2010 - 2009 - 2008 - 2007 - 2006

2010

• Debraj Choudhury, Abhijit  Hazarika, Adyam Venimadhav, Chandrasekhar Kakarla, Kris T. Delaney, P. Sujatha Devi, P. Mondal, R.Nirmala, J. Gopalakrishnan, Nicola A. Spaldin, Umesh V. Waghmare, and D. D. Sarma, Electric and magnetic polarizabilities of hexagonal Ln2CuTiO6  (Ln = Y, Dy, Ho, Er and Yb), Phys. Rev. B 82, 134203 (2010).

• Pralay K. Santra, Sumanta Mukherjee and D. D. Sarma, Growth Kinetics of ZnO Nanocrystals in Presence of a Base: Effect of the Size of the Alkali Cation, J. Phys. Chem. C 114, 22113 (2010).

• Angshuman Nag, Roby Cherian, Priya Mahadevan, Achanta Venu Gopal, Abhijit Hazarika, Akshata Mohan, A. S. Vengurlekar, D. D. Sarma, Size-Dependent Tuning of Mn2+ d-Emission in Mn2+-Doped CdS Nanocrystals: Bulk vs. Surface, J. Phys. Chem. C 114, 18323 (2010).

• Debraj Choudhury, Barun Das, D.D. Sarma, and C.N.R. Rao, XPS evidence for molecular charge-transfer doping of graphene, Chem. Phys. Lett. 497, 66 (2010).

• Niladri S. Karan, D. D. Sarma, R. M. Kadam, and Narayan Pradhan, Doping Transition Metal (Mn or Cu) Ions in Semiconductor Nanocrystals, J. Phys. Chem. Lett. 1, 2863 (2010).

• Ashis Kumar Nandy, Priya Mahadevan, Prasenjit Sen and D. D. Sarma, KO2: Realization of orbital ordering in a p-orbital system, Phys. Rev. Lett. 105, 056403 (2010).

• Priya Mahadevan, Abhinav Kumar, Debraj Choudhury, and D. D. Sarma, Charge Ordering Induced Ferromagnetic Insulator: K2Cr8O16, Phys. Rev. Lett. 104, 256401 (2010).

• D. D. Sarma, Angshuman Nag, Pralay K. Santra, Akshay Kumar, Sameer Sapra, and Priya Mahadevan, Origin of the Enhanced Photoluminescence from Semiconductor CdSeS Nanocrystals, J. Phys. Chem. Lett., 1, 2149 (2010).

• Bhupendra B. Srivastava, Santanu Jana, D. D. Sarma and Narayan Pradhan, Surface Ligand Population Controlled Oriented Attachment: A Case of CdS Nanowires, J. Phys. Chem. Lett., 1, 1932 (2010).

• K. V. Shanavas, Debraj Choudhury, I. Dasgupta, Surinder M. Sharma, and D. D. Sarma, Origin of ferroelectric polarization in spiral magnetic structure of MnWO4, Phys. Rev. B, 81, 212406 (2010).

• Bhupendra B. Srivastava, Santanu Jana, Niladri S. Karan, Sayantan Paria, Nikhil R. Jana, D. D. Sarma, and Narayan Pradhan, Highly Luminescent Mn-Doped ZnS Nanocrystals: Gram-Scale Synthesis, J. Phys. Chem. Lett., 1, 1454 (2010).

• Debraj Choudhury, A. Venimadhav, C. Kakarla, Kris T. Delaney, P. Sujatha Devi, P. Mondal, R. Nirmala, J. Gopalakrishnan, Nicola A. Spaldin, Umesh V. Waghmare, and D. D. Sarma, Unusual dielectric response in B-site disordered hexagonal transition metal oxides, Appl. Phys. Lett., 96, 162903 (2010).

• S. Jana, B. B. Srivastava, S. Acharya, P. K. Santra, N. R. Jana, D. D. Sarma and N. Pradhan, Prevention of Photooxidation in Blue-Green Emitting Cu doped ZnSe Nanocrystals, Chem. Comm., 46, 2853 (2010).

• N. Pradhan, S. Acharya, K. Ariga, Niladri S. Karan, D. D. Sarma, Y. Wada, S. Efrima and Y. Golan, Chemically Programmed Ultrahigh Density Two Dimensional Semiconductor Superlattice Array,  J. Am. Chem. Soc.,132,1212  (2010).

• S. Acharya, D. D. Sarma, N. Pradhan, and N. Jana, An Alternate Route to High Quality ZnSe and Mn Doped ZnSe Nanocrystals, J. Phys. Chem. Lett. 1, (2010).

• R. Viswanatha, H. Amenitsch, S. Santra, S. Sapra, S. Datar, Y. Zhou, S. Nayak, S. Kumar, D. D. Sarma, Growth Mechanism of Cadmium Sulfide Nanocrystals, J. Phys. Chem. Lett. 1, 304 (2010).

2010 - 2009 - 2008 - 2007 - 2006

2009

• S. Raj, T. Sato, S. Souma, T. Takahashi and D. D. Sarma, Metal-insulator transition of NaxWO3 studied by angle-resolved photoemission spectroscopy, Mod. Phys. Lett. B 23, 2819 (2009). 

• Somobratra Acharya, D. D. Sarma, Yuval Golan, Sucheta Sengupta, Katsuhiko Ariga, Shape Dependent Confinement in Ultrasmall Zero, One, and Two Dimensional PbS Nanos- tructures, J. Am. Chem. Soc. 131, 11282 (2009).

• 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, Pressure and alloying effects on the metal to insulator transition in NiS2−xSex studied by infrared spectroscopy,Phys. Rev. B 80, 073101 (2009).

• C. Meneghini, Sugata Ray, F. Liscio, F. Bardelli, S. Mobilio and D. D. Sarma, Nature of “disorder” in the ordered double perovskite Sr2FeMoO6,Phys. Rev. Lett. 103, 046403 (2009).

• Ranjani Viswanatha, Pralay K. Santra and D. D. Sarma, Self Assembly and Electronic Structure of ZnO Nanocrystals,J. Cluster Sci. 20, 389 (2009).

• K. Muduli, R. C. Budhani, D. Topwal, D. D. Sarma, Spin-polarized electron tunneling in polycrystalline Sr2FeMoO6 thin films,J. Phys.: Conf. Ser. 150, 042132 (2009)

• Ranjani Viswanatha and D. D. Sarma, Effect of Structural Modification on the Quantum- Size Effect in II-VI Semiconducting Nanocrystals, Chemistry - An Asian J. 4, 904 (2009).

• F. Bardelli, C. Meneghini, S. Mobilio, Sugata Ray and D. D. Sarma, Local structure of Sr2FeMoxW1−xO6 double perovskites across the composition driven metal to insulator transition,J. Phys.: Cond. Matter. 21, 195502 (2009).

• Hena Das, Umesh V. Waghmare, T. Saha-Dasgupta, D. D. Sarma, Theoretical evidence and chemical origin of the magnetism-dependent electrostructural coupling in La2NiMnO6, Phys. Rev. B 79, 144403 (2009).

• P. Gambardella, S. Stepanow, A. Dmitriev, J. Honolka, F. de Groot, M. Lingenfelder, S. Sen Gupta, D. D. Sarma, P. Bencok, S. Stanescu, S. Clair, S. Pons, N. Lin, A. P. Seitsonen, H. Brune, J. V. Barth and K. Kern, Supramolecular control of the magnetic anisotropy in two-dimensional high-spin Fe arrays at a metal interface, Nature Materials 8, 189 - 193 (2009)

• Satyabrata Raj, Anirban Chkraborty, Debraj Choudhury, Takafumi Sato, Takashi Taka- hashi, Priya Mahadevan, Jun Fujii, Ivana Vobornik and D. D. Sarma, Three-dimensional band structure of highly metallic Na0.8WO3 by angle-resolved photoemission spectroscopy, Phys. Rev. B 79, 035119 (2009).

• Pralay K. Santra, Ranjani Viswanatha, Steve M. Daniels, Nigel Pickett, Jason M. Smith, Paul O’Brien and D. D. Sarma, Investigation of the Internal Heterostructure of Highly Luminescent Quantum Dot-Quantum Well Nanocrystals, J. Am. Chem. Soc. 131, 470 (2009.

• Soumendu Datta, Mukul Kabir, Tanusri Saha-Dasgupta, and D. D. Sarma, Study of structural stability and electronic structure of nonstoichiometric CdS nano clusters from first principles, J. Nanosci. Nanotech 9, 5489 (2009).

• Roby Cherian, Ashis Kumar Nandy, Priya Mahadevan, and D. D. Sarma, Can Nano Silicon be Made Optically Active?, J. Nanosci. Nanotech. 9, 5561 (2009).

• Angshuman Nag, and D. D. Sarma, Solvothermal Synthesis of InP Quntum Dots, J. Nanosci. Nanotech. 9, 5633 (2009).

2010 - 2009 - 2008 - 2007 - 2006

2008

• Subhra Sen Gupta, Priya Mahadevan, S. Mondal, S. R. Krishnakumar, and D. D. Sarma, Theoretical Investigation of The Spin Reorientation Transition In Epitaxial Films of NiO, AIP Conference Proceeding 1003, 28 (2008).

• Molly De Raychaudhury, T. Saha-Dasgupta, and D. D. Sarma, Origin of Ferromagnetism In Tl2Mn2O7 And CuCr2S4, AIP Conference Proceeding 1003, 130 (2008).

• Srimanta Middey, Priya Mahadevan, and D. D. Sarma, Invalidity Of A Localized Spin Mechanism For SrRuO3 and CaRuO3, AIP Conference Proceeding 1003, 148 (2008).

• Ashis K. Nandy, Priya Mahadevan, and D. D. Sarma, Chemical Pressure Effects On Tc In Double Perovskite Oxides A2FeMoO6 (A = Ba, Sr), AIP Conference Proceeding 1003, 166 (2008).

• Somnath Jana, Priya Mahadevan, and D. D. Sarma, Electronic Structure of Ca2CuO2Cl2, AIP Conference Proceeding 1003, 175 (2008).

• D. Di Castro, P. Dore, R. Khasanov, H. Keller, P. Mahadevan, Sugata Ray, D. D. Sarma and P. Postorino, Pressure effects on the magnetic transition temperature in ordered double perovskites, Phys. Rev. B 78,184416 (2008).

• Soumendu Datta, Tanusri Saha-Dasgupta and D. D. Sarma, Wannier function Study of Relative Stability of Zinc-blende and Wurtzite structure in CdX(X = S, Se, Te) series,J. Phys.:Condens. Matter 20, 445217 (2008)

• Angshuman Nag, S. Chakraborty, and D. D. Sarma, To dope Mn2+ in a semiconducting nanocrystal, J. Am. Chem. Soc. 130, 10605 (2008).

• S. Raj, T. Sato, S. Souma, T. Takahashi, D. D. Sarma, Priya Mahadevan, J. C. Cam- puzano, M. Greenblatt, and W. H. McCarroll, Direct evidence for hidden one-dimensional Fermi surface of hexagonal K0.25WO3, Phys. Rev. B 77, 245120 (2008)

• Prabuddha Sanyal, Subhra Sen Gupta, Nandan Pakhira, H. R. Krishnamurthy, D. D. Sarma and T. V. Ramakrishnan, Theory of the unusual doping and temperature depen- dence of photoemission spectra in manganites,Euro Phys. Lett. 82, 47010 (2008)

• Hena Das, Umesh V. Waghmare, T. Saha-Dasgupta, D.D. Sarma, Electronic structure, phonons and dielectric anomaly in ferromagnetic insulating double-pervoskite La2NiMnO6, Phys. Rev. Lett. 100, 186402 (2008)

• Angshuman Nag, Akshay Kumar, P. Prem Kiran, S. Chakraborty, G. Ravindra Kumar and D. D. Sarma, Optically Bi-functional Hetero-Structured Nanocrystals,J. Phys. Chem. C 112, 8229 (2008).

• S. Datta, M. Kabir, T. SahaDasgupta, D.D. Sarma, First principle study of structural stability and electronic structure of CdS nanoclusters, J. Phys. Chem. C 112, 8206 (2008)

• Angshuman Nag, Sameer Sapra, Subhra Sen Gupta, Ankita Prakash, Ajit Ghangrekar, N. Periasamy and D. D. Sarma, Luminescence in Mn doped CdS nanocrystals, Bull. Mater. Sci. 31, 561 (2008)

2010 - 2009 - 2008 - 2007 - 2006

2007

•  D. Marrocchelli, P. Postorino, D. Di Castro, E. Arcangeletti, P. Dore, M. Cestelli Guidi, Sugata Ray, and D.D. Sarma, Pressure and temperature dependence of the Fano reso- nance in the Raman spectrum of A2FeMoO6 (A = Sr, Ca) systems, Phys. Rev. B 76, 172405 (2007)

• Ranjani Viswanatha and D. D. Sarma, Growth of Nanocrystals in Solution, Nanomaterials Chemistry, Wiley-VCH, Eds: C. N. R. Rao, A. Muller, A. K. Cheetham, pp 139-170, (2007).

• Angshuman Nag and D. D. Sarma, White Light from Mn2+-Doped CdS Nanocrystals: A New Approach, J. Phys. Chem. C (Letters) 111, 13641 (2007).

• T. Saha-Dasgupta, Molly De Raychaudhury, and D.D. Sarma, Ferromagnetism in metallic chalcospinels CuCr2S4 and CuCr2Se4, Phys. Rev. B 76, 054441 (2007)

• M. Kobayashi, K. Tanaka, A. Fujimori, Sugata Ray, and D.D. Sarma, Critical test for Altshuler-Aronov Theory: Evolution of the density of states singularity in double perovskite Sr2FeMoO6 with controlled disorder, Phys. Rev. Lett. 98, 246401 (2007).

• Ranjani Viswanatha, Pralay K. Santra, Chandan Dasgupta, and D. D. Sarma, Growth mechanism of nanocrystals in solution: ZnO, a case study,Phys. Rev. Lett. 98, 255501 (2007)

• Angshuman Nag, Sameer Sapra, C. Nagamani, Ajay Sharma , N. Pradhan, S. V. Bhat and D. D. Sarma, A Study of Mn2+ Doping in CdS Nanocrystals,Chem. Mater. 19, 3252 (2007)

• S. Raj, H. Matsui, S. Souma, T. Sato, T. Takahashi, A. Chakraborty, D. D. Sarma, P. Mahadevan, S. Oishi, W. H. McCarroll, and M. Greenblatt, Electronic structure of sodium tungsten bronzes NaxWO3 by high-resolution angle-resolved photoemission spectroscopy,Phys. Rev. B. 75, 155116, (2007).

• D.D. Sarma, Sugata Ray, K. Tanaka, M. Kobayashi, A. Fujimori, P. Sanyal, H.R. Krishnamurthy and C. Dasgupta, Intergranular magnetoresistance in Sr2FeMoO6 from a magnetic tunnel barrier mechanism,Phys. Rev. Lett. 98, 246401 (2007).

•  Ranjani Viswanatha, Heinz Amenitisch and D. D. Sarma, Growth Kinetics of ZnO nanocrystals: A few surprises, J. Am. Chem. Soc. 129, 4470 (2007)

• Angshuman Nag, Sameer Sapra, S. Chakraborty, S. Basu and D. D. Sarma, Synthesis of CdSe Nanocrystals in a Noncoordinating Solvent: Effect of Reaction Temperature on Size and Optical Properties, J. Nanosci. Nanotech. 7, 1965 (2007).

• Ranjani Viswanatha, Sameer Sapra, Heinz Amenitsch, Barbara Sartori and D. D. Sarma, Growth of Semiconducting Nanocrystals of CdS and ZnS, J. Nanosci. Nanotech. 7, 1726 (2007).

• Moazzam Ali and D. D. Sarma, Synthesis of ZnSe quantum dots and ZnSe-ZnS core/shell nanostructures, J. Nanosci. Nanotech. 7, 1960 (2007).

• Moazzam Ali, Soma Chattopadhyay, Angshuman Nag, Akshay Kumar, Sameer Sapra, S. Chakraborty and D. D. Sarma, White-light emission from a blend of CdSeS nanocrystals of different Se:S ratio, Nanotechnology 18, 075401 (2007).

• S. Chattopadhyay, S.D. Kelly, T. Shibata, R. Viswanatha, M. Balasubramanian, S. Stoupin, C.U. Segre and D.D. Sarma, EXAFS Studies of Nanocrystals of Zn1−x MnxO: A Dilute Magnetic Semiconductor Oxide System, in Proceedings of X-Ray Absorption Fine Struc- ture XAFS13, edited by B. Hedman and P. Pianetta, American Institute of Physics. Volume CP882, Year 2007, 809- 811.

• Molly De Raychaudhury, T. Saha-Dasgupta, and D. D. Sarma, Theoretical study of doped Tl2Mn2O7 and Tl2Mn2O7 under pressure, Phys. Rev. B 75, 014443 (2007).

•  S. Raj, D. Hashimoto, H. Matsui, S. Souma, T. Sato, T. Takahashi, S. Ray, A. Chakraborty, D. D. Sarma, P. Mahadevan, S. Oishi, W. H. McCarroll, M. Greenblatt, Metal-insulator transition in sodium tungsten bronzes, NaxWO3, studied by angle-resolved photoemission spectroscopy,J. Magen. Mag. Mater 310, 231 (2007)

• Suparna Banerjee, Parukuttyamma Sujatha Devi, Dinesh Topwal, Suman Mandal, and Krishnakumar Menon, Enhanced Ionic Conductivity in Ce0.8Sm0.2O1.9: Unique Effect of Calcium Co-doping, Adv. Funct. Mater. 17, 284, 2007

2010 - 2009 - 2008 - 2007 - 2006

2006

• U. Manju, V.P.S. Awana, H. Kishan, D. D. Sarma, X-ray photoelectron spectroscopy of superconducting RuSr2Eu1.5Ce0.5Cu2O10 and nonsuperconducting RuSr2EuCeCu2O10, Phys. Rev. B 74, 245106 (2006).

• Ranjani Viswanatha, S. Chakraborty, S. Basu and D. D. Sarma, Blue emitting Copper doped Zinc Oxide nanocrystals,J. Phys. Chem. B (Lett.) 110, 22310 (2006).

• D. Chaudhuri and D. D. Sarma, BF3-doped polyaniline: A novel conducting polymer,Pramana 67, 135 (2006).

• Sameer Sapra, J. Nanda, Jeffrey M. Pietryga, Jennifer A. Hollingsworth, and D. D. Sarma, Unraveling internal structures of highly luminescent PbSe Nanocrystallites using variable-energy synchrotron radiation Photoelectron Spectroscopy,J. Phys. Chem. B 110, 15244 (2006).

• V. B. Shenoy, D. D. Sarma and C.N.R. Rao, Electronic Phase Separation in Correlated Oxides: The Phenomenon, its Present Status and Future Prospects,ChemPhysChem 7, 2053 (2006).

• Debangshu Chaudhuri and D. D. Sarma, Blue emitting Polyaniline,Chem. Commun. 2681 (2006).

• S. Raj, D. Hashimoto, H. Matsui, S. Souma, T. Sato, T. Takahashi, D. D. Sarma, Priya Mahadevan, and S. Oishi, Angle-Resolved Photoemission Spectroscopy of the insulating NaxWO3: Anderson localization, polaron formation, and remnant Fermi surface,Phys. Rev. Lett. 96, 147603 (2006).

• S. Ray, D. D. Sarma and R. Vijayaraghavan, Electron-spectroscopic investigation of the metal-insulator transition in Sr2Ru1−xTixO4 (x = 0.0 − 0.6), Phys. Rev. B 73, 165105 (2006).

• K. Maiti, U. Manju, S. Ray, P. Mahadevan, I.H. Inoue, C. Carbone, and D.D. Sarma, Understanding the bulk electronic structure of Ca1−xSrxVO3, Phys. Rev. B 73, 052508 (2006).

• T. Saha-Dasgupta, Molly De Raychaudhury and D. D. Sarma, Origin of Ferrmomagnetism and its pressure and doping dependence in Tl2Mn2O7, Phys. Rev. Lett. 96, 087205 (2006).

•  Dinesh Topwal, D. D. Sarma, H. Kato, Y. Tokura and M. Avignon, Structural and Magnetic properties of Sr2Fe1+xMo1−xO6 with -1 ≤ x ≤ 0.25, Phys. Rev. B 73, 094419 (2006).

• Debangshu Chaudhuri, Ashwani Kumar, R. Nirmala, D. D. Sarma, M. Garc ́ia-Herna ́ndez, L. S. Sharath Chandra and V. Ganesan, Transport and magnetic properties of conducting polyaniline doped with BX3 (X = F, Cl and Br), Phys. Rev. B 73, 075205 (2006).

• Dinesh Topwal, U. Manju, S. Ray, S. Raj, D. D. Sarma, S.R. Krishnakumar, M. Bertolo, S. La Rosa and G. Cautero, A microspectroscopic study of the electronic inhomogeneity of ordered and disordered Sr2FeMoO6, J. Chem. Sci. 118, 87 (2006).

• F. Bardelli, C. Meneghini, S. Mobilio, Sugata Ray and D. D. Sarma, XAFS study on Sr2FeMoxW1−xO6 double perovskite series, Materials Science and Engineering B 126, 226 (2006).

• C. Monesi, C. Meneghini, F. Bardelli, M. Benfatto, S. Mobilio, U. Manju, and D. D. Sarma, Quantitative structural refinement of Mn K edge XANES in LaMnO3 and CaMnO3 perovskites, Nucl. Instr. Methods Phys. Res. B 246, 158 (2006).