Raghu Chatanathodi Assistant Professor, Physics Dept. of Science & Humanities National Institute of Technology Calicut Calicut 673601, Kerala Tel: +91-495-2286551 E-mail: raghuc@nitc.ac.in Profile Assistant Professor for Physics, Dept. of Science & Humanities, National Institute of Technology - Calicut. Research experience includes numerical methods to study quantum many-body problems like Exact Diagonalization, DMRG, Quantum Monte Carlo, ab-initio methods like LMTO, LAPW, application of exact diagonalization and DMRG methods to various model Hamiltonians, matrix eigenvalue computations and Physics modeling for X-Ray radiography Personal Information Born 1 January 1972, Male, n citizen. Educational Qualifications Ph. D, n Institute of Science, Bangalore, (2002). M. Sc (Physics), University of Hyderabad, (1995). B. Sc. Ed (Science and Education), University of Mysore, (1993). Doctoral Thesis Numerical studies on Electronic and Magnetic properties of Molecular and extended low-dimensional systems, IISc, Bangalore 2002. Positions Held Asst. Professor, Physics, Dept. of Science & Humanities NIT-Calicut (Dec 2006 onwards) Research Scientist, NDE Modeling lab, GE Global Research Center, Bangalore (2004 Aug 2006 Dec). Post-doctoral fellow, n Institute of Science, Bangalore (2004 Mar 2004 Aug). Post-doctoral fellow, Arizona State University, Tempe, Arizona, USA (2002-2004). Professional Experience Industrial Experience As a part of the Radiography team in NDE Modeling lab, I have gained experience in various aspects of physics based modeling of radiographic imaging, like X-Ray spectrum modeling, Radiation-matter interaction and detector modeling. I have also gained experience in Monte Carlo based study of X-ray photon transport in metals. Other experience involves use of positron
spectroscopy for materials characterization, study of new phosphor materials to be used for X-ray imaging. Academic Experience As Asst. Professor for Physics, I have some experience teaching undergraduate Physics courses for engineering students at NIT-Calicut. Research Experience As an Institute Fellow, IISc, I have some experience using first principles calculation of electronic structure of important electronic and magnetic materials using commercially available software packages like WIEN 2000, Abinit etc., specifically for half-metallic oxide materials and dilute magnetic semiconductors. (with Prof. D. D. Sarma, n Institute of Science) As a Research Fellow, Arizona State University, I have taken part in Development of Quantum Monte Carlo methods for electronic structure calculations, mainly Variational and Diffusion Monte Carlo for many electron systems, with the aim of simulating magnetic properties from first principles.(with Prof. John Shumway, Arizona State University) For my PhD thesis I have been involved in modeling of strongly correlated, lowdimensional systems like conjugated polymers and molecular magnets to study ground and excited state properties. As a part of this work, I have worked with numerical computation of excitation spectra for model Hamiltonians like Hubbard or Pariser-Parr-Pople models by Exact Diagonalization or Density Matrix Renormalization Group (DMRG) methods. I have gained experience with computational approaches to sparse matrix eigenvalue and linear algebra problems encountered in quantum chemistry and condensed matter physics. Programming ability with languages like FORTRAN 77/90 and C++, familiarity with UNIX / LINUX environment. (with Prof. S. Ramasesha, n Institute of Science) Research and Educational Interests My research interests include large scale electronic structure calculations for molecules, solids and nano systems, strongly correlated systems, low dimensional materials, modeling of X-Ray scattering from metallic objects. I am keen to teach physics at both graduate and undergraduate level and involve myself in science curriculum development for schools. Conferences / Workshops attended Annual NDE Conference, n Society for Non-destructive Testing, Pune, December 2005 American Physical Society, March meeting, Austin, Texas March 2003. 14th Annual Workshop on Recent Developments in Electronic Structure Methods, University of California, Berkeley, California, June 2002.
XI Workshop on Strongly Correlated Electron Systems, Abdus Salam ICTP, Trieste, Italy, July 1999. Workshop on Computational Techniques for Strongly Correlated Systems, Abdus Salam ICTP, Trieste, Italy, June 1999. National Symposium on Frontiers in Chemistry, IISc. Bangalore,, January 1999. S.E.R.C. Winter School on Quantum Chemistry, IIT Bombay and NCL Pune,, December 1998. Journal Publications List of Publications 1. C. Raghu, Y. Anusooya and S. Ramasesha, ``Density-Matrix Renormalization-Group study of low-lying excitations of Polyacene within a Pariser-Parr-Pople model'', Phys. Rev. B 66, 035116 (2002). 2. C. Raghu, Y. Anusooya and S. Ramasesha, ``Structural and electronic instabilities in polyacenes: Density-matrix renormalization-group study of a long-range interacting model'', Phys. Rev. B 65, 155204 (2002). 3. I. Rudra, C. Raghu, S. Ramasesha, ``Exchange interaction in binuclear complexes with rare-earth and copper ions: A many-body model study'', Phys. Rev. B 65, 224411 (2002). 4. C. Raghu, Indranil Rudra, S. Ramasesha and Diptiman Sen, ``Properties of low-lying states in some high nuclearity Mn, Fe and V clusters: Exact Heisenberg Model Studies'', Phys. Rev. B 64, 0644191 (2001) 5. C. Raghu, Indranil Rudra, S. Ramasesha and Diptiman Sen, `` Evaluation of Low Energy Effective Hamiltonian Techniques for Coupled Spin Triangles'', Phys. Rev. B 62, 9484, (2000). 6. C. Raghu, Indranil Rudra, S. Ramasesha and Diptiman Sen, ``Quantum Phenomena in Magnetic Nanoclusters'', Proc. n Acad. Sci. (Chem. Sci.), Vol. 113, No 5 and 6, 459, (2001). 7. C. Meneghini, R. Cimino, S. Pascarelli, S. Mobilio, C. Raghu and D. D. Sarma, ``Temperature Dependence of Non-Debye Disorder in Doped Manganites'', Phys. Rev. B 56, 3520 (1997).
Conference Proceedings Publications 1. V. Manoharan, Rajashekar Venkatachalam, Debasish Mishra, C. Raghu and Venumadhav Vedula, ``Performance Evaluation of Digital Radiography Systems for Gamma Radiography'', Conference Proceedings, Asia-Pacific Conference on NDT, New Zealand, (2006) (Accepted for Publication) 2. C. Raghu, Venumadhav Vedula and V. Manoharan, ``Evaluation of X-Ray spectrum Models for Industrial Radiography Applications'', QNDE Conference, Portland, (2006) (Accepted for Publication) 3. Venumadhav Vedula, V. Manoharan, C. Raghu, Pramod Pandey, `` Beam Hardening Corrections in Quantitative Computed Tomography'', QNDE Conference, Portland, (2006) (Accepted for Publication) Conference Presentations 1. C. Raghu (presenter), John Shumway and Kevin Schmidt, ``Spin-Orbit Interactions in Diffusion Monte Carlo'', American Physical Society, March meeting, Austin, Texas (2003). 2. Debasish Mishra (presenter), C. Raghu, Venumadhav Vedula and V. Manoharan, ``Optimization of Object to Detector Distance to Reduce Blurring due to Scattered Radiation and Geometrical Unsharpness'', National seminar on NDT (NDE 2005), Kolkata, (2005) 3. Debasish Mishra, C. Raghu (presenter), Rajashekar Venkatachalam, Venumadhav Vedula, V. Manoharan and Joe Portaz, `` Role of Metallic Filters and Screens in a Digital Radiography System'', National seminar on NDT (NDE 2005), Kolkata, (2005) Patent Applications 1. Clarence Gordon, C. Raghu and Richard Bossi, ``Radiographic Inspection Planning Tool for Composite Materials'' (2006) (To be filed with US Patent Office)
References 1. Prof. S. Ramasesha S.S.C.U, IISc Bangalore 560012 Tel: +91-80-2293 2925 Fax: +91-80-2360-1310 ramasesh@sscu.iisc.ernet.in 2. Prof. D. D. Sarma S.S.C.U, I.I.Sc Bangalore 560012 Tel: +91-80-2293 2945 Fax: +91-80-2360 1310 sarma@sscu.iisc.ernet.in mlsdds@iacs.res.in 3. Dr. Priya Mahadevan Reader, S. N. Bose NCBS JD Block Sector 3 Salt Lake Kolkata 700098 Tel: +91-33-2335 5706 ext 211 Fax: +91-33-2335 3477 priya@bose.res.in