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dc.contributor.authorTu, C.-S.
dc.contributor.authorWang, T.-H.
dc.contributor.authorSchmidt, V. Hugo
dc.contributor.authorChien, R. R.
dc.date.accessioned2019-02-08T19:05:59Z
dc.date.available2019-02-08T19:05:59Z
dc.date.issued2011
dc.identifier.citationC.-S. Tu, T.-H. Wang, V.H. Schmidt, and R.R. Chien, “Origin of low-frequency dielectric permittivity in BiFeO3 multiferroic ceramics,” IEEE Conference Publication for ISAF/PFM 2011 International Symposium on Applied of Ferroelectrics, Vancouver, BC, pp. 24-27 (2011). doi: 10.1109/ISAF.2011.6014103.en_US
dc.identifier.issn1099-4734
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/15241
dc.description.abstractA one-dimensional conductivity barrier model is introduced to describe the dielectric response and conductivity of BiFeO 3 (BFO) and (Bi 0.95 Nd 0.05 )FeO 3 (BFO-5%Nd) ceramics as functions of temperature and frequency. Good qualitative fits of conductivity and dielectric permittivity in the intermediate-temperature region (500-800 K) are obtained with intrinsic barriers of B=8700 K (for BFO) and B=8400 K (for BFO-5%Nd), and extrinsic barriers of Δ=2500 K (for BFO and BFO-5%Nd). The phase-shifted conductivity is responsible for a step-like dielectric relaxation in the region of 500-800 K. The experimental conductivity departs from the conductivity-barrier-model fit below 650 K. This deviation is likely caused by the magneto-electric coupling near the antiferromagnetic-paramagnetic transition. This work suggests that the 5% mole Nd-substitution can stabilize the perovskite structure in BFO ceramic.en_US
dc.description.sponsorshipNational Science Council of Taiwan Grant No. 97-2112-M-030-003-MY3en_US
dc.language.isoenen_US
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en_US
dc.titleOrigin of low-frequency dielectric permittivity in BiFeO3 multiferroic ceramicsen_US
dc.typeArticleen_US
mus.citation.extentfirstpage24en_US
mus.citation.extentlastpage27en_US
mus.citation.journaltitleIEEE Conference Publication for ISAF/PFM 2011 International Symposium on Applied of Ferroelectricsen_US
mus.identifier.categoryPhysics & Mathematicsen_US
mus.identifier.doi10.1109/ISAF.2011.6014103en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentPhysics.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage2en_US


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