Oxygen vacancy modulating inverse and conventional magnetocaloric effects coexisting in double perovskite Bi2NiMnO6-δ films
Source abstract
Abstract
Abstract The oxygen vacancies (VO) modulating inverse and conventional magnetocaloric effects in double perovskite Bi2NiMnO6-δ polycrystalline films are claimed. The vacuum annealing processor showed large regulated artificial VO concentration from 5.1% to 17.6%, which has been verified by X-photoelectron spectrum results. The role of VO concentration in magnetocaloric effect is clarified by the charge transfer mechanism. The band length and angle (O-Ni-O, O-Mn-O) are sensitive to the valence confusion of elements (Mn and Ni), which is disturbed by VO concentration. This scenario contributes to the spin orientation and antiferromagnetic/ferromagnetic (AFM/FM) competition near the phase transition point by coulomb exchange interaction. The temperature dependent transport behavior, meanwhile, presents metallic-FM state in Bi2NiMnO6-δ (high VO concentration). While stoichiometric Bi2NiMnO6 (low VO concentration) films show dielectric traits. The structure, magnetization and optical absorption properties were characterized systematically. The present work explores a route to design magnetocaloric materials via controllable artificial VO defects.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Multiferroics and related materials · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. Multiferroic Bi2NiMnO6 thin films: a computational prediction10.1103/PhysRevB.95.085129 ↗
2. Large low–field magnetodielectric response in multiferroic Bi2NiMnO6 thin film10.1088/1361-6463/aa5948 ↗
3. Microstructure, electrical properties of Bi2NiMnO6–doped 0.935(Bi1/2Na1/2)TiO3–0.065BaTiO3 lead–free piezoelectric ceramics10.1016/j.jallcom.2015.01.090 ↗
4. Energy applications of magnetocaloric materials
5. L. C. Hsu, Microchannel cooling device with magnetocaloric pumping. U.S. Patent Appl. No. 11/184,965.
6. Influence of La addition on the structural, magnetic and magnetocalori cproperties in Sr2-xLaxFeMoO6 (0≤x≤0.3) double perovskite10.1016/j.ceramint.2016.05.094 ↗
7. Frustration of magnetic and ferroelectric long-range order in Bi2Mn4/3Ni2/3O610.1021/ja902424x ↗
8. Preparation, structural, and multiferroic properties of B-site ordered double-perovskite Bi2FeMnO610.1039/C7TC00974G ↗
9. Dielectric properties of (Bi0.9La0.1)2NiMnO6 thin films: determining the intrinsic electric and magnetoelectric response10.1103/PhysRevB.86.085108 ↗
10. Sc2NiMnO6: a double-perovskite with a magnetodielectric response driven by multiple magnetic orders10.1021/acs.inorgchem.5b01195 ↗
11. Designed ferromagnetic, ferroelectric Bi2NiMnO610.1021/ja0512576 ↗
12. Oxygen vacancy enables electrochemical N2 fixation over WO3 with tailored structure10.1016/j.nanoen.2019.06.019 ↗
13. The influence of oxygen vacancy on the electronic and optical properties of ABO3−δ (A= La, Sr, B= Fe, Co) perovskites10.1039/C9CP03883C ↗
14. Magnetic and optical behaviors of SnO2-x thin films with oxygen vacancies prepared by atomic layer deposition10.1016/j.ceramint.2018.11.040 ↗
15. Oxygen vacancy mediated conductivity and charge transport properties of epitaxial Ba0.6La0.4TiO3-δ thin films10.1063/1.5093749 ↗
16. Stability of the oxygen vacancy induced conductivity in BaSnO3 thin films on SrTiO310.1063/1.4996548 ↗
17. Gating-induced reversible HxVO2 phase transformations for neuromorphic computing10.1016/j.nanoen.2019.104268 ↗
18. Doping and temperature-dependent optical properties of oxygen-reduced BaTiO3−δ10.1103/PhysRevB.82.214109 ↗
19. Emerging magnetism and electronic phase separation at titanate interfaces10.1103/PhysRevB.88.201104 ↗
20. Long–range order of Ni2+ and Mn4+ and ferromagnetism in multiferroic (Bi0.9La0.1)2NiMnO6 thin films10.1063/1.3524278 ↗
21. Density functional investigations on electronic structures, magnetic ordering and ferroelectric phase transition in multiferroic Bi2NiMnO610.1063/1.4709401 ↗
22. Dynamic exchange effect induced multi-state magnetic phase diagram in manganese oxide Pr1-xCaxMnO310.1016/j.jallcom.2019.07.058 ↗
23. Experiments on charge transfer and exchange interactions10.1039/df9582600053 ↗
24. Evidence of oxygen vacancy induced room temperature ferromagnetism in solvothermally synthesized undoped TiO2 nanoribbons10.1039/c3nr00799e ↗
25. Oxygen vacancy–induced ferromagnetism in un-doped ZnO thin films10.1063/1.3679560 ↗
26. Structural, magnetic, magnetocaloric and specific heat investigations on Mn doped PrCrO3 orthochromites10.1088/1361-648X/aa666c ↗
27. Linear magnetoelectric effect as a signature of long–range collinear antiferromagnetic ordering in the frustrated spinel CoAl2O410.1103/PhysRevB.95.094404 ↗
28. Modeling of magnetic and magnetocaloric properties by the molecular mean field theory in La0.8Ca0.2MnO3 oxides with first and second magnetic phase transition10.1016/j.jmmm.2019.02.052 ↗
29. Multiple magnetic phase transitions and magnetocaloric effect in double perovskites R2NiMnO6 (R= Dy, Ho, and Er)10.1016/j.jallcom.2017.08.073 ↗
30. From direct to inverse giant magnetocaloric effect in Co–doped NiMnGa multifunctional alloys10.1016/j.actamat.2010.09.059 ↗
31. Conventional and inverse magnetocaloric effects in La0.45Sr0.55MnO3 nanoparticles10.1063/1.3614586 ↗
32. Coexistence of conventional and inverse magnetocaloric effects and critical behaviors in Ni50Mn50-xSnx (x=13 and 14) alloy ribbons10.1063/1.4767453 ↗
33. Universal field dependence of conventional and inverse magnetocaloric effects in DyCo2Si210.1063/1.4974302 ↗
34. Normal and inverse magnetocaloric effect in colossal magnetoresistive electron-doped manganites R0.15Ca0.85MnO3 (R=Y, Gd and Dy)10.1016/j.jmmm.2018.11.003 ↗
35. Direct and indirect measurement of the magnetocaloric effect in the La0.5Ca0.5−xPbxMnO3 (0 ≤ x ≤ 0.2) manganites10.1016/j.jmmm.2019.165734 ↗
36. A quantitative criterion for determining the order of magnetic phase transitions using the magnetocaloric effect10.1038/s41467-018-05111-w ↗
37. The role of Ni in modifying the order of the phase transition of La(Fe,Ni,Si)1310.1016/j.actamat.2018.08.054 ↗
38. Possible double-exchange interaction between manganese and chromium in LaMn1-xCrxO310.1103/PhysRevB.63.174438 ↗
39. Role of antisite disorder, rare–earth size, and superexchange angle on band gap, curie temperature, and magnetization of R2NiMnO6 double perovskites10.1021/acsaelm.8b00062 ↗
40. Magnetization reversal behavior and magnetocaloric effect in SmCr0.85Mn0.15O3 chromites10.1063/1.4974737 ↗
41. Half-metallic behavior in doped Sr2CrOsO6 double perovskite with high transition temperature10.1038/srep15010 ↗
42. Carrier density control of magnetism and Berry phases in doped EuTiO310.1063/1.5025317 ↗
43. Anisotropic magnetoresistance in the itinerant antiferromagnetic EuTiO310.1103/PhysRevB.99.041106 ↗
44. Evidence of a topological Hall effect in Eu1-xSmxTiO310.1063/1.4997498 ↗
45. Spontaneous Hall effects in the electron system at the SmTiO3/EuTiO3 interface10.1063/1.5025169 ↗
46. Effect of chemical substitution on the morphology and optical properties of Bi1-xCaxFeO3 films grown by pulsed-laser deposition10.1007/s10854-012-0724-7 ↗
47. A new diluted magnetic semiconductor based on the expanded phase of ZnS: surmounting the random distribution of magnetic impurities
48. First–principles study on the differences of possible ferroelectric behavior and magnetic exchange interaction between Bi2NiMnO6 and La2NiMnO6