Pavel Lukashev Post-Graduate Fellow     Department of  Physics University of  Nebraska  Omaha Durham science center 6001 Dodge Street. Omaha NE 68182 Tel:  (402) 554 3519 Email: plukashev@mail.unomaha.edu Pavel Lukashev's CV and list of publications Pavel Lukashev's Ph.D thesis

In Jacksonville, FL, November 2004

RECENT ACTIVITIES
Pavel's Electronic Structure Workshop Poster 2006
Pavel's APS Talk 2006
Pavel's ShowCASE Poster 2006
Pavel at the 2005 Summer School on Computational Materials Science in Urbana-Champaign, IL
Pavel's APS Talk 2005
Pavel's ShowCASE Poster 2004
Pavel 's APS Talk 2004

MAIN RESEARCH INTERESTS  

• Spintronic materials : The idea of spintronics is to utilize the spin of the electron as well as the charge in semiconductor devices. It faces materials challenges to merge magnetic materials with semiconductors. Our group focuses on the potential of transition metal and rare-earth compounds, in particular the nitrides. This work is currently sponsored by NSF and ONR. One of my main interest lies in the zincblende (ZB) materials FeN and CoN. Electronic structure calculations predict that these materials are non-magnetic in ZB phase with a slightly larger lattice constant than found experimentally. Later investigation showed that doping the system with In will increase the lattice constant to where the magnetic phase exists naturally.
• Copper compouds: Chalcosite Cu₂S and digenite Cu_1.8S are possibly interesting semiconductors for photovoltaic applications. Their electronic structure is poorly understood because their crystal structure is complex. It consists of a close-packed lattice of S with mobile Cu occupying various types of interstitial sites with a statistical distribution depending on temperature. Experimental results reported in literature show that Cu₂S is semiconductor with energy band gap of about 1 eV. Yet, our LDA calculations for perfect antifluorite structure reveal semimetallic properties of Cu₂S, with zero band gap. Distortion of the perfect antifluorite structure opens up a small gap. Other structures are also studied, including hcp wurtzite, which gives close to experimental electronic properties of the compound. Further work includes refinement of our calculations, as well as comparison with other Cu compounds, such as CuBr and Cu₂O. 
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PUBLICATONS

First-principles study for the preference for zinc-blende or rocksalt structures in FeNand CoN FeN and CoN, Pavel Lukashev and Walter R.L. Lambrecht, Physical Review B 70, 245205 (2004).
Magnetic properties of transition-metal nitrides Walter R.L. Lambrecht, M.S. Miao, and Pavel Lukashev, Journal of Applied Physics 97, 10D306 (2005).
First-principles study of the structural and magnetic properties of iron indium nitride, Pavel Lukashev and Walter R.L. Lambrecht, Journal of Applied Physics 97, 10D309 (2005).
Crystal structure, electronic structure, and magneticm of transition metal nitrides M.S. Miao, Pavel, Lukashev, Aditi Herwadkar and Walter R.L. Lambrecht, Physica Status Solidi C 2, 2516 (2005).

21st and 20th Century Physicists (See the resemblence?)

Sports "Center"  Los Angeles, CA  March 2005

Pavel in Paradise  Los Angeles, CA  March 2005

Pavel in Charm City  Baltimore, MD  March 2006

Research ShowCASE  Cleveland, OH  April 2006

The secret of my success - One week's worth of coffee

Additional Links
Pavel Lukashev, Student at Case Western Reserve University
See how much I love the China Buffet with review1 and 2. Also pictures!
Check out this useful link about semiconductor physics.

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Please send comments and suggestions to paul.larson@case.edu