Igor V. Roshchin

FACE

Address:
Igor Roshchin
Department of Physics
University of California - San Diego
9500 Gilman Drive
La Jolla, CA 92093-0319

phone: (858) 534-7161 (lab)
fax:   (858) 534-0173  
email: igor [ at ] physics.ucsd.edu   (work) 
email: igor [ at ] komkon.org         (personal)

line

Ph.D. (Physics) 2000; M.S. 1999, University of Illinois at Urbana-Champaign (UIUC)
M.S. (Physics) 1993, Moscow Institute of Physics and Technology - PhysTech (MIPT), Russia.

Scientific interests:

Condensed matter physics, physics of nanostructures, mesoscopic systems, magnetism, superconductivity, proximity effects, physical and bio-chemical nanosensors.

Curriculum Vitæ

Science

My scientific background, interests, etc.

My recent major research topics:

Studies of tunneling in magnetic tunnel junctions (MTJ).
Magnetism of nanostructures (sub-100nm magnetic are fabricated by various methods including selfassembly in alumina masks by anodization).
Exchange bias in multilayers, thin films and nanostructures.
Fabrication of nanostructures by self-assembly techniques.
Photonic crystal structures for physical, chemical and biological sensors.
Capillary condensation in mesopores

I also participate in other smaller projects.

You can see more details of my recent and present research and achivements.

Selected Publications:

Chang-Peng Li, Igor V. Roshchin, Xavier Batlle, M. Viret, F. Ott, and Ivan K. Schuller, "Fabrication and structural characterization of highly ordered sub-100 nm planar magnetic nanodot arrays over 1 cm² coverage area." Journal of Applied Physics, 100, 074318 (2006).
I. V. Roshchin, O. Petracic, R. Morales, Z.-P. Li, X. Batlle, and I. K. Schuller, " Lateral length scales in exchange bias", Europhysics Letters, 71, 297-303, (2005)
S. Roy, M. R. Fitzsimmons, S. Park, M. Dorn, O. Petracic, I. V. Roshchin, Zhi-Pan Li, X. Batlle, R. Morales, A. Misra, X. Zhang, K. Chesnel, J. B. Kortright, S. K. Sinha and Ivan K. Schuller, "Depth profile of uncompensated spins in the antiferromagnetic layer of an exchange bias system", Physical Review Letters 95, 047201 (2005).
J. J. Akerman, I. V. Roshchin, J.M. Slaughter, R. W. Dave and I. K. Schuller "Origin of Temperature Dependence in Tuneling Magnetoresistance", Europhysics Letters 63(1), 104-110 (2003).
Kai Liu, J. Nogues, C. Leighton, H. Masuda, K. Nishio, I. V. Roshchin, and Ivan K. Schuller "Fabrication and Thermal Stability of Arrays of Fe Nanodots", Applied Physics Letters 81, 4434-4436 (2002).
This article was selected for publication in the Virtual Journal of Nanoscale Science & Technology--December 9, 2002 Volume 6, Issue 24
I. V. Roshchin, J. Yu, A. D. Kent, G. W. Stupian, and M. S. Leung, "Magnetic Properties of Fe Microstructures with Focused Ion Beam-Fabricated Nano-Constrictions", IEEE Transactions on Magnetics 37 , 2101-2103 (2001). (preprint with good image quality)
I. V. Roshchin, A. C. Abeyta, L. H. Greene, T. A. Tanzer, J. F. Dorsten, P. W. Bohn, S.-W. Han, P. F. Miceli, J. F. Klem, "Observation of the Superconducting Proximity Effect in Nb/InAs and NbN_x/InAs by Raman Scattering", Physical Review B 66, 134530 (2002).
This article was selected for publication in the Virtual Journal of Applications of Superconductivity--November 1, 2002 Volume 3, Issue 9
A. V. Pronin, M. Dressel, A. Pimenov, A. Loidl, I. V. Roshchin, L. H. Greene "Direct Observation of the Superconducting Energy Gap Developing in the Conductivity Spectra of Niobium", Physical Review B 57, 14416-14421 (1998).
L. H. Greene, I. V. Roshchin, A. C. Abeyta, G. Kuchler, J. F. Dorsten, T. A. Tanzer, W. L. Feldmann, and P. W. Bohn, "Raman Scattering as a Probe of the Superconducting Proximity Effect", Plenary Proceedings of the XXI International Conference on Low-Temperature Physics (LT21), Prague, Czech Republic, August 8-14, 1996. Czechoslovak Journal of Physics 46, S6, 3115-3122 (1996).
I. V. Roshchin, V. N. Stepankin, Yu. P. Yakovets, M. A. Baranov, A. V. Kuznetsov, D. I. Zhigunov, S. V. Sheeryaev, "Anomalous behavior of the critical current of a grain-boundary Josephson junctions in a bulk (Ba,K)BiO₃", JETP Letters, 59, 168-172 (1994) (Pis'ma V Zh. Eksp. Teor. Fiz., 59, 159-162 (1994)).

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