Professor Lourdes Salamanca-Riba
Ph.D.,
Massachusetts Institute of Technology (MIT), 1985
Room 1244 Jeong H. Kim Engineering Building
E-mail: riba@umd.edu
Phone: (301) 405-5220
Research Interests and Current Projects
Dr. Salamanca-Riba's research is in the areas of multiferroic nanocomposites, DNA-based biosensors and radiation sensors on GaAs, semiconductor nanowires, and self-assembly for the formation of nanocomposite materials and structures.
Dr. Salamanca-Riba is also a member of the Materials Research Science and Engineering Center (MRSEC). Her research at the MRSEC is on the relation between processing parameters, structure and properties of oxide-based multiferroic materials. Her research involves the use of the transmission electron microscopes and the atomic force microscope at the Nanoscale Imaging, Spectroscopy, and Properties (NISP) Laboratory.
Her project on DNA attached to GaAs aims at understanding the anchoring mechanism between thiolated DNA and GaAs that gives rise to arrays of single stranded DNA molecules oriented normal to the surface of GaAs. These structures could be used for the fabrication of biosensors and radiation sensors.
Her third project is in the growth and characterization of semiconductor nanowire arrays of ZnO for the fabrication of light emitting devices.
See also: Research Spotlight: The Role of Multiphase Formation on the Properties of BiFeO3 Films »
TopGroup Members
- Romaine Antonio Isaacs
- Joshua Aaron Taillon
- Kim N. Tran
Teaching
Dr. Salamanca-Riba typically teaches the following courses:
- ENMA 671: Defects in Materials
This course emphasizes fundamental aspects of zero-, one- and two-dimensional defects in materials. The thermodynamic equilibrium of point defects in different oxide materials and their effect on the physical properties of the material are discussed. Dislocation-dislocation and dislocation-point defect interactions, dislocations in different crystals and roles of dislocations in deformation, twinning, and phase transformation are also discussed. The effects of dislocations and other defects on the electrical, optical and thermal properties of materials are discussed. - ENMA 680: Experimental Methods in Materials Science
This course covers the basic principles of electron microscopy theory, electron diffraction, and imaging theory. The electron beam sample interaction that gives rise to different signals is related to the structural and compositional information that is obtained from a sample using a TEM. The most common TEM techniques for structural characterization of a sample, namely, electron diffraction, bright/dark field imaging, and high resolution lattice imaging are discussed. Compositional information obtained from x-ray fluorescence and electron energy loss as well as the resolution of these techniques is also covered. A brief description of techniques used to study magnetic materials is also presented. - ENMA 683: Special Problems in Materials Science, Structural Determination Laboratory
This course covers the operation of an electron microscope. TEM techniques that are used to characterize the structure, defects, and composition of a sample are presented and used to study a variety of materials. These techniques are: electron diffraction patterns, bright/dark field imaging, high resolution lattice imaging and energy dispersive X-ray spectroscopy. This course also covers different sample preparation techniques for TEM. The goal of the course is that the students become independent users of the TEM. The main objective in this class is to become an independent user of the TEM. This is achieved by learning:
- to align the beam in a transmission electron microscope
- to operate the TEM by
tilting the sample to the desired orientation - taking a diffraction pattern
- taking bright/dark field images
- how to analyze the images
- to obtain energy dispersive X-ray spectra
- to obtain high resolution lattice images
Recent Publications
"Effects of Substrate Preparation on the Defect Generation in ZnSe Films Grown on GaAs by MBE," H.Y. Wei, L. Salamanca-Riba, J. Smathers, and B.T. Jonker (in preparation).
"Sb as a Surfactant in the MBE Growth of ZnSe Films on GaAs Substrates," H.Y. Wei, L. Salamanca-Riba, J. Smathers, and B.T. Jonker (in preparation).
"Strain Relaxation Mechanism in CdTe/ZnTe Films Grown on Si (211) as a Function of Growth Procedure," H.Y. Wei, L. Salamanca-Riba, and N.K. Dahr (in preparation).
"Effect of thickness on the nanostructural pattern evolution and ferro-electric-magnetic properties of barium titanate-cobalt ferrite thin films," Haimei Zheng, Ladan Mohaddes-Ardabili, Junling Wang, S. Y. Yang, L. Salamanca-Riba, M. P. Cruz, and R. Ramesh, Appl Phys. Lett. (submitted)
---
"In-situ Observation of Reversible Nanomagnetic Switching Induced by Electric Fields," T. Brintlinger, S. -H. Lim, K. H. Baloch, P. Alexander, Y. Qi J. Barry, J. Melngailis, L. Salamanca-Riba, I. Takeuchi, & J. Cumings, In press, Nano Letters (2010).
"Exchange Bias in thin film (Co/Pt)3/Cr2O3 Multilayers," S. -H. Lim, M. Murakami, S. E. Lofland, A. J. Zambano, L. G. Salamanca-Riba, and I. Takeuchi, J. Magn. Magn. Mater. 321, 1955-1958 (2009).
"Structural transitions and complex domain structures across a ferroelectric-to-antiferroelectric phase boundary in epitaxial Sm-doped BiFeO3 thin films," C. -J. Cheng, D. Kan, S.-H. Lim, W. R. McKenzie, P. R. Munroe, L. G. Salamanca-Riba, R. L. Withers, I. Takeuchi, and and V. Nagarajan, Phys. Rev. B 80, 014109 (2009).
"Enhanced conductivity of n-InGaZn6O9 films and its rectifying characteristics with p-SiC," R. K. Sahua, R. D. Visputea, S. Dhara, D. C. Kundaliyaa, S. Sundar Manoharana, T. Venkatesana, S. -H. Lim, and L. G. Salamanca-Riba, Thin Solid Films 517, 1829-1832 (2009).
"Synthesis and characterization of Nb2AlC thin films," T. H. Scabarozi, J. Roche, A. Rosenfeld, S. -H. Lim, L. G. Salamanca-Riba, G. Yong, I. Takeuchi, M. W. Barsoum, J. D. Hettinger, and S. E. Lofland, Thin Solid Films 517, 2920-2923 (2009).
"Role of oxygen partial pressure and seed layer chemistry in flux mediated epitaxy of single phase multiferroic BiFeO3 thin films," V. Anbusathaiah, C. J. Cheng, S. –H. Lim, M. Murakami, L. G. Salamanca-Riba, I. Takeuchi, and V. Nagarajan, Appl. Phys. Lett. 93, 192906 (2008).
"Effect of Ru-Mn redox interactions on the hole carrier density in Pulsed Electron deposited La1-xPbxMn0.2Ru0.2O3 (0.2≤x≤0.4) thin films," S. S. Manoharan, B. Singh, R. K. Sahu, A. Zimmer, S. -H. Lim, L. G. Salamanca-Riba, and V. Chandra, J. of Phys. Condens. Metter 20, 235205 (2008).
"Structural and Magnetic Properties of Cubic Zirconia/Co Composites Synthesized by Microwave Route," T. R. Sahoo, S. S. Manoharan, S. -H. Lim, and L. G. Salamanca-Riba, Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 38, 3, 280-283 (2008).
"Combinatorial discovery of a lead-free high Tc piezoelectric perovskite at a morphotropic phase boundary," S. Fujino, S. -H. Lim, M. Murakami, V. Nagarajan, C. J. Fennie, K. M. Rabe, M. Wuttig, L. Salamanca-Riba, and I. Takeuchi, Appl. Phys. Lett. 92, 202904 (2008).
"Enhanced dielectric properties in single crystal-like BiFeO3 thin films grown by flux-mediated epitaxy," S.-H. Lim, M. Murakami, J. H. Yang, S.-Y. Young, J. Hattrick-Simpers, M. Wuttig, L. G. Salamanca-Riba, and I. Takeuchi, Appl. Phys. Lett. 92, 012918 (2008).
Abstract » | Full Text (PDF) » | DOI 10.1063/1.2831665
Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
"Magneto-resistive behavior in hole doped La1-xPbxMn0.2Ru0.2O3 (0.2≤x≤0.4) epitaxial thin films," S. S. Manoharan, B. Singh, S. -H. Lim, V. Chandra, A. Zimmer, L.G. Salamanca-Riba, J. of Appl. Phys. 103, 07F709 (2008).
"Niobium doped TiO2: Intrinsic transparent metallic anatase versus highly resistive rutile phase," S. X. Zhang, D. C. Kundaliya, W. Yu, S. Dhar, S. Y. Young, L. G. Salamanca-Riba, S. B. Ogale, R. D. Vispute, and T. Venkatesan, J. Appl. Phys. 102, 013701 (2007).
"Magnetism and anomalous Hall effect in Co-(La,Sr)TiO3," S.X. Zhang, W. Yu, S.B. Ogale, S.R. Shinde, D.C. Kundaliya, Wang-Kong Tse, S.Y. Young, J.S. Higgins, L.G. Salamanca-Riba, M. Herrera, L.F. Fu, N.D. Browning, R.L. Greene, and T. Venkatesan, Phys. Rev. B 76, 085323-6 (2007).
"Heteroepitaxially Enhanced Magnetic Anisotropy in BaTiO3-CoFe2O4 Nanostructures," Haimei Zheng, Jens Kreisel, Ying-Hao Chu, R. Ramesh, and Lourdes Salamanca-Riba, Appl. Phys. Lett. 90, 113113-6 (2007).
"Ferroelectric properties of multiphase Bi-Fe-O thin films," S. Fujino, M. Murakami, S. -H. Lim, M. Wuttig, L. G. Salamanca-Riba, and I. Takeuchi, Solid State Ionics 178, 1257 (2007).
“Microstructural characterization of multiphase formation in multiferroic BiFeO3 thin films,” S. -H. Lim, M. Murakami, W. L. Sarney, S. Q. Ren, A. Varatharajan, V. Nagarajan, S. Fujino, M. Wuttig, I. Takeuchi, and L. Salamanca-Riba, Adv. Funct. Mater. 17, 2594 (2007).
"Multiphase growth in Bi-Mn-O thin films,”" S. Fujino, M. Murakami, S. -H. Lim, L. G. Salamanca-Riba, M. Wuttig and I. Takeuchi, J. of Appl. Phys. 101, 013903 (2007).
"Fabrication of multiferroic epitaxial BiCrO3 thin films," M. Murakami, S. Fujino, S. -H. Lim, C. J. Long, V. Nagarajan, A. Varatharajan, L. G. Salamanca-Riba, M. Wuttig and I. Takeuchi, Appl. Phys. Lett. 88, 162902 (2006).
"Microstructure and phase control in Bi-Fe-O multiferroic nanocomposite thin films," M. Murakami, S. Fujino, S. -H. Lim, B. Varughese, H. Sugaya, T. Hasegawa, S.E. Lofland, L. G. Salamanca-Riba, M. Wuttig, and I. Takeuchi, Appl. Phys. Lett. 88, 112505 (2006).
"Size and shape evolution of embedded single-crystal α-Fe nanowires," L. Mohaddes-Ardabili, H. Zheng, Q. Zhan, S. Y. Yang, R. Ramesh, L. Salamanca-Riba, M. Wuttig, S. B. Ogale, and X. Pan, Appl. Phys. Lett. 87, 203110-3 (2005).
"On the Origin of High Temperature Ferromagnetism in Low Temperature Processed Mn-Zn-O System," Darshan C. Kundaliya, S. B. Ogale, S. E. Lofland, S. Dhar, C. J. Metting, S. R. Shinde, Z. Ma, B. Varughese, K.V. Ramanujachary, L. Salamanca-Riba, and T. Venkatesan, Nature Materials 3, 709-14 (2004).
"Evidence for power-law frequency dependence of intrinsic dielectric response in the CaCu3Ti4O12," Alexander Tselev, Charles M. Brooks, Steven M. Anlage, Haimei Zheng, Lourdes Salamanca-Riba, R. Ramesh, and M. A. Subramanian, Phys. Rev. B 70, 144101-8 (2004).
"Suppression of Antiphase Domain Boundary Formation in Ba0.5Sr0.5TiO3 films grown on vicinal MgO substrates," H. Zheng, L. Salamanca-Riba, R. Ramesh, and H. Li, Appl. Phys. Lett. 85, 2905-7 (2004).
"Radiation-induced failure mechanisms of GaAs-based biochips," M. Al-Sheikhly, D. Sweet, L. Salamanca-Riba, B. Varughese, J. Silverman, A. Christou, and W. Bentley, IEEE, Device and Materials Reliability, 4, 192-7 (2004).
"Self-assembled Perpendicular Ferromagnetic Iron Nanowires Through Spontaneous Phase Decomposition in La0.5Sr0.5FeO3 Films Grown on SrTiO3 Substrates," L. Mohaddes-Ardabili1, H. Zheng, S. B. Ogale, B. Hannoyer, W. Tian, J. Wang, S. E. Lofland, S. R. Shinde, T. Zhao , L. Salamanca-Riba, D. G. Schlom, M. Wuttig and R. Ramesh, Nature Materials 3, 533 (2004).
"Three dimensional heteroepitaxy in self-assembled BaTiO3-CoFe2O4 nanostructures," H. Zheng, J. Wang, L. Mohaddes Ardabili, D.G. Schlom, M. Wuttig, R. Ramesh, and L. Salamanca-Riba, Appl. Phys. Lett. 85, 2035-7 (2004).
"Structural analysis of DNA monolayers on GaAs surface", Luz J. Martínez-Miranda, Ladan Mohaddes Ardabili, Lourdes G. Salamanca-Riba, Aristos Christou, Joseph Silverman, William E. Bentely , Mohamad Al-Sheikhly, J. Appl. Phys. 95, 6021-4 (2004).
"Characterization of a-Si:H resists for a vacuum-compatible photolithography process," R. N. Jacobs, J.H. Dinan, and L. Salamanca-Riba, J. Vac. Sci. and Technol. 22, 1141-4 (2004).
"Multiferroic BaTiO3-CoFe2O4," H. Zheng, J. Wang, S. E. Lofland, Z. Ma, L. Mohaddes-Ardabili, T. Zhao, L. Salamanca-Riba, S. R. Shinde, S. B. Ogale, F. Bai, D. Viehland, D. G. Schlom, M. Wuttig and R. Ramesh, Science 303, 661-3, 2004.
"Systematic Study of Effects of Growth Conditions on the (Nano-, Meso-, Micro) size and (one-, two-, three-dimensional) Shape of GaN Single Crystals Grown by a Direct Reaction of Ga with Amonia," Aya Moustafa Sayed ElAhi, Maoqi He, Peizhen Zhou, G.L. Harris, Lourdes Salamanca-Riba, Frederick Felt, Harry C. Shaw, Ashok Sharma, Muzar Jah, Darryl Lakins, Todd Steiner, and S. Noor Mohammad, J. Appl. Phys. 94, 7749-56 (2003).
"InAs Nanowires and Whiskers Grown by Reaction of In with GaAs," Maoqi He, M.M.E. Fahmi, S. Noor Mohammad, Randolph N. Jacobs, Lourdes Salamanca-Riba, Frederick Felt, Muzar Jah, Ashok Sharma, and Darryl Lakins, Appl. Phys. Lett. 82, 3749-51 (2003).
"Attachment of DNA probes on gallium arsenide surface" Ladan Mohaddes-Ardabili, Luz J. Martinez-Miranda, Joseph Silverman, Aristos Christou, Lourdes G. Salamanca-Riba, Mohamad Al-Sheikhly, William E. Bentley, and F. Ohuchi, Appl. Phys. Lett. 83, 192-4 (2003).
"The role of Pb excess in the crystallization of PZT films derived via sol-gel processing," Randolph N. Jacobs, and L. Salamanca-Riba, J. Mater. Res. 18, 1405-11 (2003).
"Ordering on LSAT Substrates," Hao Li, L. Salamanca-Riba, R. Ramesh, and J.H. Scott, J. Mater. Res. 17, 1698-1704 (2003).
Selected Older Publications
"Origin of Antiphase Domain Boundaries and their Effect on the Dielectric Constant of Ba0.5Sr0.5TiO3 Films Grown on MgO Substrates," Hao Li, H. Zheng, L. Salamanca-Riba, R. Ramesh, I. Naumov, and K. Rabe, Appl. Phys. Lett. 81, 4398-4400 (2002).
"The Concept of High Angle Wedge Polishing and Thickness Monitoring in TEM Sample Preparation," Hao Li and L. Salamanca-Riba, Ultramicroscopy 88, 171-8 (2001).
"Columnar defect induced phase transformation in La0.7Ca0.3MnO3," S.B.Ogale, Y.H.Li, M.Rajeswari, L. Salamanca-Riba, R. Ramesh, T. Venkatesan, A. J. Millis, Ravi Kumar, G. K. Mehta, R.V. Bathe, S. I. Patil, J. Appl. Phys.87, 4210-5 (2000).
Book Chapters
"Compound and Alloy Semiconductor Superlattices," L. Salamanca-Riba, Chapter F.6 in Handbook of Thin Semiconductor Films, 1997
Selected Invited Talks
"Evidence for Superhydrogenic Ce Doping of Lu2O3 Films," APS March Meeting 2010, March 15-19, 2010, abstract #X24.001.
"Microstructural Characterization of Multiphase Formation and its Effect on the Properties of Multiferroic Thin Films", Physics Symposium, Ensenada, Mexico, February, 2007.
"Multiferroic BiFeO3, Formation and Properties", 2007 Joint Annual Conference of the National Society of Black Physicists (NSBP) and the National Society of Hispanic Physicists (NSHP), Boston, Mass., February 2007.
- Air Force Science Advisory Board of the National Academies (Elected)
- American Physical Society
- Electron Microscopy Society of America
- Materials Research Society
