Contact:

Office:

Hodges Hall 210 D

PO Box 6315

Phone & e-mail:

(304) 293-3422/ext 1427

mario.freamat@mail.wvu.edu

Education:

                 University of Kentucky, PhD, 2004

                 University of Kentucky, MS, 2000

                 University of Bucharest, Romania, BS, 1994

Research interests:

Formerly a theorist with an expertise in nonlinear phenomena, I am now a solid state physics experimentalist. My main area of interest is in the phenomenology associated with strongly correlated electron systems. The corresponding classes of compounds (cuprates, ruthenates, manganites etc.) exhibit very rich phase diagrams most oftenly not yet completely understood. For example, depending on temperature, magnetic field, pressure or doping, some of these materials can experience transitions between worlds of fascinating ground states at the core of the research in modern condensed matter physics: unconventional superconductivity, unusual magnetic ordering, spin and charge pattern formation in low dimensional crystal structures, heavy fermion systems etc. Most of my research employed experimental techniques such as tunneling spectroscopy (including STM), calorimetry, magnetometry and electro-optical spectroscopy. I’m also interested in spintronics and magnetoelectronic devices involving ultra-thin film microcircuitry. Currently I’m working with Dr. Urazhdin and Dr. Lederman in the WVU Physics Dept. studying quantum effects in ultra-thin films grown primarily using molecular-beam epitaxy.

Recent publications:

L. Ladino, J. W. Brill, M. Freamat, M. Uddin, and D. Dominko Dynamics of the electro-optic response of blue bronze K_0.3MoO₃, Phys. Rev. B 74, 115104 (2006)

 J.W. Brill, L. Ladino, M. Freamat, M. Uddin, and R.C. Rai, Dyamics of the electro-optic response of charge-density-wave conductors, J. Phys. IV (Paris) 131, 135 (2005).

 M. Freamat, X.N.Lin, V.Durairaj, S.Chikara, G.Cao, J.W. Brill, Thermal and magnetic properties of the spin-chain material, Pr₃RuO₇, Phys. Rev. B 72, 014458 (2005)

M. Freamat and K.-W. Ng, Andreev bound states in normal and ferromagnet/high-T_c superconducting tunnel junctions, Physica C, 400/1-2, 1-6 (2003), Science Direct doi:10.1016/S0921-4534(03)01318-2

 M. Freamat and K.-W. Ng, Order parameter oscillations in Fe/ Ag / Bi₂Sr₂CaCu₂O_8-d tunnel junctions, Phys. Rev. B, 68, 060507(R) (2003)

 M. H. Badr, M. Freamat, Y. Sushko, and K.-W. Ng, Temperature and field dependence of the energy gap of MgB₂ /Pb planar junctions, Phys. Rev. B, 65, 184516 (2002)