TU Darmstadt / ULB / TUbiblio

Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation

Eichel, Rüdiger-A. and Meštrić, Hrvoje and Kungl, Hans and Hoffmann, Michael J. (2006):
Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation.
In: Applied Physics Letters, pp. 122506-1, 88, (12), ISSN 00036951, [Online-Edition: http://dx.doi.org/10.1063/1.2185258],
[Article]

Abstract

Gadolinium(III)-modified polycrystalline lead titanate (PbTiO3) of 1.0 mol % dopant level was investigated by means of multifrequency electron paramagnetic resonance spectroscopy in order to determine sign and size of the local-environment sensitive finestructure parameter B20. The Gd3+ ions were assigned to substitute for Pb2+ at the A site of the perovskite ABO3 lattice, providing donor centers. The obtained value amounts to B20 = 0.776(2) GHz at ambient temperature and 0.860(2) GHz at 5 K, thus showing a considerable temperature dependence. A charge-compensation mechanism is proposed that is based solely on the creation of lead and oxygen vacancies.

Item Type: Article
Erschienen: 2006
Creators: Eichel, Rüdiger-A. and Meštrić, Hrvoje and Kungl, Hans and Hoffmann, Michael J.
Title: Multifrequency electron paramagnetic resonance analysis of polycrystalline gadolinium-doped PbTiO[sub 3]—Charge compensation and site of incorporation
Language: English
Abstract:

Gadolinium(III)-modified polycrystalline lead titanate (PbTiO3) of 1.0 mol % dopant level was investigated by means of multifrequency electron paramagnetic resonance spectroscopy in order to determine sign and size of the local-environment sensitive finestructure parameter B20. The Gd3+ ions were assigned to substitute for Pb2+ at the A site of the perovskite ABO3 lattice, providing donor centers. The obtained value amounts to B20 = 0.776(2) GHz at ambient temperature and 0.860(2) GHz at 5 K, thus showing a considerable temperature dependence. A charge-compensation mechanism is proposed that is based solely on the creation of lead and oxygen vacancies.

Journal or Publication Title: Applied Physics Letters
Volume: 88
Number: 12
Uncontrolled Keywords: lead compounds, gadolinium, paramagnetic resonance, charge compensation, doping profiles, fine structure, vacancies (crystal)
Divisions: DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis > Subproject A2: Manufacturing and characterization of PZT-ceramics with defined defect chemistry
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B1: EPR-Investigations of defects in ferroelectric ceramic material
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 27 Jul 2011 12:42
Official URL: http://dx.doi.org/10.1063/1.2185258
Additional Information:

SFB 595 Cooperation A2, B1

Identification Number: doi:10.1063/1.2185258
Export:

Optionen (nur für Redakteure)

View Item View Item