Source: https://web2.ph.utexas.edu/~aadg/lab/publications.html
Timestamp: 2019-04-21 14:27:26+00:00

Document:
T. Hadamek, A. B. Posadas, A. Dhamdhere, D. J. Smith, and A. A. Demkov, "Spectral identification scheme for epitaxially grown single-phase niobium dioxide," J. Appl. Phys. 119, 095308 (2016).
S. Lu, K. J. Kormondy, T. Q. Ngo, T. Aoki, A. B. Posadas, J. G. Ekerdt, A. A. Demkov, M. R. McCartney, and D. J. Smith, "Spectrum and phase mapping across the epitaxial γ-Al2O3/SrTiO3 interface," Appl. Phys. Lett. 108, 051606 (2016).
M. D. McDaniel, T. Q. Ngo, S. Hu, A. Posadas, A. A. Demkov, and J. G. Ekerdt, "Atomic layer deposition of perovskite oxides and their epitaxial integration with Si, Ge, and other semiconductors," Appl. Phys. Rev. 2, 041301 (2015).
R. C. Hatch, M. Choi, A. B. Posadas, and A. A. Demkov, "Comparison of acid-and non-acid-based surface preparations of Nb-doped SrTiO3 (001)," J. Vac. Sci. Technol. B 33, 061204 (2015).
T. Q. Ngo, N. J. Goble, A. Posadas, K. J. Kormondy, S. Lu, M. D. McDaniel, J. Jordan-Sweet, D. J. Smith, X. P. A. Gao, a. A. Demkov, and J. G. Ekerdt, "Quasi-Two-Dimensional Electron Gas at the Interface of γ-Al2O3/SrTiO3 Heterostructures Grown by Atomic Layer Deposition," J. Appl. Phys. 118, 115303 (2015).
C. Lin, A. Posadas, T. Hadamek, and A. A. Demkov, "Final-state effect on x-ray photoelectron spectrum of nominally d1 and n-doped d0 transition-metal oxides," Phys. Rev. B 92, 035110 (2015).
M. Choi, C. Lin, M. Butcher, C. Rodriguez, Q. He, A. Posadas, A. Y. Borisevich, S. Zollner, and A. A. Demkov, "Quantum confinement in transition metal oxide quantum wells," Appl. Phys. Lett. 106, 192902 (2015).
A. A. Demkov, P. Ponath, K. Fredrickson, A. B. Posadas, M. D. McDaniel, T. Q. Ngo, and J. G. Ekerdt, "Integrated films of transition metal oxides for information technology," Microelectron. Eng. 147, 215 (2015).
K. J. Kormondy, S. Abel, F. Fallegger, Y. Popoff, P. Ponath, A. B. Posadas, M. Sousa, D. Caimi, H. Siegwart, E. Uccelli, L. Czornomaz, C. Marchiori, J. Fompeyrine, and A. A. Demkov, "Analysis of the Pockels effect in ferroelectric barium titanate thin films on Si(001)," Microelectron. Eng. 147, 215 (2015).
T. Q. Ngo, M. D. McDaniel, A. Posadas, A. A. Demkov, and J. G. Ekerdt, "Oxygen Vacancies at the γ-Al2O3/STO Heterointerface Grown by Atomic Layer Deposition," Mater. Res. Soc. Symp. Proc. 1730, 294 (2015).
K. Kormondy, A. Posadas, T. Q. Ngo, S. Lu, J. L. Jordan-Sweet, X. Guo, D. J. Smith, M. R. McCartney, J. G. Ekerdt, and A. A. Demkov, "Quasi-two-dimensional electron gas at the epitaxial alumina/SrTiO3 interface: control of oxygen vacancies," J. Appl. Phys. 117, 095303 (2015).
M. D. McDaniel, C. Hu, S. Lu, T. Ngo, A. Posadas, A. Jiang, D. J. Smith, E. T. Yu, A. A. Demkov, J. G. Ekerdt, "Atomic layer deposition of crystalline SrHfO3 directly on Ge (001) for high-k dielectric applications," J. Appl. Phys. 117, 054101 (2015).
P. Ponath, K. Fredrickson, A. B. Posadas, Y. Ren, X. Wu, R. K. Vasudevan, M. B. Okatan, S. Jesse, T. Aoki, M. R. McCartney, D. J. Smith, S. V. Kalinin, K. Lai, and A. A. Demkov, "Carrier density modulation in a germanium heterostructure by ferroelectric switching," Nat. Comm. 6, 6067 (2015).
L. Ji, M. D. McDaniel, L. Tao, X. Li, A. B. Posadas, Y.-F. Chang, A. A. Demkov, J. G. Ekerdt, D. Akinwande, R. S. Ruoff, J. C. Lee, and E. T. Yu, "Atomic Scale Engineering of Metal-Oxide-Semiconductor Photoelectrodes for Energy Harvesting Application Integrated with Graphene and Epitaxy SrTiO3," IEEE - Int. Electron. Devices Meet. (IEDM) 2014, 8.6.1.
A. O'Hara, T. N. Nunley, A. B. Posadas, S. Zollner, and A. A. Demkov, "Electronic and Optical Properties of NbO2," J. Appl. Phys. 116, 213705 (2014).
L. Ji, M. D. McDaniel, S. Wang, A. B. Posadas, X. Li, H. Huang, J. C. Lee, A. A. Demkov, A. J. Bard, J. G. Ekerdt, and E. T. Yu, "A silicon-based photocathode for water reduction with an epitaxial SrTiO3 protection layer and a nanostructured catalyst," Nat. Nanotechnol. (2014).
C. Mitra, C. Lin, A. B. Posadas, and A. A. Demkov, "Role of oxygen vacancies in room-temperature ferromagnetism in cobalt-substituted SrTiO3,'' Phys. Rev. B 90, 125130 (2014).
C. Hu, M. D. McDaniel, A. B. Posadas, A. A. Demkov, J. G. Ekerdt, and E. T. Yu, "Highly Controllable and Stable Quantized Conductance and Resistive Switching Mechanism in Single-Crystal TiO2 Resistive Memory on Silicon,'' Nano Lett. 14, 4360 (2014).
M. Choi, A. B. Posadas, C. A. Rodriguez, A. O'Hara, H. Seinige, A. J. Kellock, M. M. Frank, M. Tsoi, S. Zollner, V. Narayanan, and A. A. Demkov, "Structural, optical and electrical properties of strained La-doped SrTiO3 films," J. Appl. Phys. 116, 043705 (2014).
K. J. Kormondy, A. B. Posadas, A. Slepko, A. Dhamdhere, D. J. Smith, K. N. Mitchell, T. I. Willett-Gies, S. Zollner, L. G. Marshall, J. Zhou, and A. A. Demkov, "Epitaxy of polar semiconductor Co3O4 (110): growth, structure, and characterization," J. Appl. Phys. 115, 243708 (2014).
K. D. Fredrickson, P. Ponath, A. B. Posadas, M. R. McCartney, T. Aoki, D. J. Smith, and A. A. Demkov, "Atomic and electronic structure of the ferroelectric BaTiO3-Ge (001) interface," Appl. Phys. Lett 104, 242908 (2014).
M. D. McDaniel, A. Posadas, T. Q. Ngo, C. M. Karako, J. Bruley, M. M. Frank, V. Narayanan, A. A. Demkov, and J. G. Ekerdt, "Incorporation of La in epitaxial SrTiO3 thin films grown by atomic layer deposition on SrTiO3-buffered Si (001) substrates," J. Appl. Phys. 115, 224108 (2014).
M. D. McDaniel, T. Q. Ngo, A. Posadas, C. Hu, S. Lu, D. J. Smith, E. T. Yu, A. A. Demkov, and J. G. Ekerdt, "A Chemical Route to Monolithic Integration of Crystalline Oxides on Semiconductors,'' to appear in Advanced Materials Interfaces (2014).
A. B. Posadas, A. O'Hara, S. Rangan, R. A. Bartynski, and A. A. Demkov, "Band gap of epitaxial in-plane-dimerized single-phase NbO2 films," Appl. Phys. Lett. 104, 092901 (2014).
C. Hu, K. W. Park, A. Posadas, J. L. Jordan-Sweet, A. A. Demkov, and E. T. Yu, "Voltage-controlled ferromagnetism and magnetoresistance in LaCoO3/SrTiO3 heterostructures," J. Appl. Phys. 114, 183909 (2013).
A. B. Posadas, C. Lin, A. A. Demkov, and S. Zollner, "Bandgap engineering in perovskite oxides: Al-doped SrTiO3," Appl. Phys. Lett. 103, 142906 (2013).
R. C. Hatch, K. D. Fredrickson, M. Choi, C. Lin, H. Seo, A. B. Posadas, and A. A. Demkov, "Surface electronic structure for various surface preparations of Nb-doped SrTiO3 (001)," J. Appl. Phys. 114, 103710 (2013).
C. Dubourdieu, J. Bruley, T. M. Arruda, A. Posadas, J. Jordan-Sweet, M. M. Frank, E. Cartier, D. J. Frank, S. V. Kalinin, A. A. Demkov, and V. Narayanan, "Switching of ferroelectric polarization in epitaxial BaTiO3 films on silicon without a conducting bottom electrode," Nat. Nanotechnol. 8, 748 (2013).
T. Q. Ngo, A. Posadas, H. Seo, S. Hoang, M. D. McDaniel, D. Utess, D. H. Triyoso, C. B. Mullins, A. A. Demkov, and J. G. Ekerdt, "Atomic layer deposition of photoactive CoO/SrTiO3 and CoO/TiO2 on Si(001) for visible light driven photoelectrochemical water oxidation," J. Appl. Phys. 114, 084901 (2013).
A. A. Demkov, A. B. Posadas, H. Seo, M. Choi, K. J. Kormondy, P. Ponath, R. C. Hatch, M. D. McDaniel, T. Q. Ngo and J. G. Ekerdt, "Monolithic Integration of Oxides on Semiconductors," ECS Transactions 54, 255 (2013).
K. Fredrickson, A. B. Posadas, A. A. Demkov, C. Dubourdieu and J. Bruley, "Wetting at the BaTiO3 interface," J. Appl. Phys. 113, 184102 (2013).
R. Dargis, A. Clark, E. Arkun, R. Roucka, R. Smith, A. A. Demkov and M. Lebby, "Growth and application of epitaxial heterostructures with polymorphous rare-earth oxides," J. Cryst. Growth 378, 177 (2013).
H. Seo, A. B. Posadas, C. Mitra, J. Ramdani, A. V. Kvit, and A. A. Demkov, "Band alignment and electronic structure of the anatase TiO2/SrTiO3 heterostructure integrated on Si(001)," Phys. Rev. B 86, 075301 (2012).
M.D. McDaniel, A. Posadas, T. Wang, A. A. Demkov, and J. G. Ekerdt, "Growth and characterization of epitaxial anatase TiO2(001) on SrTiO3-buffered Si(001) using atomic layer deposition," Thin Solid Films 520, 6525 (2012).
H. Seo, A. B. Posadas, and A.A. Demkov, "First-principles study of the growth thermodynamics of Pt on SrTiO3 (001)", J. Vac. Sci. Technol. B 30, 04E108 (2012).
M.D. McDaniel, A. Posadas, T.Q. Ngo, A. Dhamdhere, D.J. Smith, A.A. Demkov and J.G. Ekerdt , "Growth of epitaxial oxides on silicon using atomic layer deposition: crystallization and annealing of TiO2 on SrTiO3-buffered Si(001)", J. Vac. Sci. Technol. B 30, 04E111 (2012).
R. Dargis, E. Arkun, A. Clark, R. Roucka, R. Smith, D. Williams, M. Lebby, and A.A. Demkov, “Rare-earth-metal oxide buffer for epitaxial growth of single crystal GeSi and Ge on Si(111)”, J. of Vac. Sci. Technol. B 30, (2012).
A.A. Demkov, A. Posadas, H. Seo and J.K. Lee, “Physics of oxides heterostructures’, ECS Trans. 41, 275 (2011).
A.A. Demkov, A. Posadas, H. Seo, J.K. Lee and N. Sai, “Emerging physics of oxide heterostructures”, phys. stat. sol. b, 248, 2076 (2011).
A. Posadas, M. Berg, H. Seo, D.J. Smith, H. Celio, A.P. Kirk, D. Zhernokletov, R.M. Wallace, A. de Lozanne, and A.A. Demkov, “Strain-induced ferromagnetism in LaCoO3: Theory and growth on Si (100)”, Microel. Eng. 88, 1444 (2011).
A. Posadas, R. Dargis, M. Choi, A. Slepko, J.J. Kim, D.J. Smith, and A.A. Demkov, “Formation of single-orientation epitaxial islands of TiSi2 on Si (001) using Sr passivation”, J. Vac. Sci. Technol. B 23, 1071 (2011)..
A. Posadas, M. Berg, H. Seo, D.J. Smith, H. Celio, A.P. Kirk, D. Zhernokletov, R.M. Wallace, A. de Lozanne, and A.A. Demkov, “Strain-induced ferromagnetism in correlated oxide LaCoO3 epitaxially grown on Si (100)”, Appl. Phys. Lett. 98, 055104 (2011).

References: V. 
 V. 
 V. 
 V. 
 V. 
 V.