Dr. Venkata Rama Rao Medicherla
Ph.D. (UGC-DAE CSR, Indore, India
Asst. Professor of Physics

Venkata Rama Rao M. joined the Institute in August, 2009

Institute of Technical Education & Research
Jagamohan Nagar, Khandagiri,
Bhubaneswar – 751030, India.
Phone : +91-674-2350181, 2351539. 2351777, 2351419
Fax : +91-674-2351880/2351217
Web: http://iter.ac.in/physics.php

House No:30/17, Gajapati Nagar, Bhubaneswar – 751005 , India

•  Electronic structure of solids
•  Photoelectron spectroscopy
•  Physics of surfaces and interfaces
•  Nanomaterials

•  Engineering Physics (UG)

•  Electronic structure of PdAg(100) ordered surface alloys using Synchrotron Radiation V.R.R. Medicherla and W. Drube (accepted for publication into Applied surface science).
• Evidence for strong 5d electron correlations in the pyrochlore Y2Ir2O7 studied using high-resolution photoemission spectroscopy R. S. Singh, V. R. R. Medicherla, Kalobaran Maiti, and E. V. Sampathkumaran, Phys. Rev. B 77, 201102(R) 2008.
• Electronic structure of PrCoO3 and its temperature evolution S.K. Pandey, Swapnil Patil, V.R.R. Medicherla, R.S. Singh and Kalobaran Maiti, Phys. Rev. B 77, 115137 (2008)
• Electronic Structure of BaPbO3 and Ba2PbO4 V.R.R. Medicherla, T. Shripathi and N.P. Lalla, J. Phys: Cond. Matter 20, 035219 (2008).
• Role of electron correlation and long range magnetic order in the electronic structure of Ca(Sr)RuO3 Ravi Shankar Singh, V.R.R. Medicherla and Kalobaran Maiti, Physica B: Condens. Matt. 403 1398 (2008).
• Investigation of the spin state of Co in LaCoO3 at room temperature S.K. Pandey, Ashwani Kumar, S. Patil, V.R.R. Medicherla, R.S. Singh, K. Maiti, D. Prabhakaran, A.T. Boothroyd, and A.V. Pimpale, Phys. ReV. B 77, 045123 (2008).

•  Role of long range ferromagnetic order in the electronic structure of Sr1-xCaxRuO3 Ravi Shankar Singh, V.R.R. Medicherla, Kalobaran Maiti, Appl. Phys. Lett. 91, 132503 (2007)
•  Evolution of a band insulating phase from a correlated metallic phase Kalobaran Maiti, Ravi Shankar Singh, V.R.R. Medicherla, Phys. Rev. B 76, 165128 (2007)
•  Origin of ground state anomaly in LaB6 at low temperatures V.R.R. Medicherla, Swapnil Patil, Ravi Shankar Singh and Kalobaran Maiti, Appl. Phys. Lett. 90, 062507(2007).
•  KLL Auger resonant Raman transition in metallic Cu and Ni L. Kövér, W. Drube, Z. Berényi, I. Cserny, V. R. R. Medicherla, T. Ishii, H. Ikeno and H. Adachi; Surf. Science 601, 1085 (2007).
•  Verification of the core hole clock method using two different time references: Attosecond charge transfer in c(4x2)S/Ru(0001) A. Föhlisch, S. Vijayalakshmi, F. Hennies, W. Wurth, V. R. R. Medicherla, W. Drube Chem. Phys. Lett. 434, 214 (2007).
•  Evidence of particle hole asymmetry and role of phonons in non-Fermi liquid behavior: A high-resolution photoemission study of ruthenates Kalobaran Maiti, Ravi Shankar Singh, and V.R.R. Medicherla, Eur. Phys. Lett. 78, 17002 (2007)

•  Metal to insulator transition in Sr2RuxIr1-xO4 M. V. Rama Rao, V. G. Sathe, D. Sorna Durai, B. Panigrahi and T. Shripathi; J. Physics and Chemistry of Solids, 61, 1989 (2000).
•  Quantum size EFfects in CuO nanoparticles Kavita Bargohain, J. B. Singh, M. V. Rama Rao, T. Shripathi and Shailaja Mahamuni Phys. ReV. B 61(16), 11093 (2000)
•  Microstructural study of Iron Nitride thin film deposited by Ion beam sputtering Mukul Gupta, Ajay Gupta, S. M. Chaudhari, D. M. Phase, V. Ganesan M. V. Rama Rao, T. Shripathi and B. A.Dasannacharya; Vacuum 60, 395 (2001).
•  Photoemission studies on Sm0.5Ca0.5MnO3 V. Sivasubramanian, M. V. Rama Rao, T. Shripathi, V. Subramanian and V. R. K. Murthy, Mat. Science and Engg. B77, 128 (2000).
•  Synthesis of TiN, VN, and CrN from Ammonolysis of TiS2, VS2, and Cr2S3 P. Subramanya Herle, M. S. Hegde, N. Y. Vasanthacharya, Sam Philip, M. V. Rama Rao and T. Shripathi; J. Solid State Chem. 134, 120 (1997).
•  Photoelectron spectroscopic study of X-ray induced reduction of CeO2 M. V. Rama Rao and T. Shripathi, J. Electron Spectrosc. and Related phenomen. 87, 121(1997).
•  Core Level Spectroscopy in Ban+1PbnO3n+1 series M. V. Rama Rao and T. Shripathi, J. Electron Spectrosc. and Related phenomen., 78, 159(1996).

•  2001-2004 Post-Doctoral Fellow, HASYLAB/DESY, Hamburg, Germany
•  2004-2007 Visiting Felllow , Dept. of Condesnsed Matter Physics, Tata Institute of Fundamental Research, Mumbai, India .
•  2007-2008 Sr. Postdoctoral Fellow, Institute of Physics, Bhubaneswar
•  2008-2009 Asst. Professor, APEX Institute of Technology and Management, Bhubaneswar, India

•  Electronic structure of PdAg(100) ordered surface alloys using Synchrotron Radiation V.R.R. Medicherla and W. Drube (presented in International conference on Physics at surfaces and Interfaces, Puri, India (2327thFeb. 2009)
•  Tantalum nanostructure formation by ion sputtering V.R.R. Medicherla, D. Paramanik, S. Majumdar, S.R. Sahoo, S.K. Choudhury and Shikha Varma INDO-US workshop on science and technology at the nano-bio interface, Feb 19-22, 2008, Bhubaneswar, India
•  Resonant KLL Auger Spectra photoexcited from Fe and Co metals L. Kover, W. Drube, Z. Berenyi, I. Cserny, V. R. R. Medicherla HASYLAB Annual Report 2003, Pt. 1, 423 (2004).
•  Core hole clock spectroscopy at the Sulphur K-edge to determine ultrafast charge transfer in c(4x2)S/Ru(0001) A. Fohlisch, S. Vijayalakshmi, F. Hennies, F., Wurth, W, V. R. R. Medicherla, W. Drube HASYLAB Annual Report 2003, Pt. 1, 727 (2004).
•  XPS study of Ta2O5 growth on Si(100) V. R. R. Medicherla and W. Drube HASYLAB Annual Report 2003, Pt. 1, 815 (2004)
•  Energy dependence of the electron shake up probability near K- shell photoionization threshold in X-ray absorption of 3d transition metals, L. Kövér, Z. Berényi, I. Cserny, L. Lugosi, W. Drube, T. Mukoyama, V. R. R. Medicherla
•  School on Biological Application of Synchrotron and Free Electron Laser Radiation, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary (2003). KLL Auger resonant Raman transition in metallic Cu and Ni L. Kövér, W. Drube., Z. Berényi , I. Cserny, V. R. R. Medicherla, T. Ishii, H. Ikeno, H. Adachi.,
•  Near threshold excitation of KLL Auger satellites from Cu and Ni metals L. Kover, Z.Berenyi, I.Cserny, T.Mukoyama, W.Drube, and V. R. R. Medicherla 9th International Conference on Electronic Spectroscopy and Structure iICESS-9), Uppsala, Sweden (2003).
•  XPS and NIXSW study of Ag-Pd surface alloying V. R. R. Medicherla and W. Drube HASYLAB Annual Report 1, 707 (2002).

•  National Merit Scholarship holder from 1983-1988 in India
•  Consolidation Prize in Math Olympiad conducted by Andhra Pradesh Association of Mathematics teachers in 1988
•  Qualified GATE-1991 with 87.7 percentile