Research Group Publications

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 Amitabh Joshi Anuranjan Anand Balasubramanian Sundaram C. N. R. Rao 
C. P. Rajendran Chandrabhas Narayana Diwakar S. Venkatesan Eswaramoorthy M.G.U. Kulkarni 
Ganesh Subramanian Govindaraju T H Ila Hemalatha Balaram James P. Clement Chelliah 
Jayanta Haldar K. B. Sinha K.S. Narayan Kanishka Biswas Kaustuv Sanyal 
Kavita Jain Krishnan V.Kundu Tapas K.M. R. S. Rao Maneesha Inamdar 
Meheboob Alam Meher K. Prakash Namita Surolia Narasimha Roddam Rajesh Ganapathy 
Rama Govindarajan Ranjan Datta Ranjani Viswanatha Ravi Manjithaya S. N. Bhat 
Santosh Ansumali Santosh Ansumali Sarit S. Agasti Sebastian C Peter Sheeba Vasu 
Shivaprasad S. M.Shobhana Narasimhan Sreenivas K. R.Sridhar Rajaram Srikanth Sastry 
Subi Jacob George Subir K. Das Sundaresan A.Swapan Pati Tapas Kumar Maji 
Udaykumar Ranga Umesh V. Waghmare Valdiya K. S.Vidhyadhiraja N. S.Vidya T. N. C. 

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  1. K. Dileep, R. Sahu, Sumanta Sarkar, Sebastian C. Peter, and Ranjan Datta, Layer specific optical band gap measurement at nanoscale in MoS2 and ReS2 van der Waals compounds by high resolution electron energy loss spectroscopy, Journal of Applied Physics 119, 114309 (2016).

  2. B Loukya, DS Negi, R Sahu, N Pachauri, A Gupta, Ranjan Datta, Structural characterization of epitaxial LiFe5O8 thin films grown by chemical vapor deposition, Journal of Alloys and Compounds 668, 187 - 193 (2016).

  3. M Rana, PK Patil, M Chhetri, K Dileep, Ranjan Datta, UK Gautam, Pd–Pt alloys nanowires as support-less electrocatalyst with high synergistic enhancement in efficiency for methanol oxidation in acidic medium, Journal of Colloid and Interface Science 463, 099 - 106 (2016).

  4. D. S. Negi, B. Loukya, and Ranjan Datta, Native defect induced charge and ferromagnetic spin ordering and coexisting electronic phases in CoO epitaxial thin film, Appl. Phys. Lett. 107, 232404 (2015).

  5. R. Sahu, H. Gholap, G. Mounika, K. Dileep, B. Vishal, S. Ghara, and Ranjan Datta, Stable p-type conductivity in B and N co-doped ZnO epitaxial thin film, Phys. Stat. Sol. (b) (2015). ,

    DOI: 10.1002/pssb.201552625



  6. S. Perumal, S. Roychowdhury, D. S. Negi, Ranjan Datta, K. Biswas, High Thermoelectric Performance and Enhanced Mechanical Stability of p-type Ge1-xSbxTe, Chemistry of Materials 27, 7171 - 7178 (2015).

  7. M Chhetri, M Rana, B Loukya, PK Patil, Ranjan Datta, UK Gautam, Mechanochemical Synthesis of Free Standing Platinum Nanosheets and Their Electrocatalytic Properties, Advanced Materials 27, 4430 - 4437 (2015).

  8. N. Pachauri, B. Khodadadi, M. Althammer, A. Singh, B. Loukya, Ranjan Datta, M. Iliev,T. Mewes, and A. Gupta, Study of structural and ferromagnetic resonance properties of spinel lithium ferrite (LiFe5O8) single crystals, Journal of Applied Physics 117, 233907 (2015).

  9. B. Loukya, D. S. Negi, K. Dileep, N. Pachauri, A. Gupta, and Ranjan Datta, Effect of Bloch wave electron propagation and momentum resolved signal detection on the quantitative and site-specific electron magnetic chiral dichroism of magnetic spinel oxide thin films, Phys. Rev. B 91, 134412 (2015).

  10. D. S. Negi, B. Loukya, K. Ramasamy, A. Gupta and Ranjan Datta, Spatially Resolved Quantitative Magnetic Order Measurement in Spinel CuCr2S4 Nanocrystals, Appl. Phys. Lett 106, 182402 (2015).

  11. A.K. Kalyani, D. Khatua, B. Loukya, Ranjan Datta, A.N.Fitch, A. Senyshyn, and R. Ranjan, Metastable monoclinic and orthorhombic phases and electric field induced irreversible phase transformation at room temperature in the lead-free classical ferroelectric BaTiO3, Phys. Rev. B 91, 104104 (2015).

  12. M. Rana, M. Chhetri, B. Loukya, P.K. Patil, Ranjan Datta, and U.K. Gautam, High-Yield Synthesis of Sub-10 nm Pt Nanotetrahedra with Bare <111> Facets for Efficient Electrocatalytic Applications, ACS Applied Materials and Interfaces 7, 4998 - 5005 (2015).

  13. R. Sahu, K. Dileep, D. S. Negi, K. K. Nagaraja, and Ranjan Datta, Ambipolar behavior of Te and its effect on the optical emission of ZnO:Te epitaxial thin film, Phys. Stat. Sol. (b) 252, 1743 - 1748 (2015).

  14. R. Sahu, K. Dileep, D. S. Negi, K. K. Nagaraja, S. Shetty, and Ranjan Datta, Structural and optical property characterization of epitaxial ZnO:Te thin films grown by pulsed laser deposition, Journal of Crystal Growth 410, 69 - 76 (2015).

  15. L. Aggarwal, J. S. Sekhon, S. N. Guin, A. Arora, D. S. Negi, Ranjan Datta, K. Biswas and G. Sheet, Direct evidence of strong local ferroelectric ordering in a thermoelectric semiconductor, Appl. Phys. Lett 105, 113903 (2014).

  16. K. Dileep, B. Loukya, P. Silwal, A. Gupta, and Ranjan Datta, Probing optical band gaps at nanoscale from tetrahedral cation vacancy defects and variation of cation ordering in NiCo2O4 epitaxial thin films, Journal of Physics D: Applied Physics 47, 405001 (2014).

  17. K. Dileep, B. Loukya, N. Pachauri, A. Gupta and Ranjan Datta, Probing optical band gaps at nanoscale in NiFe2O4 and CoFe2O4 epitaxial films by high resolution electron energy loss spectroscopy, Journal of Applied Physics 116, 103505 (2014).

  18. G. Singh, G. Bajargan, Ranjan Datta, and U. Ramamurty, Deformation and strength of Ti-6Al-4V alloyed with B at cryogenic temperatures, Materials Science and Engineering A 611, 45 - 57 (2014).

  19. K. Dileep, R. Sahu, K. K. Nagaraja and Ranjan Datta, Crystallographic phase separation and band gap of ZnO1-xSx (x = 0.1-0.3) alloy thin films grown by pulsed laser deposition, Journal of Crystal Growth 402, 124 - 129 (2014).

  20. S. R. Lingampalli , K. Dileep, Ranjan Datta, and Ujjal K. Gautam, Tuning the Oxygen Release Temperature of Metal Peroxides over a Wide Range by Formation of Solid Solutions, Chemistry of Materials 26, 2720 - 2725 (2014).

  21. D.S. Negi, A. Roy, B. Loukya, K. Dileep, S. Shetty, N. Kumar, P.S. Anil Kumar, Ranjan Datta, Epitaxial Co metal thin film grown by pulsed laser deposition using oxide target, Journal of Crystal Growth 394, 112 - 115 (2014).

  22. R. Sahu, K. Dileep, B. Loukya, and Ranjan Datta, Native defects affecting the Li atom distribution tune the optical emission of ZnO:Li epitaxial thin film, Appl. Phys. Lett 104, 051908 (2014).

  23. G. Singh, D.V.V. Satyanarayana, R. Pederson, Ranjan Datta, U. Ramamurty, Enhancement in creep resistance of Ti-6Al-4V alloy due to Boron addition, Materials Science and Engineering A 597, 194 - 203 (2014).

  24. S. N. Guin, D. S. Negi, Ranjan Datta, K. Biswas, Nanostructuring, Carrier Engineering and Bond Anharmonicity Synergistically Boost the Thermoelectric performance in p-type AgSbSe2-ZnSe, Journal of Materials Chemistry A 2, 4324 - 4331 (2014).

  25. L. Shen, M. Althammer, N. Pachauri, B. Loukya, Ranjan Datta, M. Iliev, N. Bao, A. Gupta, Epitaxial Growth of Spinel Cobalt Ferrite Films on MgAl2O4 Substrates by Direct Liquid Injection Chemical Vapor Deposition, Journal of Crystal Growth 390, 61 - 66 (2014).

  26. K. Dileep and Ranjan Datta, Phase separation and electronic structure of ZnS0.3O0.7 alloy thin film with and without (Ag, Li) co-doping, Journal of Alloys and Compounds 586, 499 - 506 (2014).

  27. D. S. Negi, B. Loukya, K. Dileep, R.Sahu, S. Shetty, N. Kumar, J. Ghatak, N. Pachauri, A. Gupta, and Ranjan Datta, Structural and magnetic characterization of mixed valence Co (II, III)xZn1-xO epitaxial thin films, Journal of Magnetism and Magnetic Materials 354, 39 - 43 (2014).

  28. D. S. Negi, B. Loukya, K. Dileep, R. Sahu, K. K. Nagaraja, N. Kumar, and Ranjan Datta, Robust room temperature ferromagnetism in epitaxial CoO thin film, Appl. Phys. Lett 103, 242407 (2013).

  29. B. N. Rao, Ranjan Datta, S. Chandrashekar, V. Sathe, A. Senyshyn,and R. Ranjan, Local structural disorder and its influence on the average global structure and polar properties in Na 0.5Bi 0.5TiO3, Phys. Rev. B 88, 224103 (2013).

  30. U. Maitra, U. Gupta, M. De, Ranjan Datta, A. Govindaraj, C. N. R. Rao, Highly effective visible-light induced H2 generation by single-layer 1T-MoS2 and a nanocomposite of few-layer 2H-MoS2 with heavily nitrogenated graphene, Angew. Chem. Int. Ed 52, 13057 - 13061 (2013).

  31. A. Saha, K. V. Chellappan, K. S. Narayan, J. Ghatak, Ranjan Datta,and R. Viswanatha, Near-Unity Quantum Yield in Semiconducting Nanostructures:Structural Understanding Leading to Energy Efficient Applications, J. Phys. Chem. Lett. 4, 3544 - 3549 (2013).

  32. D. S. Negi, B. Loukya, K. Dileep, M. Kesaria, N. Kumar, Ranjan Datta, Characterization of structure and magnetism in Zn1-x(Cox/Mnx)O epitaxial thin films as a function of composition, Superlattices and Microsctructures 63, 289 - 297 (2013).

  33. G. Singh, R. Gaddam, V. Petley, Ranjan Datta, R. Pederson, U. Ramamurty, Strain-controlled fatigue in B-modified Ti-6Al-4V alloys, Scripta Materialia 69, 698 - 701 (2013). ,



  34. M. N. Iliev, P. Silwal, B. Loukya, Ranjan Datta, D. H. Kim, N. D. Todorov, N. Pachauri, and A. Gupta, Raman studies of cation distribution and thermal stability of epitaxial spinel NiCo2O4 films, Journal of Applied Physics 114, 033514 (2013).

  35. B. Loukya, D. S. Negi, K. Dileep, N. Kumar, J. Ghatak, Ranjan Datta, Giant coercivity in ferromagnetic Co doped ZnO single crystal thin film, Journal of Magnetism and Magnetic Materials 345, 159 - 164 (2013).

  36. S. N. Guin, A. Chatterjee, D. S. Negi, Ranjan Datta and K. Biswas, High thermoelectric performance in tellurium free p-type AgSbSe2, Energy and Environmental Science 6, 2603 - 2608 (2013).

  37. G. Singh, G. Bajargan, Ranjan Datta, U. Ramamurty, Effect of hydrogen charging on tensile properties of B-modified Ti–6Al–4V alloy, Materials Science and Engineering A 576, 326 - 336 (2013).

  38. N. Li, S. Schafer, Ranjan Datta, T. Mewes, T. M. Klein and A. Gupta, Microstructural and ferromagnetic resonance properties of epitaxial nickel ferrite films grown by chemical vapor deposition, Appl. Phys. Lett 101, 132409 (2012).

  39. K. Jayaramulu, K. K. R. Datta, M. V. Suresh, G. Kumari, Ranjan Datta, C. Narayana, M. Eswaramoorthy and T. K. Maji, Honeycomb Porous Framework of Zn(II): Effective Host for Pd Nanoparticles for Efficient Three component (A3) Coupling and Selective Gas Storage, ChemPlusChem 77, 743 - 748 (2012).

  40. B. Loukya, X. Zhang, A. Gupta, and Ranjan Datta,   Electron magnetic chiral dichroism in CrO2 thin films using monochromatic probe illumination in a transmission electron microscope, Journal of Magnetism and Magnetic Materials 324, 3754 - 3761 (2012).

  41. Ranjan Datta, B. Loukya, N. Li and A. Gupta, Structural features of epitaxial NiFe2O4 thin films grown on different substrates by direct liquid injection chemical vapor deposition, Journal of Crystal Growth 345, 44 - 50 (2012).

  42. U. Sanyal, Ranjan Datta and B. Jagirdar, Colloidal calcium nanoparticles: digestive ripening in presence of a capping agent and coalescence of particles under an electron beam  , RSC Advances 2, 259 - 263 (2012).

  43. F.Y.Meng, H. McFelea, Ranjan Datta, U. Chowdhury, C. Werkhoven, C. Arena and S. Mahajan, Origin of predominantly a type dislocations in InGaN layers and wells grown on (0001) GaN, Journal of Applied Physics 110, 073503 (2011).

  44. H. S. S. Ramakrishna Matte, Blake Plowman, Ranjan Datta and C. N. R. Rao,   Graphene analogues of layered metal selenides, Dalton Transactions 40, 10322 - 10325 (2011).

  45. B. Loukya, P. Sowjanya, K. Dileep, R. Shipra, S. Kanuri, L. S. Panchakarla and Ranjan Datta, Controlling structural quality of ZnO thin film on c-plane sapphire during pulsed laser deposition, Journal of Crystal Growth 329, 20 - 26 (2011).

  46. K. K. R. Datta, D. Jagadeesan, C. Kulkarni, A. Kamath, Ranjan Datta and M. Eswaramoorthy, Observation of Pore-switching Behaviour in Porous Layered Carbon through Mesoscale Order-Disorder Transformation, Angew. Chem. Int. Ed 50, 3929 - 3933 (2011).

  47. K. Dileep, L. S. Panchakarla, K. Balasubramanian, U. V. Waghmare, and Ranjan Datta, Electron energy loss spectroscopy of ZnO nanocrystals with different oxygen vacancy concentrations, Journal of Applied Physics 109, 063523 (2011).

  48. K. Venu, S. Kanuri, K. Raidongia, K.P.S.S. Hembram, U. V. Waghmare and Ranjan Datta, Band gap and chemically ordered domain structure of a graphene analogue BxCyNz  , Solid State Commun 150, 2262 - 2265 (2010).

  49. B. Radha, M. Arif, Ranjan Datta, T. Kundu, G.U.Kulkarni, Movable Au microplates as fluorescence enhancing substrates for live cells, Nano Research 3, 738 - 747 (2010).

  50. Ranjan Datta, S. Kanuri, S. V. Karthik, D. Mazumdar, J. X. Ma and A. Gupta, ­Formation of anti-phase domains in NiFe2O4 thin films deposited on different substrates, Appl. Phys. Lett 97,7, 071907 (2010).

  51. Indrani Sen, K. Gopinath, Ranjan Datta, Ramamurty Upadrasta, Fatigue in Ti-6Al-4V-B alloys, Acta Materialia 58, 6799 - 6809 (2010).

  52. H. S. S. Ramakrishna Matte, A. Gomathi, Arun K. Manna, Dattatray J. Late, Ranjan Datta, Swapan K. Pati and C. N. R. Rao, Graphene analogues of MoS2 and WS2, Angew. Chem. Int. Ed 49, 4059 - 4062 (2010).

  53. Angshuman Nag, Kalyan Raidongia, Kailash P. S. S. Hembram, Ranjan Datta, Umesh V. Waghmare, and C. N. R. Rao, Graphene Analogues of BN: Novel Synthesis and Properties, ACS Nano 3, 1539 - 1544 (2010).

  54. Kalyan Raidongia, Angshuman Nag, K. P. S. S. Hembram, Umesh V. Waghmare, Ranjan Datta, and C. N. R. Rao, BCN: A Graphene Analogue with Remarkable Adsorptive Properties, Chemistry - A European Journal 16, 149 - 157 (2010).

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