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Role of Fe Doping o...
Role of Fe Doping on Local Structure and Electrical and Magnetic Properties of PbTiO3
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- Ganegoda, Hasitha (författare)
- IIT, Dept Phys, Chicago, IL 60616 USA.;IIT, Ctr Synchrotron Radiat Res & Instrumentat, Chicago, IL 60616 USA.
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- Mukherjee, Soham (författare)
- Uppsala universitet,Energimaterialens fysik
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- Ma, Beihai (författare)
- Argonne Natl Lab, Appl Mat Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
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- Olive, Daniel T. (författare)
- IIT, Dept Phys, Chicago, IL 60616 USA.;IIT, Ctr Synchrotron Radiat Res & Instrumentat, Chicago, IL 60616 USA.
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- McNeely, James H. (författare)
- IIT, Dept Chem, Chicago, IL 60616 USA.
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- Kaduk, James A. (författare)
- IIT, Dept Chem, Chicago, IL 60616 USA.;Poly Crystallog Inc, Naperville, IL 60540 USA.
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- Terry, Jeff (författare)
- IIT, Dept Phys, Chicago, IL 60616 USA.;IIT, Ctr Synchrotron Radiat Res & Instrumentat, Chicago, IL 60616 USA.
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- Rensmo, Håkan (författare)
- Uppsala universitet,Energimaterialens fysik
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- Segre, Carlo U. (författare)
- IIT, Dept Phys, Chicago, IL 60616 USA.;IIT, Ctr Synchrotron Radiat Res & Instrumentat, Chicago, IL 60616 USA.
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IIT, Dept Phys, Chicago, IL 60616 USA;IIT, Ctr Synchrotron Radiat Res & Instrumentat, Chicago, IL 60616 USA. Energimaterialens fysik (creator_code:org_t)
- 2021-05-26
- 2021
- Engelska.
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Ingår i: The Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 125:22, s. 12342-12354
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- The local structure and multiferroic properties of iron-doped lead titanate (PbTi1-xFexO3-delta) samples was investigated over the entire composition range (x = 0-1). Inherent polarization in PbTiO3 decreases due to Fe3+ incorporation up to the solubility limit (x similar to 0.3), although homogeneous doping persists only up to x = 0.1. Ti prefers highly distorted oxygen octahedra for any x value, while Fe prefers more symmetric O-deficient polyhedra (Fe-O-n). The charge compensating oxygen vacancies induce local tilting of the Fe-O-n polyhedra beyond a critical x value (x >= 0.2), promoting magnetic interaction between two adjacent Fe atoms. The strain induced by local heterogeneity could act as a coupling force between magnetic and ferroelectric properties. Fe-rich clusters evolve into ferromagnetic PbFe12O19 with increased Fe doping. PbTi1-xFexO3-delta ( x >= 0.3) samples therefore have separate origins for the ferroelectric (PbTi1-xFexO3-delta) and magnetic (PbFe12O19) phases.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
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