Institute of Physics

Publications

2021

• Gd induced modifications in the magnetocaloric properties of Dysprosium Manganites, Abinash Prusty, Sudipta Mahana, Andrei Gloskovskii, D Topwal, U Manju, Journal of Alloys and Compounds: 883, 160862, 2021
• Study on CH₃NH₃PbI₃ Based Perovskite Solar Cell: An Approach to Antisolvent Treatment under Ambient Condition, Pronoy Nandi, Chandan Giri, Umesh Bansode, D Topwal, Recent Trends in Chemical and Material Sciences: 3, 24, 2021
• Probing the Role of Local Structure in Driving the Stability of HalidePerovskites CH₃NH₃PbX₃, Pronoy Nandi, Sudipta Mahana, Edmund Welter,Dinesh Topwal, The Journal of Physical Chemistry C: 125, 24655, 2021
• Observation of room-temperature ferroelectricity in spark-plasma sintered GdCrO₃, Suryakanta Mishra, Krishna Rudrapal, Aminur Rahaman, Pratap Pal, Archna Sagdeo, Ranjit Mishra, Dinesh Topwal, Ayan Roy Chaudhuri, Venimadhav Adyam, Debraj Choudhury Physical Review B: 104, L180101, 2021
• Prospects in Engineering Congested Molecular Diffusion at the Stabilizer Layer of Metal Nanocrystals for Ultrahigh Catalytic Activity, , L Sahoo, S Mondal, R Garg, U Manju, D Topwal, UK Gautam The Journal of Physical Chemistry C: 125, 9827, 2021
• Understanding the Origin of Broad-Band Emission in CH₃NH₃PbBr₃, Pronoy Nandi, Chandan Giri, and Dinesh Topwal J. Mater. Chem. C, 9, 2793, 2021
• 3D porous polymeric foam supported Pd Nanocrystals as a highly efficient and recyclable catalyst for organic transformations, Lipipuspa Sahoo, Sanjit Mondal, Nayana Beena, Andrei Gloskovskii, Manju Unnikrishnan, Dinesh Topwal, Ujjal K. Gautam ACS Appl. Mater. Interfaces, 13(8), 10120, 2021
• Reference plane for the electronic states in thin films on stepped surfaces, P. Moras, T. O. Mentes, F. Schiller, L. Ferrari, D. Topwal, A. Locatelli, P. M. Sheverdyaeva and C. Carbone Accepted for publication in Phys. Rev. B, 2021

2020

• Origin and tuning of room-temperature multiferroicity in Fe doped BaTiO₃, P. Pal, K. Rudrapal, S. Mahana, S. Yadav, K. Singh, D. Topwal, A. R. Chaudhuri, D. Choudhury. Phys. Rev. B, 101, 64409, 2020
• Site-substitution in GdMnO₃: effects on structural, electronic and magnetic properties, Sudipta Mahana, Bipul Rakshit, Pronoy Nandi, Raktima Basu, Sandip Dhara, U Manju, Subhendra D Mahanti, D Topwal Phys. Rev. B, 102, 245120, 2020
• Organic-Inorganic Hybrid Lead Halides as Absorber in Perovskite Solar Cells: A Debate on Ferroelectricity, Pronoy Nandi, Nam-Gyu Park, Dinesh Topwal, Hyunjung Shin J. Phys. D: Appl. Phys, 53, 493002, 2020
• Engineering room-temperature multiferroicity in Bi and Fe co-doped BaTiO₃, Pratap Pal, Tapas Paramanik, Krishna Rudrapal, Supriyo Majumder, Satish Yadav, Sudipta Mahana, Dinesh Topwal, Ram Janay Choudhary, Kiran Singh, Ayan Roy Chaudhuri, and Debraj Choudhury Applied Physics Letters, 117, 012901, 2020
• Probing the Electronic Structure of Hybrid Perovskites in the Orientationally Disordered Cubic Phase, Pronoy Nandi, S. K. Pandey, Chandan Giri, Vijay Singh, L. Petaccia, U. Manju, Subhendra D. Mahanti, D. Topwal J. Phys. Chem. Lett. 11, 5719, 2020

2019

• Room Temperature Growth of CH₃NH₃PbCl₃ Single Crystals by Solvent Evaporation Method, Pronoy Nandi, Chandan Giri, Diptikanta Swain, U. Manju and Dinesh Topwal CrystEngComm. 21, 656 (2019)
• Tetramer Orbital-Ordering induced Lattice-Chirality in Ferrimagnetic, Polar MnTi₂O₄, A Rahaman, M Chakraborty, T Paramanik, RK Maurya, S Mahana, R Bindu, D Topwal, P Mahadevan, D Choudhury Phys. Rev. B, 100, 15162, 2019

2018

• Room Temperature Growth of CH₃NH₃PbCl₃ Single Crystals by Solvent Evaporation Method, Pronoy Nandi, Chandan Giri, Diptikanta Swain, U. Manju and Dinesh Topwal CrystEngComm. (2018) (accepted for publication)
• Self-immobilized Pd nanowires as an excellent platform for a continuous flow reactor: efficiency, stability and regeneration, Lipipuspa Sahoo, Moumita Rana, Sanjit Mondal, Neeru Mittal, Pronoy Nandi, A. Gloskovskii, U. Manju, D. Topwal and Ujjal K. Gautam Nanoscale, 10 (2018) 21396
• Temperature Dependent Photo-induced reversible Phase Separation in Mixed Halide Perovskite, P. Nandi, Chandan Giri, D. Swain, U. Manju, SD. Mahanti, D. Topwal ACS Appl. Energy Mater., 1 (2018), 3807
• GdCrO₃: a potential candidate for low temperature magnetic refrigeration, S. Mahana, U. Manju, D. Topwal Journal of Physics D: Applied Physics 51 (2018) 305002
• Angle dependent localized surface plasmon resonance from near surface implanted silver nanoparticles in SiO₂ thin film, R.K. Bommali, D.P. Mahapatra, H. Gupta, Puspendu Guha, D. Topwal, G. Vijaya Prakash, S. Ghosh, P. Srivastava Journal of Applied Physics, 124 (2018) 063107
• Role of local structural distortion in driving ferroelectricity in GdCrO₃, S. Mahana, U. Manju, P. Nandi, E. Welter, K.R. Priolkar, D. Topwal Phys. Rev. B 97 (2018) 224107

2017

• Local inversion symmetry breaking and spin-phonon coupling in the perovskite GdCrO₃, S. Mahana, B. Rakshit, R. Basu, S. Dhara, B. Joseph, U. Manju, SD. Mahanti, D. Topwal, Phy. Rev. B 96 (2017) 104106
• Defect induced polarization and dielectic relaxation in Ga_2-xFe_xO₃, S. Mahana, C. Dhanasekhar, A. Venimadhav, D. Topwal, Appl. Phys. Lett. 111 (2017) 132902
• Band Structure of Topological Insulator BiSbTe_1.25Se_1.75, H. Lohani, P. Mishra, A. Banerjee, K. Majhi, R. Ganesan, U. Manju, D. Topwal, P. S. A. Kumar, B.R. Sekhar, Scientific Reports 7 4567. doi: 10.1038/s41598-017-04985-y
• Complex Spin Glass behavior in Ga_2-xFe_xO₃, Sudipta Mahana, Dinesh Topwal, Appl. Phys. Lett. 110 (2017) 102907
• Optical and low temperature magnetic properties study on sol-gel derived misfit calcium cobaltite, Avinna Mishra, Sudipta Mahana, Dinesh Topwal, U. Manju, Sarama Bhattacharjee, AIP Conference proceedings, 2017 1832 (1), 030019
• Thermoelectric properties of ternary half-Heuslar LuPdBi, A. Mukhopadhyay, S. Mahana, S. Chowki, D. Topwal, N. Mohapatra, AIP Conference proceedings, 2017 1832 (1), 110024
• Complex magnetic behavior in GdCrO3, Sudipta Mahana, U. Manju, D. Topwal, AIP Conference proceedings, 2017 1832 (1), 130046
• CH3NH3PbI3 based solar cell: Modified by antisolvent treatment, Pronoy Nandi, Chandan Giri, U. Bansode, D. Topwal, AIP Conference proceedings, 2017 1832 (1), 080065
• Synthesis and characterization of layered metal sulfates containing MII3(μ3-OH/F)2(M = Mg, Co) diamond chains, Subba R. Marri, Sudipta Mahana, Dinesh Topwal and J. N. Behera, Dalton Trans. 46 (2017) 1105
• Giant magnetocaloric effect in GdAlO3 and a comparative study with GdMnO3, Sudipta Mahana, U Manju and D Topwal, J. Phys.D: Appl. Phys. 50 2017 035002

2016

• CH₃NH₃PbI₃, A Potential Solar Cell Candidate: Structural and Spectroscopic Investigations, Pronoy Nandi, Chandan Giri, Boby Joseph, S. Rath, U. Manju and D. Topwal, J. Phys. Chem. A 120 (2016) 9732
• Structural and electronic phase evolution of Tin dioxide, Sudipta Mahana, Pitamber Sapkota, Saptarshi Ghosh, U. Manju, D. Topwal, arXiv: 1606.08137, 2016
• Ion irradiation induced phase transition of Co in Co/Au multilayers, Vantari Siva, Siddharth S. Sahu, D.P. Datta, P.C. Pradhan, M. Nayak, V. Solanki, D. Topwal, Kartik Senapati, Pratap K. Sahoo, Journal of Alloys and Compounds 680 (2016) 722
• Expansion of a Discrete [3 × 3] Mn9 Metallogrid to a μ-Carboxylato-Bridged Polymeric {Mn11}n Assembly, Avinash Lakma, Sayed Muktar Hossain, Rabindra Nath Pradhan, Dinesh Topwal, Andrea Cornia, and Akhilesh Kumar Singh, Eur. J. Inorg. Chem. 2016 (2016) 2993
• Asymmetric band gaps in a Rashba film system, C. Carbone, P. Moras, P. M. Sheverdyaeva, D. Pacilé, M. Papagno, L. Ferrari, D. Topwal, E. Vescovo, G. Bihlmayer, F. Freimuth, Y. Mokrousov, and S. Blügel, Phys. Rev. 93 (2016) 125409

2015

• Giant magnetocaloric effect in Gd₂NiMnO₆ and Gd₂CoMnO₆ ferromagnetic insulators, J Krishna Murthy, K Devi Chandrasekhar, Sudipta Mahana, D Topwal and A Venimadhav, J. Phys. D: Appl. Phys. 48 (2015) 355001
• Quantum confinement effects in low-dimensional systems, Dinesh Topwal, Pramana 84 (2015) 1023
• Resonance Raman spectroscopic study for radial vibrational modes in ultra-thin walled TiO2nanotubes, Rajini P. Antony, Arup Dasgupta, Sudipta Mahana, D. Topwal, Tom Mathews and Sandip Dhara, Journal of Raman Spectroscopy 46 (2015) 231

2013

• Interpretation of valence band photoemission spectra at organic-metal interfaces, L. Giovanelli, F. C. Bocquet, P. Amsalem, H.-L. Lee, M. Abel, S. Clair, M. Koudia, T. Faury, L. Petaccia, D. Topwal, E. Salomon, T. Angot, A. A. Cafolla, N. Koch, L. Porte, A. Goldoni, and J.-M. Themlin, Phys. Rev. B 87 (2013) 035413

2012

• Two Distinct Phases of Bilayer Graphene Films on Ru(0001), M. Papagno, D. Pacilé, D. Topwal, P. Moras, P. M. Sheverdyaeva, F. D. Natterer, A. Lehnert, S. Rusponi, Q. Dubout, F. Calleja, E. Frantzeskakis, S. Pons, J. Fujii, I. Vobornik, M. Grioni, C. Carbone and H. Brune, ACS Nano 6 (2012) 9299
• Quantum electron confinement in closely matched metals: Au films on Ag(111), D. Topwal, U. Manju, D. Pacilé, M. Papagno, D. Wortmann, G. Bihlmayer, S. Blügel, and C. Carbone, Phys. Rev. B 86 (2012) 085419
• Electronic states of moiré modulated Cu films, P Moras, P M Sheverdyaeva, C Carbone, D Topwal, L Ferrari, G Bihlmayer, S Ouazi, S Rusponi, A Lehnert and H Brune, J. Phys.: Condens. Matter 24 (2012) 335502
• Volume dependent quasiparticle spectral weight in NiS_2−xSe_x system, C Marini, A Perucchi, P Dore, D Topwal, D D Sarma, S Lupi and P Postorino, Journal of Physics: Conference Series 359 (2012) 012012
• Electronic structure study of ultrathin Ag(111) films modified by a Si(111) substrate and √3 × √3-Ag₂Bi surface, M Ogawa, P M Sheverdyaeva, P Moras, D Topwal, A Harasawa, K Kobayashi, C Carbone and I Matsuda, J. Phys. Condens. Matter. 24 (2012) 115501
• Temperature dependent photoemission spectroscopy on lightly-doped sodium tungsten bronze, S. Paul, A. Ghosh, A. Chakraborty, L. Petaccia, D. Topwal, D.D. Sarma, S. Oishi, S. Raj, Solid State Communications 152 (2012) 493
• Varying molecular interactions by coverage in supramolecular surface chemistry, Y. Wang Y, S. Fabris , T. W. White, F. Pagliuca, P. Moras, M. Papagno, D. Topwal, P. Sheverdyaeva, C. Carbone, M. Lingenfelder, T. Classen, K. Kern, G. Costantini, Chem. Commun. 48 (2012) 534

2011

• Combined Raman and infrared investigation of the insulator-to-metal transition in NiS_2−xSe_x compounds, C. Marini, A. Perucchi, D. Chermisi, P. Dore, M. Valentini, D. Topwal, D. D. Sarma, S. Lupi, and P. Postorino, Phys. Rev. B. 84 (2011) 235134
• Final-state diffraction effects in angle-resolved photoemission at an organic-metal interface, F. C. Bocquet, L. Giovanelli, P. Amsalem, L. Petaccia, D. Topwal, S. Gorovikov, M. Abel, N. Koch, L. Porte, A. Goldoni, and J.-M. Themlin, Phys. Rev. B. 84 (2011) 241407
• Enhanced spin relaxation in an ultrathin metal film by the Rashba-type surface, N. Miyata, H. Narita, M. Ogawa, A. Harasawa, R. Hobara, T. Hirahara, P. Moras, D. Topwal, C. Carbone, S. Hasegawa and I. Matsuda, Phys. Rev. B. 83 (2011) 195305

2010

• Probing the electronic transmission across a buried metal/metal interface, P. Moras, D. Wortmann, G. Bihlmayer, L. Ferrari, G. Alejandro, P. H. Zhou, D. Topwal, P. M. Sheverdyaeva, S. Blügel, and C. Carbone, Phys. Rev. B. 82 (2010) 155427
• Electronic structure of the two-dimensionally ordered Mn/Cu(110) magnetic surface alloy, U. Manju, D. Topwal, G. Rossi, and I. Vobornik, Phys. Rev. B. 82 (2010) 035442
• Evidence of graphene-like electronic signature in silicene nanoribbons, P. D. Padova, C. Quaresima, C. Ottaviani, P. M. Sheverdyaeva, P. Moras, C. Carbone, D. Topwal, B. Olivieri, A. Kara, H. Oughaddou, B. Aufray and G. L. Lay, Appl. Phys. Lett. 96 (2010) 261905
• Direct Spectroscopic Evidence of Spin-Dependent Hybridization between Rashba-Split Surface States and Quantum-Well States, K. He, Y. Takeichi, M. Ogawa, T. Okuda, P. Moras, D. Topwal, A. Harasawa, T. Hirahara, C. Carbone, A. Kakizaki, and I. Matsuda, Phys. Rev. Lett. 104 (2010) 156805
• Stabilizing Monomeric Iron Species in a Porous Silica/Mo(112) Film, Jan-Frederik Jerratsch, Niklas Nilius, Dinesh Topwal, Umberto Martinez, Livia Giordano, Gianfranco Pacchioni and Hans-Joachim Freund, ACS Nano 4 (2010) 863
• Modification of electronic structure in thin Ag quantum films induced by surface umklapp scattering of Bi/Ag surface alloy, M. Ogawa, P. Moras, D. Topwal, A. Harasawa, C. Carbone, I. Matsuda, 18th International of Vacuum Congress, 2010
• Electronic structure of Mn/Cu (110) a two-dimensional ordered magnetic surface alloy, U Manju, D Topwal, G Rossi, I Vobornik, 18th International of Vacuum Congress, 2010

2009

• Influence of the substrate bands on the sp-levels topology of Ag films on Ge(111), P. Moras, D. Topwal, P. M. Sheverdyaeva, L. Ferrari, J. Fujii, G. Bihlmayer, S. Blügel, and C. Carbone, Phys. Rev. B. 80 (2009) 205418
• Pressure and alloying effects on the metal to insulator transition in NiS2−xSex studied by infrared spectroscopy, A. Perucchi, C. Marini, M. Valentini, P. Postorino, R. Sopracase, P. Dore, P. Hansmann, O. Jepsen, G. Sangiovanni, A. Toschi, K. Held, D. Topwal, D. D. Sarma, and S. Lupi, Phys. Rev. B. 80 (2009) 073101
• Spin-polarized electron tunneling in polycrystalline Sr₂FeMoO₆ thin films, P K Muduli, R C Budhani, D Topwal and D D Sarma, Journal of Physics: Conference Series 150 (2009) 042132

2008

• Spatially-Resolved X-Ray Microstructural Studies of Bulk Phase Separation in Manganites, J. D. Budai, D. D. Sarma, W. Liu, J. Z. Tischler, B. C. Larson, G. Shenoy, D. Topwal, S. W. Cheong, APS March Meeting, March 10-14, 2008

2007 - 2000

• Enhanced Ionic Conductivity in Ce_0.8Sm_0.2O_1.9: Unique Effect of Calcium Co-doping, S. Banerjee, P. S. Devi, D. Topwal, S. Mandal, K. Menon, Adv. funct. mater 17 (2007) 2847
• Mapping Structural Phase Separation in Eu_0.5Y_0.5MnO₃ using 3D X-ray Microdiffraction, J. D. Budai, J. Z. Tischler, W. Liu, D. D. Sarma, D. Topwal, G. Shenoy, W. Yang, B. C. Larson, S. W. Cheong, A. A. Mukhin, APS March Meeting, March 5-9, 2007
• Structural and magnetic properties of Sr₂Fe_1+xMo_1−xO₆ (−1⩽x⩽0.25), Dinesh Topwal, D. D. Sarma, H. Kato, Y. Tokura, and M. Avignon, Phys. Rev. B 73 (2006) 094419
• A microspectroscopic study of the electronic homogeneity of ordered and disordered Sr₂FeMoO₆, Dinesh Topwal, U. Manju, Sugata Ray, S. Raj, D. D. Sarma, S. R. Krishnakumar, M. Bertolo, S. La Rosa, G. Cautero, Journal of Chemical Sciences 118 (2006) 8792
• Electronic structure of Ca₃CoXO₆ (X=Co, Rh, Ir) studied by x-ray photoemission spectroscopy, K. Takubo, T. Mizokawa, S. Hirata, J.-Y. Son, A. Fujimori, D. Topwal, D. D. Sarma, S. Rayaprol, and E.-V. Sampathkumaran, Phys. Rev. B 71 (2005) 073406
• Direct Observation of Large Electronic Domains with Memory Effect in Doped Manganites, D. D. Sarma, Dinesh Topwal, U. Manju, S. R. Krishnakumar, M. Bertolo, S. La Rosa, G. Cautero, T. Y. Koo, P. A. Sharma, S.-W. Cheong, and A. Fujimori, Phys. Rev. Lett. 93 (2004) 097202
• Structural and doping effects in the half-metallic double perovskite A₂CrWO₆ (A=Sr, Ba, and Ca), J. B. Philipp, P. Majewski, L. Alff, A. Erb, R. Gross, T. Graf, M. S. Brandt, J. Simon, T. Walther, W. Mader, D. Topwal, and D. D. Sarma, Phys. Rev. B. 68 (2003) 144431
• Electron Spectroscopic Data of La_1−xSr_xMnO₃ and La_1−xSr_xCoO₃, D. D. Sarma, Dinesh Topwal, and A. Chainani, Surface Science Spectra 6 (2000) 274