Publications

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Conference Paper
Friessnegg, T., B. Nielsen, V.J. Ghosh, A.R. Moodenbaugh, S. Madhukar, S. Aggarwal, D.J. Keeble, E.H. Poindexter, P. Mascher, and Ramamoorthy Ramesh. "Defect identification in (La, Sr)CoO3-δ using positron annihilation spectroscopy." Materials Research Society Symposium - Proceedings. Vol. 541. 1999. 161-165.
Friessnegg, T., S. Aggarwal, B. Nielsen, Ramamoorthy Ramesh, D.J. Keeble, and E.H. Poindexter. "Investigation of vacancy-related defects in (Pb,La)(Zr,Ti)O3 thin films using positron annihilation." IEEE International Symposium on Applications of Ferroelectrics. IEEE, Piscataway, NJ, United States, 1998. 147-150.
Friessnegg, T., B. Nielsen, V.J. Ghosh, S. Aggarwal, D.J. Keeble, E.H. Poindexter, and Ramamoorthy Ramesh. "Oxygen deficiency and vacancy formation in LSCO/PLZT/LSCO capacitors." Materials Research Society Symposium - Proceedings. Vol. 596. Materials Research Society, Warrendale, PA, United States, 2000. 393-397.
Keeble, D.J., S. Madhukar, B. Nielsen, A. Krishnan, P. Asoka-Kumar, S. Aggarwal, Ramamoorthy Ramesh, and E.H. Poindexter. "Vacancy related defects in La0.5Sr0.5CoO3-δ thin films." Materials Research Society Symposium - Proceedings. Vol. 477. MRS, Warrendale, PA, United States, 1997. 229-233.
Krishnan, A., D.J. Keeble, Ramamoorthy Ramesh, W.L. Warren, B.A. Tuttle, R.L. Pfeffer, B. Nielsen, and K.G. Lynn. "Vacancy related defects in thin film Pb(ZrTi)O3 materials." Materials Research Society Symposium - Proceedings. Vol. 361. Materials Research Society, Pittsburgh, PA, United States, 1995. 129-134.
Journal Article
Godfrey, R.P., T. Friessnegg, Ramamoorthy Ramesh, C.W. Tipton, R.C. Huffman, D.N. Robertson, E.H. Poindexter, M.A. Quuada, B. Nielsen, and D.J. Keeble. "Infrared absorbing oxide electrodes in epitaxial pyroelectric Pb-La-Ti-O heterostructures with controlled domain orientation." Integrated Ferroelectrics 25 (1999) 135-147.
Fhessnegg, T., S. Aggarwal, B. Nielsen, Ramamoorthy Ramesh, D.J. Keeble, and E.H. Poindcxtor. "A study of vacancy-related defects in (pb,la)(zr,ti)o3 thin films using positron annihilation." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 47 (2000) 916-920.
Keeble, D.J., B. Nielsen, A. Krishnan, K.G. Lynn, S. Madhukar, Ramamoorthy Ramesh, and C.F. Young. "Vacancy defects in (Pb, La)(Zr, Ti)O3 capacitors observed by positron annihilation." Applied Physics Letters 73 (1998) 318-320.
Keeble, D.J., A. Krishnan, T. Friessnegg, B. Nielsen, S. Madhukar, S. Aggarwal, Ramamoorthy Ramesh, and E.H. Poindexter. "Vacancy defects in thin-film La0.5Sr0.5CoO3-δ observed by positron annihilation." Applied Physics Letters 73 (1998) 508-510.
Friessnegg, T., S. Aggarwal, Ramamoorthy Ramesh, B. Nielsen, E.H. Poindexter, and D.J. Keeble. "Vacancy formation in (Pb,La)(Zr,Ti)O3 capacitors with oxygen deficiency and the effect on voltage offset." Applied Physics Letters 77 (2000) 127-129.