Professor Lourdes Salamanca-Riba
Ph.D.,
Massachusetts Institute of Technology (MIT), 1985
Room 1224 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
- Sung-Hwan Lim
Project title: Synthesis and Characterization of Multiferroic Thin Films - Joon Hyuk Yang
Project title: The Attachment and Characterization of DNA Probes on GaAs-based Semiconductor Surfaces - Sheng Yu (Darren) Young
Project Title: Synthesis and Characterization of ZnO Nanowires. - Jennifer Wolk
Project title: Friction Stir Welding of Ti 5111 - Kim N. Tran
Project title: Soldering issues in Al
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
"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.
"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).
"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. (in press)."Combinatorial discovery of a morphotropic phase boundary in Bi1-xSmxFeO3," S. Fujino, M. Murakami, V. Nagarajan, S.-H. Lim, A. Varatharajan, C. Fennie, M. Wuttig, L. Salamanca-Riba, and I. Takeuchi, Submitted to Appl. Phys. Lett.
"Ferroelectric properties in multiphase Bi-Fe-O thin films" S. Fujino, M. Murakami, S.-H. Lim, M. Wuttig, L. G. Salamanca-Riba and I. Takeuchi, Submitted to Solid State Ionics.
"The combinatorial study of multiferroic BiFeO3 thin film grown by flux-mediated epitaxy (FME)," S. -H. Lim, M. Murakami, J.H. Yang, S. Fujino, M. Wuttig, I. Takeuchi, L. Salamanca-Riba, submitted to Adv. Funct. Mater (2007).
"Microwave prepared nanocrystalline Ni wire and sponge under ambient conditions: A template-free method," R. K. Sahu, A. K. Ray, S. S. Manoharan, S. Arora, T. Mishra1, S-H. Lim, L.G. Salamanca-Riba, D. C. Kundaliya and L. C. Pathak, submitted to J. of Mater. Res. (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).
"Growth parameters and magneto-resistive properties of pulsed electron deposited Ru doped lanthanum manganite films on LaAlO3 (100)" S.S. Manoharan, B. Singh, A. Zimmer, R.K. Sahu, S. –H. Lim, V. Chandra, L.G. Salamanca-Riba, R.L. Greene, T. Venkatesan, J. of Mater. Res. (2006) in press
"Study on the mechanism of nano Ni wire formation under ambient conditions using microwave radiation." R. K. Sahu, A.K. Ray, S.S. Manoharan, S. Arora, T. Mishra, S. -H. Lim, L.G. Salamanca-Riba, D. C. Kundaliya, L.C. Pathak submitted to Chem. Mater. (2006)
"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 (in press).
Heteroepitaxially Enhanced Magnetic Anisotropy in BaTiO3-CoFe2O4 Nanostructures," Haimei Zheng, Jens Kreisel, Ying-Hao Chu, R. Ramesh, and Lourdes Salamanca-Riba, Appl. Phys. Lett. In press.
"Microstructural Characterization of Multiphase Formation in Bi-Fe-O Multiferroic Thin Films," SH Lim, M. Murakami, S. Fujino, SQ Ren, M. Wuttig, I. Takeuchi, L. Salamanca-Riba, and W.L. Sarney, Advanced Functional Materials. (in press)
"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, L. G. Salamanca-Riba, M. Wuttig and I. Takeuchi, Bindhu Varughese, H. Sugaya, T. Hasegawa, V. Nagarajan and A. Varatharajan and S. E. Lofland, Appl. Phys. Lett. 88, 112505-7 (2006).
"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)
"Size and Shape Evolution of Self-assembled Embedded Single Crystal a- Fe Nanowires Grown By Pulsed Laser Deposition," L. Mohaddes-Ardabili, H. Zheng, Q. Zhan, S. Y. Yang, L. Salamanca-Riba, M. Wuttig, R. Ramesh, S. B. Ogale, and D. G. Schlom, Appl. Phys. Lett. (submitted).
"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
"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
