 ↗
38. High dielectric constant and relaxor behavior in La0.7Sr0.25Na0.05Mn0.8Ti0.2O3 manganite10.1016/j.jallcom.2018.07.056 ↗
39. Table of static dipole polarizabilities of the neutral elements in the periodic table
40. Effect of porosity on dielectric properties and microstructure of porous PZT ceramics10.1016/j.mseb.2005.10.003 ↗
41. The e€ect of microstructure on the electrical properties of NiO-doped BaTiO310.1016/S0272-8842(98)00058-3 ↗
42. Ni doping effect on the temperature-dependent dielectric properties and ac conductivity of polycrystalline GdMn1−XNiXO3 ceramics10.1007/s10854-023-10903-y ↗
43. Effect of grain size on dielectric and ferroelectric properties of nanostructured Ba0.8Sr0.2TiO3 ceramics10.1007/s40145-015-0130-8 ↗
44. Effect of grain size on the electrical properties of (Ba,Ca)(Zr,Ti)O3 relaxor ferroelectric ceramics10.1063/1.1849817 ↗
45. Dielectric properties and thermally activated relaxation in monovalent (Li+1) doped multiferroic GdMnO310.1007/s00339-021-04333-y ↗
46. Investigation on transport properties of GdMnO3 based bilayer thin films
47. Impedance and electric modulus analysis of Sm-modified Pb(Zr0.55Ti0.45)1−x/4O3 ceramics10.1016/j.jallcom.2011.03.003 ↗
48. The ‘universal’ dielectric response10.1038/267673a0 ↗
49. Relaxation and fluctuations in glassy fast-ion conductors: wide-frequency-range NMR and conductivity measurements10.1103/PhysRevB.46.795 ↗
50. Electrical relaxation in Na2O.3SiO2 glass10.1111/j.1151-2916.1972.tb13413.x ↗