2347 AV Williams Building
College Park, MD 20742
Prof. Gomez received his Ph.D. from the University of
Maryland, College Park,
specializing in Condensed Matter Physics and Surface Science. Prior to this,
he obtained an MS degree from Wayne State
University in Experimental Atomic Physics and a BS degree from the
University of the Philippines.
His Ph.D. work was the development of scanning tunneling microscopy to probe
the atomic structures of semiconductor surfaces. Since then he became
interested in information storage technology and the fundamental nanotechnological properties of magnetic thin films. He
is actively engaged in the development of scanned probe magnetic microscopy
to understand the physics of magnetism at reduced dimensions as well as the
development new magnetic devices that utilize the novel magnetic properties
at the nanometer length scales. He has authored over 60 papers, a book
chapter and holds 2 U.S. Patents on this and other related subjects. He has
served in various positions with the IEEE Magnetics
Society, including an editor and Publication Chair of
Intermag 2000 and the 8th Joint MMM-Intermag Conference in 2001 and a member of the IEEE
Transaction of Magnetics Editorial Board. In 2004,
he was appointed as the General Chair of Intermag
2006 and the Chair of the Technical Committee of the IEEE Magnetics
Society. He was awarded the department's 1998 George Corcoran Award for
significant contributions to engineering education and the National Science
Foundation CAREER award in 2000. He is particularly proud of being recognized
as an influential educator in the 2001 Celebrating Teachers Program of
University of Maryland's Center for Teaching Excellence.
Magnetism, Nanodevices, Surface Science,
Biochemical Detection, Instrumentation Development
Gomez research interests lie in the broad areas of magnetism, nanotechnology
and biochemical detection with emphasis on the phenomena and processes at the
atomic and molecular length scales. He directs a modest group of postdoctoral
associates and students (Nano/Magnetics) who seek
to understand and exploit novel quantum effects that manifest themselves at
reduced dimensions and size.
Research Website: Nanomagnetics
Outreach and Research Nuggets:
Please visit the Nanomagnetics
Group website under Educational Outreach to find an informative gallery of images of
data bits on a hard
disks , magnetic
moment switching of small islands ,
novel films, magneto-optic data erasure,
imaging the current
and voltages on a tiny strip of wire, and other cool stuff. You can find
animations of water condensing on a surface ,
magnetic domain wall
motion in small NiFe elements, magnetic switching
behavior of submicron cobalt islands and magnetic domain wall
propagation using pulsed current.
publications & additional information Click here)
S. H. Florez, C. Krafft, and R. D.
Gomez, “Spin Current Induced
Magnetization Reversal in Magnetic Nanowires with
Constrictions”, Journal of Applied Physics 97, 2005, 10C705.
M. Dreyer, J.
Lee, C. Krafft and R.D. Gomez, “(Towards)
Spin polarized STM of NiFe films on Cr(001) single
crystal: growth and electronic structure”, Journal of Applied Physics
97, 2005, 10E703.
H. Pandana, L. Gan, M. Dreyer, C. Krafft and R.D. Gomez, “Magnetoresistance
of ferromagnetic point junctions from tunneling to direct contact
regimes”, IEEE Transactions on Magnetics 40,
no.4, pt.2, July 2004.2266-8.
H. Florez, M. Dreyer, K. Schwab, C. Sanchez, and R.
D. Gomez, “Magnetoresistive
effects in planar NiFe nanoconstrictions”,
Journal of Applied Physics 95, 2004, 6720.
M. Dreyer, H. Pandana, and R. D. Gomez, “Scanning Tunneling
Spectroscopy of Individual Iron Atoms on a Permalloy
Surface”, IEEE Trans. Mag., 39, (5), 2003,
R. D. Gomez, C. J. Powell, R. D. McMichael, P. J.
Chen, and W. F. Egelhoff, Jr., “Thin Al, Au,
Cu, Ni, Fe, and Ta films as oxidation barriers for Co in air”, J. Appl. Phys., 93, (10), 2003, 8731
S. H. Chung, M.
Munoz, N. Garcia, W. F. Egelhoff, and R. D. Gomez,
“Universal scaling of ballistic magnetoresistance
in magnetic nanocontacts”, Phys. Rev. Lett. 89, 287203, 2002.
C. Krafft, and R. D. Gomez,
"Current-controlled bi-stable domain configurations in Ni81Fe19
elements: An approach to magnetic memory devices," Appl.
Phys. Lett., vol. 81, pp. 862-864, 2002.
ENEE 204, “Basic Circuits Theory”
TuTh 9:30-10:45 Kim Eng Bldg Rm.
Office hours: 11-12, 1-3 TuTh or
ENEE 204, “Introductory Basic Circuit Theory”,
Fall 2002, Fall 2004
ENEE 302, “Microelectronics I’, Spring 1997,
Spring 1998, Fall 1998
ENEE 312H, “Microelectronics II Honors”,
ENEE 380, “Electromagnetic Theory I”, Spring
1999, Spring 2000, Spring 2001
ENEE 488/489M, “Magnetic Information Storage
Technology”: Fall 1996, Fall 1997
ENEE 489Q, “Introduction to Quantum Physics for
Engineers”, Spring 2005
ENEE 608D, “Electrophysics
Graduate Seminar”, Fall 1997
ENEE 680, “Graduate Level: Electromagnetic Theory
I”, Fall 2001
ENEE 690, “Graduate Level: Quantum and Wave
Phenomena”, Fall 99, Fall 00,
ENEE 789G, “Graduate Level: Theory and Applications
of Magnetism”, Spring 2002