D. D. Sarma's Group


	www Group

2005 - 2004 - 2003 - 2002 - 2001

2005

I. Chaitanya Lekshmi, A. Gayen, D. D. Sarma, M.S. Hegde, S.P. Chokalingam and N. Chandrasekhar,
Fabrication of cerium-doped LaNiO{3} thin films on LaAlO{3} (100) substrate by pulsed laser deposition,
J. Appl. Phys. 98, 093527 (2005).

R. Viswanatha and D. D. Sarma,
Study of growth of capped ZnO nanocrystals: a route to rational synthesis,
Chemistry - A European Journal 12, 180 (2005).

S. Raj, D. Hashimoto, H. Matsui, S. Souma, T. Sato, T. Takahashi, S. Ray, A. Chakraborty, D. D. Sarma, P. Mahadevan, W. H. McCarroll, M.Greenblatt,
Angle-resolved photoemission spectroscopy on the metallic sodium tungsten bronzes Na{x}WO{3},
Phys. Rev. B 72, 125125 (2005).

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 LaMnO{3} and CaMnO{3} perovskites,
Proceedings of EMRS, 246, 158, 2006.
F. Liscio, F. Bardelli, C. Meneghini, S. Mobilio, Sugata Ray, D. D. Sarma,
Local structure and magnetotransport in Sr{2}FeMoO{6} oxides,
Proceedings of EMRS , 246,189,2006

C. Monesi, C. Meneghini1, F. Bardelli, M. Benfatto, S. Mobilio, U. Manju and D. D. Sarma,
Local structure in LaMnO{3} and CaMnO{3} perovskites: A quantitative structural refinement of Mn K -edge XANES data,
Phys. Rev. B 72, 174104 (2005).

C. Grazioli, D. Alf, S.R. Krishnakumar, S. Sen Gupta, M. Veronese, S. Turchini, N. Bonini, A. Dal Corso, D. D. Sarma, S. Baroni and C. Carbone,
Spin-flop ordering from frustrated ferro- and antiferromagnetic interactions: A combined theoretical and experimental study of a Mn/Fe(100) monolayer,
Phys. Rev. Lett. 95, 117201 (2005).

T. Saitoh, H. Iwasawa, H. Kato, Y. Tokura, N. Hamada and D. D. Sarma,
Strong electron correlation of Re 5d electrons in Ca{2}FeReO{6} ,
J. Electron Spectrosc. Relat. Phenom. 144, 337 (2005).

D. Chaudhuri, S. Datar, R. Viswanatha, D. D. Sarma, and H. Amenitsch,
Self-organization of polyaniline nanorods: Towards achieving a higher conductivity,
Appl. Phys. Lett. 87, 093117 (2005).

Sameer Sapra and D. D. Sarma,
Simultaneous control of nanocrystal size and nanocrystal-nanocrystal separation in CdS nanocrystal assembly
Pramana 65, 565 (2005).

Ranjani Viswanatha, Sameer Sapra, Tanusri Saha-Dasgupta and D. D. Sarma,
Electronic structure of and quantum size effect in III-V and II-VI semiconducting nanocrystals using a realistic tight-binding approach,
Phys. Rev. B 72, 045333 (2005).

D. D. Sarma, Ranjani Viswanatha, Sameer Sapra, Ankita Prakash and M. Garca-Hernndez,
Magnetic Properties of Doped II-VI Nanocrystals,
J. Nanosci. Nanotech. 5, 1503 (2005).

S. Sapra, A. Prakash, A. Ghangrekar, N. Periasamy and D. D. Sarma,
Emission properties of Mn doped ZnS nanocrystals,
J. Phys. Chem. B 109, 1663 (2005).

H. Iwasawa, T. Saitoh, Y. Yamashita, D. Ishii, H. Kato, N. Hamada, Y. Tokura, and D. D. Sarma,
Strong correlation effects of the Re 5d electrons on the metal-insulator transition in Ca{2}FeReO{6},
Phys. Rev. B 71, 075106 (2005)

K. Takubo, T. Mizokawa, S. Hirata, J.-Y. Son, A. Fujimori, D. Topwal, D. D. Sarma, S. Rayaprol and E.-V. Sampathkumaran,
Electronic structure of Ca{3}CoXO{6}(X = Co, Rh, Ir) studied by x-ray photoemission spectroscopy,
Phys. Rev. B 71, 073406 (2005).

S. Sapra, R. Viswanatha and D. D. Sarma,
Electronic Structure of Semiconductor Nanocrystals: An Accurate Tight-Binding Description,
Int. J. Nanosci. 4, 893 (2005).

K. Maiti, Manju Unnikrishnan, I.H. Inoue and D.D. Sarma,
Electronic structure of early transition metal oxides,
Ca{1-x}Sr{x}VO{3} and La{1-x}Ca{x}VO{3}: What can we learn from photoelectron spectroscopy,
Thin Solid Films 486, 162 (2005).

S. Ray and D. D. Sarma,
An Interesting Magnetoresistive System: Sr{2}FeMoO{6},
Solid State Physics (India) - Proceedings of the DAE Symposium (2003), Volume 46, page 929, 2005 and cond-mat/0411400.

F. Bardelli, C. Meneghini, S. Mobilio, S. Ray and D. D. Sarma
Local structure of Sr{2}FeMo{x}W{1-x}O{6} double perovskites studied by EXAFS,
Phys. Scr. T115, 457 (2005)

S. Ray and D. D. Sarma,
Sr{2}FeMoO{6}: A prototype to understand a new class of magnetic materials,
Hyperfine Interactions 160, 67 (2005).

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2005 - 2004 - 2003 - 2002 - 2001

2004

K. Maiti, A. Kumar, D.D. Sarma,E. Weschke and G. Kaindl,
Surface and bulk electronic structure of La{1-x}Ca{x}VO{3},
Phys. Rev. B 70, 195112 (2004).

P. Mahadevan, A. Zunger and D. D. Sarma,
Unusual directional dependence of exchange energies in GaAs:Mn - Is the RKKY limit relevant,
Phys. Rev. Lett. 93, 177201 (2004)

D. D. Sarma, Dinesh Topwal, Manju U., S. R. Krishnakumar, M. Bertolo, S. La Rosa, G. Cautero, T. Y. Koo, P. A. Sharma, S-W. Cheong and A. Fujimori,
Direct observation of large electronic domains with memory effect in doped manganites,
Phys. Rev. Lett. 93, 097202 (2004).

Ranjani Viswanatha, Sameer Sapra, Subhra Sen Gupta, B. Satpati, P. V. Satyam, B. N. Dev and D. D. Sarma,
Synthesis and Characterization of Mn doped ZnO Nanocrystals,
J. Phys. Chem. B 108, 6303 (2004).

J. Okabayashi, K. Ono, M. Mizuguchi, M. Oshima, S. Sen Gupta, D. D. Sarma, T. Mizokawa, A. Fujimori, M. Yuri, C.T. Chen, T. Fukumura, M. Kawasaki and H. Koinuma,
X-ray absorption spectroscopy of transition-metal doped oxide diluted magnetic semiconductors Zn{1-x}M{x}O,
J. Appl. Phys. 95, 3573 (2004).

Sameer Sapra and D. D. Sarma,
Evolution of the electronic structure with size in II-VI semiconductor nanocrystals,
Phys. Rev. B 69, 125304 (2004).

Ranjani Viswanatha, Sameer Sapra, B. Satpati, P. V. Satyam, B. N. Dev and D. D. Sarma,
Understanding the quantum size effects in ZnO nanocrystals,
J. Materials Chem. 14, 661 (2004).

S. Raj and D. D. Sarma,
Optimization of a low energy, high brightness electron gun for inverse photoemission spectrometers,
Rev. Sci. Instr. 75, 1020 (2004).

J. Nanda, S. Sapra and D. D. Sarma,
Photoelectron Spectroscopy of Semiconducting Nanostructued Materials,
Encyclopedia of Nanoscience and Nanotechnology,
Ed. H.S. Nalwa, Vol.10, pp.711-724, (2004).

S. Sapra, J. Nanda and D. D. Sarma,
Electronic Structure Studies in Semiconducting Nanoparticles,
Encyclopedia of Nanoscience and Nanotechnology, Ed. H.S. Nalwa, Vol.3, pp.181-192, (2004).

S. Sapra and D. D. Sarma,
Electronic Structure and Spectroscopy of Semiconductor Nanocrystals in Chemistry of Nanomaterials, Properties and Applications, Wiley-VCH, Eds: C. N. R. Rao, A. Muller, A. K. Cheetham, Weinheim pp 371-404 (2004)

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2005 - 2004 - 2003 - 2002 - 2001

2003

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,
Structural and doping effects in the half-metallic double perovskite A{2}CrWO{6}, (A = Sr, Ba, and Ca)
Phys. Rev. B 68, 144431(2003).

S. R. Krishnakumar and D. D. Sarma,
X-ray photoemission study of NiS{2-x}Se{x}(x=0.0-1.2),
Phys. Rev. B. 68, 155110 (2003).

Y. Ishida, D. D. Sarma, K. Okazaki, J. Okabayashi, J. I. Hwang, H. Ott, A. Fujimori, G. A. Medvedkin, T. Ishibashi, and K. Sato,
In situ photoemission study of the room-temperature ferromagnet ZnGeP{2}:Mn.,
Phys. Rev. Lett. 91 , 107202 (2003).

Debangshu Chaudhuri, Prashanth W. Menezes, and D. D. Sarma,
Remarkable thermal stability of BF{3}-doped polyaniline,
Appl. Phys. Lett. 83 , 2348 (2003).

P. Postorino, A. Congeduti, P. Dore, A. Sacchetti, F. Gorelli, L. Ulivi, A. Kumar and D. D. Sarma,
Pressure-tuning of the electron-phonon coupling: the insulator to metal transition in manganites,
Phys. Rev. Lett. 91 , 175501 (2003).

Manju U., S. R. Krishnakumar, S. Ray, S. Raj, M. Onoda, C. Carbone and D. D. Sarma,
Electron spectroscopic investigation of metal-insulator transition in Ce{1-x}Sr{x}TiO{3}
Proc. Ind. Acad. Sci. Chem. Sci. Ser. 115 , Nos 5 & 6, 499 (2003).

S. Sapra, R. Viswanatha and D. D. Sarma,
An accurate description of quantum size effects in InP nanocrystallines over a wide range of sizes,
J. Phys. D: Appl. Phy. 36 , 1595 (2003).

K. Sato, G. A. Medvedkin, T. Ishibashi, S. Mitani, K. Takanashi, Y. Ishida, D. D. Sarma, J. Okabayashi, A. Fujimori, T. Kamatani, H. Akai,
Novel Mn-doped Chalcopyrites (INVITED). 13th Int. Conf. on Ternary and Multinary Compounds - ICTMCI3, Oct. 14-18, 2002, Paris France, Abst. 02-3;
J. Phys. Chem. Solids 64, 1461 (2003).

F. Bardelli, C. Meneghini, S. Mobilio, S. Ray and D. D. Sarma,
Local structure of Sr{2}FeMo{1-x}W{x}O{6} double perovskites studied by EXAFS,
Phys. Scr.2005,457

S. Sapra, J. Nanda, A. Anand, S. V. Bhat and D. D. Sarma,
Optical and Magnetic Properties of Manganese doped Zinc Sulfide Nanoclusters,
Journal of Nanosci. Nanotechnol. 3, 392(2003).

S. Sapra, R. Viswanatha, J. Nanda and D. D. Sarma,
Optical Properties of Mn doped zinc sulfide and zinc oxide nanoclusters,
Recent Advances in Inorganic Materials, Ed. D. Bahadur, Narosa Publishers, pp 452-457, (2003).

S. Sapra, J. Nanda and D. D. Sarma,
Semiconducting Nanoparticles,
Proc. of the Plenary 90th Session of Indian Science Congress, pages 3.4-3.30, January 2003, Bangalore.

D. Chaudhuri, A. Kumar, D. D. Sarma, M. Garca-Hernndez, J. Joshi and S. V. Bhat,
Magnetic study of an amorphous conducting polyaniline,
Appl. Phys. Lett. 82 , 1733 (2003).

S. Ray, P. Mahadevan, A. Kumar, D. D. Sarma, R. Cimino, M Pedio, L. Ferrari and A. Pesci,
Strong correlation effects in the electronic structure of Sr{2}FeMoO{6},
Phys. Rev. B. 67, 085109 (2003).

D. D. Sarma, S.R. Krishnakumar, E. Weschke, C. Schüβler-Langeheine, Chandan Mazumdar, L. Kilian, G. Kaindl, K. Mamiya, S.-I. Fujimori, A. Fujimori, and T. Miyadai,
Metal-insulator crossover behaviour at the surface of NiS{2},
Phys. Rev. B 67, 155112 (2003).

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2005 - 2004 - 2003 - 2002 - 2001

2002

D. D. Sarma, N. Shanthi and T. Saha-Dasgupta,
Estimation of electronic interaction strengths from ab-initio calculations,
to appear in Advances in Condensed Matter Science, Vol. 4, Taylor \& Francis, London, 2002.

Sameer Sapra, N. Shanthi and D. D. Sarma,
Realistic Tight Binding Model for the Electronic Structure of II-VI Semiconductors,
Phys. Rev. B 66, 205202 (2002).

S. R. Krishnakumar, N. Shanthi and D. D. Sarma,
Electronic structure of Millerite NiS,
Phys. Rev. B 66, 115105 (2002).

S. Sapra, D. D. Sarma, S. Sanvito and N. A. Hill,
Influence of quantum confinement on the electronic and magnetic properties of (Ga,Mn)As diluted magnetic semiconductor,
Nano Lett. 2, 605 (2002).

Prasanna Shah, Ajay Gupta, D. D. Sarma and K. Kawaguchi,
Mossbauer study of La{1-x}Ca{x}Mn{1-y}57Fe{y}O{3} with x =0, 0.25; y =0.01,
Hyperfine Interact. 139&140, 623-9 (2002).

K. Maiti and D. D. Sarma,
A spectroscopic investigation of the electronic structure of hole doped one dimensional cuprates, Ca{2}CuO{3} and Sr{2}CuO{3},
Phys. Rev. B 65, 174517 (2002).

J. Okabayashi, T. Mizokawa, D. D. Sarma, A. Fujimori, T. Slupinski, A. Oiwa and H. Munekata,
Electronic structure of In{1-x}Mn{x}As studied by photoemission spectroscopy: Comparison with Ga{1-x}Mn{x}As,
Phys. Rev. B (Rapid Comm.) 65, 161203 (2002).

C. Meneghini, C. Castellano, S. Mobilio, Ashwani Kumar, S. Ray and D. D. Sarma,
Local structure of hole doped manganites: influence of temperature and applied magnetic field,
J. Phys.: Condensed Matter 14, 1967 (2002).

Z. Hu, P. Mahadevan, D. D. Sarma, G. Kaindl and L. T. Tjeng,
Study of valence and covalence as well as spin states of late transition metal oxides by x-ray absorption spectroscopy,
in Recent Research Developments in Physics, (Transworld Research Network).

Z. Hu, C. Grazioli, M. Knupfer, M. S. Golden, J. Fink, P. Mahadevan, A. Kumar, S. Ray, D. D. Sarma, S. Warda, D. Reinen, S. Kawasaki, M. Takano, C. Sch�ssler-Langeheine, C. Mazumdar and G. Kaindl,
Difference in spin state and covalence between La{1-x}Sr{x}CoO{3} and La{2-x}Sr{x}Li{0.5}Co{0.5}O{4},
J. Alloy and Comp. 343, 5 (2002).

Priya Mahadevan, K. Terakura and D. D. Sarma,
On charge and orbital ordering in La{0.5}Sr{1.5}MnO{4}, Proceedings of the 4th Asian Workshop on First-Principles
Electronic Structure Calculations, Taiwan, October, 2001, pp. 40, pubished by National Centre for Theoretical Sciences, Taiwan, 2002.

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2005 - 2004 - 2003 - 2002 - 2001

2001

Sameer Sapra, J. Nanda, D. D. Sarma, F. Abed El-Al and G. Hodes,
Blue emission from cysteine ester passivated cadmium sulfide nanoclusters
Chem. Comm., 2188 (2001)

C. Meneghini, D. Levy, S. Mobilio, M. Ortolani, M. Nu\ {n}ez-Reguero, Ashwani Kumar and D. D. Sarma,
High pressure structure and electronic transport in hole-doped
La{3/4}Ca{1/4}MnO{3} perovskites,
Phys. Rev. B 65, 12111 (2001).

C. Castellano, F. Cordero, R. Cantelli, M. Ferretti and D. D. Sarma,
Dynamics of the low temperature inhomogeneous phase in manganese perovskites,
Solid State Commun. 120, 317 (2001).

D. D. Sarma and S. Ray,
Properties of a new magnetic material: Sr{2}FeMoO{6}
Proc. Ind Acad. Sci. Chem. Ser., 113, 515 (2001).

D. Chaudhuri, A. Kumar, I. Rudra, and D. D. Sarma,
Synthesis and spectroscopic characterization of highly conducting BF{3}-doped polyaniline,
Adv. Mater. 13, 1548 (2001).

S. Ray, A. Kumar, D. D. Sarma, R. Cimino, S. Turchini, S. Zennaro and N. Zema,
Electronic and magnetic structure of Sr{2}FeMoO{6},
Phys. Rev. Lett. 87, 097204 (2001).

J. Nanda and D. D. Sarma,
Photoemission spectroscopy of size selected zinc sulfide nanocrystallites,
J. Appl. Phys. 90, 2504 (2001).

Priya Mahadevan, K. Terakura and D. D. Sarma,
Spin, charge, and orbital ordering in La{0.5}Sr{1.5}MnO{4},
Phys. Rev. Lett. 87, 066404 (2001).

K. Maiti, D. D. Sarma, M. J. Rozenberg, I. H. Inoue, H. Makino, O. Goto, M. Pedio, and R. Cimino,
Electronic structure of Ca{1-x}Sr{x}VO{3}: a tale of two energy-scales,
Europhys. Lett. 55, 246 (2001).

T. Saha-Dasgupta and D. D. Sarma,
Ab initio study of disorder effects on the electronic and magnetic structure of Sr{2}FeMoO{6},
Phys. Rev. B 64, 064408 (2001).

D. D. Sarma,
A new class of magnetic materials: Sr{2}FeMoO{6} and related compounds,
Current Opinion in Solid State & Material Sciences, 5, 261 (2001).

S. Sapra and D. D. Sarma,
Electronic structure of semiconducting nanocrystallites,
Proc. of the 3rd Japan-Korea Joint Workshop on First-Principles Electronic Structure Calculations, pp. 105, 2001.

A. Congeduti, P. Postorino, P. Dore, A. Nucara, S. Lupi, S. Mercone, P. Calvani, A. Kumar and D. D. Sarma,
Infrared study of charge delocalization induced by pressure in the La{0.75}Ca{0.25}MnO{3} manganite,
Phys. Rev. B 63, 184410 (2001).

A. Congeduti, P. Postorino, E. Caramagno, M. Nardone, A. Kumar and D. D. Sarma,
Anomalous high pressure dependence of the Jahn-Teller phonon in La{0.75}Ca{0.25}MnO{3},
Phys. Rev. Lett. 86, 1251 (2001).

S. R. Krishnakumar, T. Saha-Dasgupta, N. Shanthi, P. Mahadevan, and D. D. Sarma,
Electronic structure of and covalency driven metal-insulator transition in BaCo{1-x}Ni{x}S{2},
Phys. Rev. B 63, 45111 (2001).

S. Ray, A. Kumar, S. Majumdar, E V Sampathkumaran and D. D. Sarma,
Transport and magnetic properties of Sr{2}FeMo{x}W{1-x}O{6},
J. Physics: Condensed Matter 13, 607 (2001).

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