Dr. Rudra Sekhar Manna

Assistant Professor & Head of the Department

Areas of Interest

• Experimental Condensed Matter Physics
• Experiments at extreme conditions: very low temperatures, high magnetic fields and high pressures
• Strongly correlated electron phenomena, e.g., spin-orbit coupled iridates, triangular and kagome quantum spin-liquid, Mott metal-insulator transition, superconductivity, and magnetism

Education

• Ph.D, Goethe University Frankfurt, Germany (2012)
• M.Sc, Physics, IIT Bombay (2006)
• B.Sc, Physics, RKM Vidyamandira, Belur Math, Calcutta University (2004)

Latest Publications

• Pressure-driven transitions in the double perovskite La₂⁢CoTiO₆: Antiferromagnetic insulator to nonmagnetic metal via antiferromagnetic metal in a double perovskite oxide; Sromona Nandi, Subhadip Pradhan, Ashis K. Nandy, and Rudra Sekhar Manna, Phys. Rev. B 110, 085101, 2024.
• Pressure-induced dimerization and collapse of antiferromagnetism in the Kitaev material 𝛼−Li₂⁢IrO₃; Bin Shen, Franziska Breitner, Danil Prishchenko, Rudra Sekhar Manna, Anton Jesche, Maximilian L. Seidler, Philipp Gegenwart, and Alexander A. Tsirlin, Phys. Rev. B 105, 054412, 2022.
• P. Pramanik, D. C. Joshi, M. Reehuis, A. Hoser, J. U. Hoffmann, R. S. Manna, T. Sarkar, and S. Thota, Neutron diffraction evidence for local spin canting, weak Jahn-Teller distortion, and magnetic compensation in TixMn1-xCo2O4 spinel, J. Phys.: Condens. Matter 32, 245801 (2020).
• S. V. Ovsyannikov, M. Bykov, E. Bykova, K. Glazyrin, R. S. Manna, A. A. Tsirlin, V. Cerantola, I. Kupenko, A. V. Kurnosov, I. Kantor, A. S. Pakhomova, I. Chuvashova, A. Chumakov, R. Rueffer, C. McCammon, and L. S. Dubrovinsky, Anomalous charge ordering in pressure-tuned iron oxide, Nature Communications 9, 4142 (2018).
• J. K. H. Fischer, P. Lunkenheimer, C. Leva, S. M. Winter, M. Lang, C. Mézière, P. Batail, A. Loidl, and R. S. Manna, Relaxation dynamics in the one-dimensional organic charge-transfer salt δ-(EDT-TTF-CONMe2)2Br, Phys. Rev. B 97, 235156 (2018).
• M. Majumder$, R. S. Manna$, G. Simutis, J. C. Orain, T. Dey, F. Freund, A. Jesche, R. Khasanov, P. K. Biswas, E. Bykova, N. Dubrovinskaia, L.S. Dubrovinsky, R. Yadav, L. Hozoi, S. Nishimoto, A. A. Tsirlin, and P. Gegenwart, Breakdown of magnetic order in the pressurized Kitaev iridate β-Li2IrO3, Phys. Rev. Lett. 120, 237202 (2018), $ = equal contribution.
• M. Fix, A. Jesche, S. G. Jantz, S. A. Braeuninger, H.-H. Klauss, R. S. Manna, I. M. Pietsch, H. A. Hoeppe, and P. C. Canfield, Ferromagnetism or slow paramagnetic relaxation in Fe-doped Li3N?, Phys. Rev. B 97, 064419 (2018).
• R. S. Manna*, S. Hartmann, E. Gati, J. A. Schlueter, M. de Souza, and M. Lang, Low-temperature lattice effects in the spin-liquid-candidate system k-(BEDT-TTF)2Cu2(CN)3, Crystals 8, 87 (2018), *corresponding author; appeared in the special issue entitled ‘Advances in Organic Conductors and Superconductors’.