Electronic and Magnetic Materials. Thin films and bulk Oxide electronics, Magnetotransport studies in manganites and SPINTRONICS
Students
Current PhD Students
✔ PH14D010 NARMADA BASVA
✔ PH14D022 ANJU SAROHA
✔ PH15D027 DHRUBA DAS
✔ PH16D044 SOUMEN PRADHAN
✔ PH17D046 SREYA SURESH
✔ PH17D204 RAVINDRA KUMAR
✔ PH18D202 SUBHAJIT CHATTERJEE
✔ PH19D039 JAYANTA JANA
✔ PH19D067 KAUSHALYA KUMARI
✔ PH19D068 RAHUL RAJ
✔ PH19D201 SHOUVIK CHOUDHURY
✔ PH20D058 TRIDIP KUNDU
✔ PH20D099 SANUJA KUMAR KHUNTIA
✔ PH20D100 SAIKAT DAS
Recent Publications
✔ Oxygen vacancy controlled tunable magnetic and electrical transport properties of (Li,Ni)-codped ZnO thin films. Senthil Kumar E, S. Venkatesh and M.S. Ramachandra Rao. Applied Physics Letters. 96. 232504. 2010.
✔ Magnetoimpedance and magnetodielectric properties of single phase 45PMN-20PFW-35PT ceramics. B. Ramachandran, N. Sudarshan, and M. S. Ramachandra Rao. Journal of Appl.Phys. 107. 09C503 . 2010.
✔ Synthesis and study of electrical and magnetic properties of vanadium oxide micro and nanosized rods grown using pulsed laser deposition technique. N. Rama and M.S. Ramachandra Rao. Solid State Communications . 150. 1041. 2010.
✔ Charge transfer and electronic transitions in polycrystalline BiFeO3. Ramachandran, A Dixit, R. Naik, G. Lawes, and M .S. Ramachandra Rao B. Phys. Rev. B . 82. 012102. 2010.
✔ Low temperature magnetocaloric effect in polycrystalline BiFeO3 ceramics. B. Ramachandran and M .S. Ramachandra Rao. Applied Physics Letters. 95. 142505. 2009.
✔ Magnetic and optical properties of Mn-doped BaSnO3. K. Balamurugan, N. Harish Kumar, B. Ramachandran, M.S. Ramachandra Rao, J. Arout Chelvane,P.N. Santhosh. Solid State Communications. 149. 884. 2009.
✔ Green light emitting oxygen deficient ZnO forks, brooms and spheres. Shubra Singh and M.S .Ramachandra Rao. Scripta Materialia. 61. 169. 2009.
✔ Microstructural Study of Assorted ZnO Nanostructures: Nanocombs, Nanocones and Microspheres. Shubra Singh, E. Senthil Kumar and M. S. Ramachandra Rao. Journal of Nanoscience and Nanotechnology. 9 . 2009.
v Optical and electrical resistivity studies of isovalent and aliovalent 3d transition metal ion doped ZnO. Shubra singh and M.S.Ramachandra Rao. Phys. Rev. B. 80. 045210. 2009.
✔ Epitaxial ZnxFe3−xO4 thin films: A spintronic material with tunable electrical and magnetic properties. Deepak Venkateshvarn, Matthias Althammer, Andrea Nielsen, Stephan Geprags,M.S. Ramachandra Rao, Sebastian T.B. Goennenwein, Matthias Opel, and Rudolf Gross. Phys. Rev. B. 79. 134405. 2009.
✔ Structural, magnetic, and electrical studies on polycrystalline transition-metal-doped BiFeO3 thin films. P Kharel, S Talebi , B Ramachandran , A Dixi, V M Naik, M B Sahana, C Sudakar, R Naik, M.S. Ramachandra Rao, and G Lawes. J. Phys.: Condens. Matter . 21. 036001. 2009.
✔ A new red colour emitting phosphor – ZnS : Mn co-doped with Ba for electroluminescent (EL) displays. Panchatcharam Thiyagarajan, M. Kottaisamy, K. Sethupathi and and M.S. Ramachandra Raob. Displays. 30. 202. 2009.
✔ UV excitable Y2-x-yGdySiO5:Cex phosphors for cool white light emission. P. Thiyagarajan, Brajesh Tiwari, M. Kottaisamy, N. Rama and M. S. Ramachandra Rao. Appl. Phys. A Material Science and Processing . 94. 607. 2009.
✔ Synthesis of novel ZnO hexagonal nanocones by direct thermal evaporation method. E. Senthil Kumar, Reddy S.R, M.S. Ramachandra Rao. J. Nanosci. Nanotechnol. 9. 2009.
✔ Anomalous Hall effect in magnetite: Universal scaling relation between Hall and longitudinal conductivity in low-conductivity ferromagnets. Deepak Venkateshvaran, Wolfgang Kaiser, Andrea Boger, Matthias Althammer, M .S. Ramachandra Rao, Sebastian T.B. Goennenwein, Matthias Opel, and Rudolf Gross. Phys. Rev. B. 78. 092405. 2008.
✔ Tuning the magnetization dynamics of silica-coated Fe3O4 core-shell nanoparticles by shell thickness control. K. Mohan Kant, K. Sethupathi and M.S. Ramachandra Rao. J. Appl.Phys . 103. 07D501. 2008.
✔ Correlation between electrical transport, optical, and magnetic properties of transition metal ion doped ZnO. Shubra Singh, N. Rama, K. Sethupathi and M.S. Ramachandra Rao. J. Appl. Phys. 103. 07D108. 2008.
✔ Microstructural opticaland electrical properties of Cr doped ZnO. Shubra singh, E. Senthil Kumar and M.S. Ramachandra Rao. Scripta Materialia. 58. 866. 2008.
✔ Formation of ZnO Nano Brushes in direct atmosphere using carbon catalyst and Zn metal source. Shubra Singh, Bhaskar Reddy, S.Kottaisamy and M.S. Ramachandra Rao. Nano. 3. 2008.
✔ Role of oxide barrier in integranular tunnel junctions: An enhanced magnetoresistnace in SiO2and ZnO-coated Fe3O4 nanopartilces compacts. K .Moahan kant, K.Sethupathi and M.S. Ramachandra Rao. J. Appl. Phys. 103. 07F318. 2008.
✔ Tuning the magentization dyanmics of silica-coated Fe3O4 core-shell nanoparticles by shell thickness control. K .Moahankant, K. Sethupathi and M.S. Ramachandra Rao. J.Appl. Phy. 103. 07D5012828574. 2008.
✔ Correlation between elctrical transport .optical and magnetic properties of transition metal ion doped ZnO. Shubra Singh, N .Rama, K.Sethupathi and M.S. Ramachandra Rao. J .Appl. Phys. 103. 07D108. 2008.
✔ Electrical resistivity,thermoelectric power and electron spin resonance on Pr1xSrxMnO3 (x=0.2,0.26 and 0.3 ). N. Rama ,V .Sankaranarayanan and M.S. Ramachandra Rao. J.Alloys and Compounds. 466. 12. 2008.
✔ Structural and physical properties of undoped and vanadium doped ZnO films deposited by pulsed laser deposition. Shubra Singh and M.S.Ramachandra Rao. J. Nanoscience and Nanotchnology . 8. 2008.
✔ White light emitting diode synthesis using near Ultraviolet excitation on ZnO- SiO2 nanocomposite. P. Thiyagarajan, M. Kottaisamy, N. Rama and M. S. Ramachandra Rao. Scripta Materialia. 59. 722. 2008.
✔ Topical Review ,Structural and physical properties of ZnO based materials in various forms: Bulk ,thin film and nano. Shubra Singh P. Thiyagarajan, K. Mohan Kant ,Tirupathiah, B. Tiwari, N. Rama, M.M.K. Samy and M .S .Ramachandra Rao. J.Phys.D:Applied Physics. 40. 6312. 2007.
✔ PLD Growth of CNTs using a Nanostructured Ni Buffer Layer : Dependence of H2 partial Pressure. Maneesh Chandran , K. Mohan Kant, N.Rama and M.S.Ramachandra Rao. MRS. 0951-E06-15. 2007.
✔ Pulsed laser deposited oxide green emitting thin film phosphors:optimization of growth conditions. P.Thiyagarajan , M.K. Kottaisamy and M .S. Ramachandra Rao. Mater.Res.Soc.Symp.Proc . 0988-QQ06-12. 2007.
✔ Effects of substrate on the electrical transport property of Ba2 FeNbO6 double perovskite thin films. N.Rama , J.B .Philipp , M. Opel , V. Sankaranarayanan , R. Gross and M . S .Ramachandra Rao. J.Phy. D: Appl.Phys. 40 . 1430. 2007.
✔ Nanocrystalline barium zinconate titanate synthesized at low temperature by an aques co-precipitation technique. S .Bahskar Reddy, K. Prasad Rao and M.S. Ramachandra Rao. Scripta Materialia . 57. 591. 2007.
✔ SPM Characterization of pulsed Laser Deposited Nanocrystalline CrN Hard Coatings. G .Mangamma, K. Mohan Kant, M.S. Ramachandra Rao, S. Kalavathy, M. Kamruddin, S. Dash and A.K. Tyagi. J .Nanosci. Nanotechnology. 7. 2176. 2007.
✔ Obesrvation of high permittivity in Ho substituted BaZr0.1Ti0.9O3 ceramics. S.Bhaskar Reddy, M.S. Ramachandra Rao and K Prasad Rao. Appl.Phy.Lett. 91. 022917. 2007.
✔ Structural and dielectric characterization of Sr substituted Ba (Zr,Ti)) 3 based functional materials. S .Bhaskar Reddy, M.S. Ramachandra Rao and K Prasad Rao. Applied Physics A: Materials Science & Processing. A89. 1011. 2007.
✔ Influnece of disorder on the low and high temperature magnetization and magnetoresistance in Pr0.6R0.1Sr0.3MnO3 (R =Tb,Y,Ho and Er ) manganite. N. Rama , V .Sankaranarayanan , M.Opel, R.Gross and M. S . Ramachandra Rao. Journal of Alloys and Compounds. 443 . 7. 2007.
✔ Structural and luminescence properties of pulsed laser deposited green emitting Zn2SiO4:Mn phosphor thin films. P.Thiyagarajan, M .Kottaisamy and M.S. Ramachandra Rao. Scripta Materials . 57(5). 433. 2007.
✔ Improved luminescent properties of Zn2SiO4:Mn green phosophor prepared from a gel combustion synthesized ZnO:Mn-SiO2. P. Thiyagarajan , M. Koattaisamy and M. S. Ramachandra Rao. J . Electrochem. Soc. 154 (4). H297-H303. 2007.
✔ Luminescent properties of near UV excitable Ba2ZnS3:Mn red emitting phosphor blend for white LED and display applications. P.Thiyagarajan, M.Kottaisamy and M. S. Ramachandra Rao. Journal of Physics D: Applied Physics . 39 . 2701. 2006.
✔ Influence of sulphur and charge compenstor on tth luminescent properties of SrS:Ce prepared from SrSO4:Ce(SO4)2. P Thiyagarajan ,M .Kottaisamy and M .S.Ramachandra Rao. Master .Res. Bull. 42(4). 753-761. 2006.
✔ Influence of d-d transition bands on electrical resistivity in Ni-doped polycrystalline ZnO. Shubra Singh, N. Rama and M.S. Ramachandra Rao. Applied Physics Letters. 88. 222111. 2006.
✔ Role of double exchange interaction on the magnetic and electrical properties of Pr0.8Sr0.2MnO3 ferromagnetic insulating manganite. N. Rama, V. Sankaranarayanan and M.S. Ramachandra Rao. J.Appl.Phys. 99. 08Q315 . 2006.
✔ Effect of Ar annealing on the magnetic and transport properties of Pr0.7Sr0.3MnO3. N. Rama, K. Mohan Kant, V. Sankaranarayanan and M.S. Ramachandra Rao. J. Magn. Magn. Mater. 302. e342-e346. 2006.
✔ Electrical transport and morphological study of PLD-grown nanostructured amorphous carbon thin films. K. Mohan Kant, N. Mahipal Reddy, N. Rama, K. Sethupathi and M.S. Ramachandra Rao. IOP science, Nanotechnology. 17. 5244. 2006.
✔ Ferroelectric and magnetic property study of Ho2CuTiO6 double perovskite. S. Bhaskar Reddy, K. Mohan Kant, M. Opel, K. Prasad Rao, R. Gross and M.S.Ramachandra Rao. J. Magn. Magn. Mater. 303(2). e332. 2006.
✔ Search for ferromagnetism in undoped and cobalt-doped HfO2. M. S. Ramachandra Rao, Darshan C. Kundaliya, S. J. Welz, S. B. Ogale, Abhijit S. Ogale, L. Fu, V. Zaitsev, B. Varughese, C. A. Cardoso, A. Curtin, S. Dhar, S. R.Shinde, S. E. Lofland, Steven Schwarz, N. D. Browning, and T. Venkatesan. Applied Physics Letters. 88. 142505 . 2006.
Teaching
✔ 2017 : (Jan - May) - NE6201 Project III / PH1020 Physics II / PH5360 Project / PH5900+ Project II / PH6011 Nanomaterials and Nanotechnology / PH7090 Foundations in Experiemntal Physics / PHPCL0 Prepar
✔ 2018 : (Jan - May) - EP3500 Summer Training / EP4500 Self Study Elective / PH6011 Nanomaterials and Nanotechnology / PH6999 Special Topics in Physics / PH7999 Special Topics in Physics; (Jul - Nov) - EP3500 Summer Training / PH4500 Industrial Training / PH5670 Physics Tech. of Thin Flims
✔ 2019 : (Jan - May) - PH6011 Nanomaterials and Nanotechnology/ PH6015 Advanced Materials and Nanotechnology Lab / PH7090 Foundations in Experiemntal Physics; (Jul - Nov) - PH5670 - Physics Tech. of Thin Flims
