Zobrazeno 1 - 10
of 35
pro vyhledávání: '"D. J. Keeble"'
Publikováno v:
AIP Advances, Vol 6, Iss 12, Pp 125031-125031-8 (2016)
The photovoltaic performance of Cu(In1-x,Gax)Se2 (CIGS) materials is commonly assumed to be degraded by the presence of vacancy-related defects. However, experimental identification of specific vacancy defects remains challenging. In this work we rep
Externí odkaz:
https://doaj.org/article/725b1ee54cb04d2d9e4277f7fc52cda0
Publikováno v:
Integrated Ferroelectrics. 62:119-125
The effects of Mn doping on the ferroelectric properties of Pb(Zr0.3Ti0.7)O3 (PZT) thin films on Pt/Ti/SiO2/Si substrates have been investigated. Doping in the range 0.2 ≤ x ≤ 1 mol% showed almost no hysteretic fatigue up to 1010 switching bipola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe0a8793c963f1fed5ced6da74d8b503
https://doi.org/10.1080/10584580490460673
https://doi.org/10.1080/10584580490460673
Publikováno v:
Integrated Ferroelectrics. 32:179-197
The detection of oxygen vacancies by positron annihilation techniques in selected perovskite-type oxide thin films is reviewed. The basic principles of this defect characterization method, applied to thin films, are introduced. The capability of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::926c5dbf66c495f3047da9f716807cfd
https://doi.org/10.1080/10584580108215689
https://doi.org/10.1080/10584580108215689
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 47:916-920
The formation of vacancy-type defects in La-doped lead zirconate titanate (PLZT) thin films (Zr/Ti=20/80) was studied as a function of lanthanum doping and after cooling in an oxygen-reduced ambient. The changes in the Doppler-broadening S parameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d31668c43e26e62dd4a49a371708a8c4
https://doi.org/10.1109/58.852074
https://doi.org/10.1109/58.852074
Autor:
C. W. Tipton, D. J. Keeble, Robert C. Hoffman, Edward H. Poindexter, R. Ramesh, R. P. Godfrey, M. A. Quuada, Bent Nielsen, T. Friessnegg, D. N. Robertson
Publikováno v:
ResearcherID
Oxide-based pyroelectric heterostructures of La-Sr-Co-O/ Pb0.9La0.1Ti0.975O3/La-Sr-Co-O have been grown. Single-crystal LaAlO3substrates were chosen to obtain high quality epitaxial thin films in order to address basic pyroelectric properties. The us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9916887eaca741e359d81eb58da090d3
https://doi.org/10.1080/10584589908210167
https://doi.org/10.1080/10584589908210167
Autor:
R. Ramesh, A. R. Moodenbaugh, D. J. Keeble, Sanjeev Aggarwal, Edward H. Poindexter, T. Friessnegg, S. Madhukar, Bent Nielsen, Peter Mascher
Publikováno v:
Physical Review B. 59:13365-13369
Positron-lifetime and depth-resolved Doppler-broadening spectroscopy were used to investigate vacancies formed in bulk and laser ablated thin film La{sub 1{minus}x}Sr{sub x}CoO{sub 3}. In bulk samples, metal ion vacancies, which are most likely situa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85852b32811409226b6a2d9b1ef1e5c8
https://doi.org/10.1103/physrevb.59.13365
https://doi.org/10.1103/physrevb.59.13365
Autor:
A. M. Dhote, A. Krishnan, D. J. Keeble, Edward H. Poindexter, S. Madhukar, R. Ramesh, Sanjeev Aggarwal
Publikováno v:
Journal of Applied Physics. 81:3543-3547
We report on the metal-insulator transition of La0.5Sr0.5CoO3 thin films deposited by pulsed laser ablation on LaAlO3 substrates. The films were cooled in oxygen partial pressures between 760 and 10−5 Torr and electrical resistivity of the films wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cd913247ac53ff09ceea78b989bbace
https://doi.org/10.1063/1.364991
https://doi.org/10.1063/1.364991
Autor:
D. J. Keeble, S. Wicklein, G. S. Kanda, W. Egger, R. Dittmann, T. Zacherle, P. C. Schmidt, M. Martin, C. Xu, A. Sambri, S. Amoruso, R. A. Mackie, Barbara Abendroth, Juliane Hanzig, Hartmut Stöcker, Florian Hanzig, Ralph Strohmeyer, Solveig Rentrop, Uwe Mühle, Dirk C. Meyer, Christian Pithan, Hayato Katsu, Rainer Waser, Hiroshi Takagi, Xinzhi Chen, Julian R. Tolchard, Sverre M. Selbach, Tor Grande
Publikováno v:
Frontiers in Electronic Materials: A Collection of Extended Abstracts of the Nature Conference Frontiers in Electronic Materials, June 17 to 20 2012, Aachen, Germany
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f83841ec9a9547dcc9fe8f4d82628296
https://doi.org/10.1002/9783527667703.ch47
https://doi.org/10.1002/9783527667703.ch47
Publikováno v:
Physical review / B 87(19), 195409 (2013). doi:10.1103/PhysRevB.87.195409
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9e1718d87710b187b4a3627b5255691
https://hdl.handle.net/2128/5169
https://hdl.handle.net/2128/5169
Publikováno v:
Journal of Physics: Condensed Matter. 7:6327-6333
The electron paramagnetic resonance spectrum of Mn4+ in single-crystal lead titanate has been studied at 9.8 and 33.8 GHz. An axial sextet with gperpendicular to eff=3.7742(1) to g/sub ///eff approximately=2.00 was measured at 9.8 GHz and with gperpe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e5121b4e9a8b7edf29c91eef7064714
https://doi.org/10.1088/0953-8984/7/31/015
https://doi.org/10.1088/0953-8984/7/31/015