Structure transition and multiferroic properties of Mn-doped BiFeO3 thin films

Liu, Wenlong; Tan, Guoqiang; Dong, Guohua; Yan, Xia; Ye, Wei; Ren, Huijun; Xia, Ao

doi:10.1007/s10854-013-1636-x

Cited by 18 publications

(4 citation statements)

References 21 publications

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“…The peaks of the BFMO films fit well with the tetragonal BiMnO 3 reported in PDF#53-0767, which implies that the film structure has partly transferred from rhombohedral to tetragonal due to the Mn doping. Similar results have been reported previously [18]. From the XRD patterns, we can also see that BFMO did not crystalize as well as BFO.…”

Section: Resultssupporting

confidence: 90%

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Photoelectrochemical Performance Observed in Mn-Doped BiFeO3 Heterostructured Thin Films

Wang

Shi

et al. 2016

Nanomaterials

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Pure BiFeO3 and heterostructured BiFeO3/BiFe0.95Mn0.05O3 (5% Mn-doped BiFeO3) thin films have been prepared by a chemical deposition method. The band structures and photosensitive properties of these films have been investigated elaborately. Pure BiFeO3 films showed stable and strong response to photo illumination (open circuit potential kept −0.18 V, short circuit photocurrent density was −0.023 mA·cm−2). By Mn doping, the energy band positions shifted, resulting in a smaller band gap of BiFe0.95Mn0.05O3 layer and an internal field being built in the BiFeO3/BiFe0.95Mn0.05O3 interface. BiFeO3/BiFe0.95Mn0.05O3 and BiFe0.95Mn0.05O3 thin films demonstrated poor photo activity compared with pure BiFeO3 films, which can be explained by the fact that Mn doping brought in a large amount of defects in the BiFe0.95Mn0.05O3 layers, causing higher carrier combination and correspondingly suppressing the photo response, and this negative influence was more considerable than the positive effects provided by the band modulation.

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Section: Resultssupporting

confidence: 90%

“…The Mn element has attracted great attention due to its special role in BFO thin films. For example, people found that BFO films showed enhanced ferroelectric and weak magnetic behaviors by 5% Mn substitution [18,19]. Optical and PC properties of Mn-involved co-doping BFO have also been recently studied.…”

Section: Introductionmentioning

confidence: 99%

Photoelectrochemical Performance Observed in Mn-Doped BiFeO3 Heterostructured Thin Films

Wang

Shi

et al. 2016

Nanomaterials

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“…Enhanced piezoelectric coefficient (d 33 ) was observed in (1 À x)BiFeO 3 -xBiCoO 3 solid solution [16]. Superior dielectric and ferroelectric properties were reported in Tb, Cr co-substituted BFO chemical solution deposited films [17]. Besides the improvement in the electric and magnetic properties, there can also occur structural transition with substation in BFO samples.…”

Section: Introductionmentioning

confidence: 95%

Magnetoelectric coupling effect in transition metal modified polycrystalline BiFeO3 thin films

Puli¹,

Pradhan²,

Gollapudi³

et al. 2014

Journal of Magnetism and Magnetic Materials

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“…However, You et al [ 20 ] reported that La doping destabilized the in-plane polarization component, and Lazenka et al [ 21 ] reported that La-doped BFO film showed weak ferromagnetism. Besides, some groups [ 22 , 23 ] reported that the Mn-doped BFO system showed intrinsic weak magnetism, whereas other groups [ 24 , 25 ] observed enhanced magnetism in Mn-doped BFO thin films. Therefore, a systematic theoretical investigation was necessary to clarify these issues.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties and Spontaneous Polarization of La-, Mn- and N-Doped Tetragonal BiFeO3: A First-Principles Study

2018

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Multiferroic materials have been receiving attention for their potential applications in multifunctional devices. Chemical substitution is an effective method for improving the physical properties of BiFeO3 (BFO). However, different experimental results have been reported for Lanthanum- (La-) and Manganese (Mn) -doped BFO ceramics. Here, we systematically studied the magnetic properties and spontaneous polarization of La-, Mn-, and Nitrogen (N) -doped tetragonal BiFeO3 using density functional theory with the generalized gradient approximation and U-value method. The calculated results demonstrated that the systems show ferromagnetism with Mn and N doping, whereas no magnetization was found with La doping in G- and C-type antiferromagnetic orderings. Our research further revealed that the ferromagnetism is attributed to the p-d orbital hybridization. Berry-phase polarization calculations predicted a large polarization of 149.2 µC/cm2 along the [001] direction of pure tetragonal BFO. We found that La and N substitution had little influence on the spontaneous polarization, whereas Mn substitution reduced the spontaneous polarization. The reduced energy barrier heights of the doped systems indicate the reduced stability of the off-centering ferroelectricity against the thermal agitation. These findings provide greater understanding for controlling and tuning the multiferroic properties of BFO.

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Structure transition and multiferroic properties of Mn-doped BiFeO3 thin films

Cited by 18 publications

References 21 publications

Photoelectrochemical Performance Observed in Mn-Doped BiFeO3 Heterostructured Thin Films

Photoelectrochemical Performance Observed in Mn-Doped BiFeO3 Heterostructured Thin Films

Magnetoelectric coupling effect in transition metal modified polycrystalline BiFeO3 thin films

Magnetic Properties and Spontaneous Polarization of La-, Mn- and N-Doped Tetragonal BiFeO3: A First-Principles Study

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