Relaxor-Like Behavior of Self-Polarized Pb(Zr,Ti)O3 Thin Films |
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| Journal | Materials Science Forum (Volumes 514 - 516) |
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| Volume | Advanced Materials Forum III |
| Edited by | Paula Maria Vilarinho |
| Pages | 175-178 |
| DOI | 10.4028/www.scientific.net/MSF.514-516.175 |
| Citation | Gunnar Suchaneck et al., 2006, Materials Science Forum, 514-516, 175 |
| Online since | May, 2006 |
| Authors | Gunnar Suchaneck, Alexander Deyneka, Lubomir Jastrabík, Gerald Gerlach |
| Keywords | Dielectric Spectroscopy, Lead Zirconate Titanate, Self-Polarization |
| Abstract | Self-polarized Pb(Ti,Zr)O3 thin films deposited under lead enriched conditions by multitarget reactive sputtering at low substrate temperatures are characterized by tetravalent B-site occupation of excess lead. The imaginary part of the dielectric constant of such films shows a relaxor-like behavior. Evidence of a Pb2+/Pb4+ mixed valence is given by the temperature and frequency dependence of the ac conductivity. PbO volatility starts to deplete the growing film at a critical temperature of 500°C and Pb4+ formation disappears. |
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