Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Subhra Sen Gupta"'
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5eb1c2a81575da8f9b1ec7ae99516c77
https://doi.org/10.1103/physrevb.107.094205
https://doi.org/10.1103/physrevb.107.094205
Autor:
Ajit Ghangrekar, D. D. Sarma, Angshuman Nag, Sameer Sapra, A.S. Prakash, Subhra Sen Gupta, N. Periasamy
Publikováno v:
Bulletin of Materials Science. 31:561-568
We have synthesized Mn-doped CdS nanocrystals (NCs) with size ranging from 1.8-3 nm. Photoluminescence (PL) spectra of the doped NCs differ from that of the undoped NCs with an additional peak due to Mn d-d transitions. Electron paramagnetic resonanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57c0824db739bfe9cfef0b568b9e00ee
https://doi.org/10.1007/s12034-008-0087-0
https://doi.org/10.1007/s12034-008-0087-0
Autor:
Parlapalli V. Satyam, Ranjani Viswanatha, D. D. Sarma, Subhra Sen Gupta, Biswarup Satpati, Sameer Sapra, B. N. Dev
Publikováno v:
Scopus-Elsevier
We report the synthesis and characterization of several sizes of Mn-doped ZnO nanocrystals, both in the free-standing and the capped particle forms. The sizes of these nanocrystals could be controlled by capping them with polyvinylpyrollidone under d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80832bc20205c1b684ccf7efe2ae5b99
https://doi.org/10.1021/jp049960o
https://doi.org/10.1021/jp049960o
Autor:
Hideomi Koinuma, Jun Okabayashi, Takashi Mizokawa, Tomoaki Fukumura, Masashi Kawasaki, D. D. Sarma, A. Fujimori, M. Oshima, C. T. Chen, Subhra Sen Gupta, K. Ono, Masaki Mizuguchi, M. Yuri
Publikováno v:
Journal of Applied Physics. 95:3573-3575
We have investigated the electronic structure of Zn1−xMxO (M: 3d transition metal) by x-ray absorption spectroscopy. Using configuration–interaction cluster-model analyses, electronic structure parameters have been deduced and their chemical tren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9b7b883671a0f3a64733b46c153a044
https://doi.org/10.1063/1.1652248
https://doi.org/10.1063/1.1652248
Autor:
Arata Tanaka, Gerald T. Seidler, George A. Sawatzky, Maurits W. Haverkort, Subhra Sen Gupta, J. A. Bradley
Publikováno v:
Physical Review B. 84
We develop the theory for shallow-core to valence excitations when the multiplet spread is larger than the core-hole attraction, e.g., if the core and valence orbitals have the same principal quantum number. This results in a cross-over from bound to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2a8a3605e90875e9d82b3ac2ea755f9
https://doi.org/10.1103/physrevb.84.075134
https://doi.org/10.1103/physrevb.84.075134
Autor:
Kevin T. Moore, Gerald T. Seidler, David Clark, Maurits W. Haverkort, J. A. Bradley, Subhra Sen Gupta, George A. Sawatzky, S. D. Conradson, Stosh A. Kozimor, Kevin S. Boland
We report nonresonant inelastic x-ray scattering from the semi-core 5d levels of several actinide compounds. Dipole-forbidden, high-multipole features form a rich bound-state spectrum dependent on valence electron configuration and spin-orbit and Cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::008ce801d776117bbe302c34e004b042
http://arxiv.org/abs/1001.5219
http://arxiv.org/abs/1001.5219
Autor:
D. D. Sarma, Sylvain Clair, Stéphane Pons, Alexandre Dmitriev, Pietro Gambardella, Sebastian Stepanow, Frank M. F. de Groot, Nian Lin, Johannes V. Barth, Subhra Sen Gupta, Jan Honolka, Harald Brune, Ari P. Seitsonen, Magalí Lingenfelder, Klaus Kern, Stefan Stanescu, Peter Bencok
Publikováno v:
Nature Materials
Nature Materials, 2009, 8 (3), pp.189-193. ⟨10.1038/NMAT2376⟩
Nature Materials, 8(3), 189. Nature Publishing Group SN
Nature Materials, Nature Publishing Group, 2009, 8 (3), pp.189-193. ⟨10.1038/NMAT2376⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Nature Materials, 2009, 8 (3), pp.189-193. ⟨10.1038/NMAT2376⟩
Nature Materials, 8(3), 189. Nature Publishing Group SN
Nature Materials, Nature Publishing Group, 2009, 8 (3), pp.189-193. ⟨10.1038/NMAT2376⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
5 pages, 3 figures.-- Supplementary information (Sample preparation, Suppl. figures S1-S6, tables S1-S3, 17 pages) available at: http://www.nature.com/nmat/journal/vaop/ncurrent/extref/nmat2376-s1.pdf
Article in press.
Magnetic atoms at sur
Article in press.
Magnetic atoms at sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b3d925ddfd798b1766235606c378489
https://amu.hal.science/hal-01896182
https://amu.hal.science/hal-01896182
Autor:
Subhra Sen Gupta, Priya Mahadevan, S. Mandal, S. R. Krishnakumar, D. D. Sarma, Amitabha Ghoshray, Bilwadal Bandyopadhyay
Publikováno v:
AIP Conference Proceedings.
We study theoretically the spin reorientation transition in thin epitaxial films of NiO grown on Ag and MgO. Experimentally, the Ni spins point out‐of‐plane for films grown on the MgO substrate and in‐plane for those on the Ag substrate. We suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::438d1dfa1a3d42a0be45e9a6ae3c3d13
https://doi.org/10.1063/1.2928966
https://doi.org/10.1063/1.2928966
Autor:
Carmelita Carbone, N. Bonini, D. D. Sarma, S. R. Krishnakumar, C. Grazioli, Subhra Sen Gupta, Stefano Turchini, Dario Alfè, Stefano Baroni, M. Veronese, Andrea Dal Corso
Publikováno v:
Physical Review Letters. 95
The occurrence of a noncollinear magnetic structure at a Mn monolayer grown epitaxially on Fe(100) is predicted theoretically, using spinor density-functional theory, and observed experimentally, using x-ray magnetic circular dichroism (XMCD) and lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::764b18e52464926df57956e727a626c8
https://doi.org/10.1103/physrevlett.95.117201
https://doi.org/10.1103/physrevlett.95.117201
Autor:
C, Grazioli, Dario, Alfè, S R, Krishnakumar, Subhra, Sen Gupta, M, Veronese, S, Turchini, Nicola, Bonini, Andrea, Dal Corso, D D, Sarma, Stefano, Baroni, C, Carbone
Publikováno v:
Physical review letters. 95(11)
The occurrence of a noncollinear magnetic structure at a Mn monolayer grown epitaxially on Fe(100) is predicted theoretically, using spinor density-functional theory, and observed experimentally, using x-ray magnetic circular dichroism (XMCD) and lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4aa35d438d71dffef942c0c76b53df36
https://pubmed.ncbi.nlm.nih.gov/16197039
https://pubmed.ncbi.nlm.nih.gov/16197039