S
Subhra Sen Gupta
Researcher at University of British Columbia
Publications - 24
Citations - 906
Subhra Sen Gupta is an academic researcher from University of British Columbia. The author has contributed to research in topics: Stacking-fault energy & Absorption spectroscopy. The author has an hindex of 12, co-authored 22 publications receiving 856 citations. Previous affiliations of Subhra Sen Gupta include Shiv Nadar University & Indian Institute of Science.
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Journal ArticleDOI
Synthesis and Characterization of Mn-Doped ZnO Nanocrystals.
Ranjani Viswanatha,Sameer Sapra,Subhra Sen Gupta,Biswarup Satpati,Parlapalli V. Satyam,B. N. Dev,D. D. Sarma +6 more
TL;DR: Fluorescence emission, electron paramagnetic resonance, and X-ray absorption spectroscopy provide evidence for the presence of Mn in the interior as well as on the surface of the nanocrystals of Mn-doped ZnO.
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Supramolecular control of the magnetic anisotropy in two-dimensional high-spin Fe arrays at a metal interface
Pietro Gambardella,Pietro Gambardella,Pietro Gambardella,Sebastian Stepanow,Sebastian Stepanow,Alexandre Dmitriev,Alexandre Dmitriev,Jan Honolka,Frank M. F. de Groot,Magalí Lingenfelder,Subhra Sen Gupta,D. D. Sarma,Peter Bencok,Stefan Stanescu,Sylvain Clair,Stéphane Pons,Nian Lin,Ari P. Seitsonen,Harald Brune,Johannes V. Barth,Klaus Kern,Klaus Kern +21 more
TL;DR: It is shown that the supramolecular assembly of Fe and 1,4-benzenedicarboxylic acid molecules on a Cu surface results in ordered arrays of high-spin mononuclear Fe centres on a 1.5 nm square grid, opening a way to control the magnetic anisotropy in supramolescular layers akin to that used in metallic thin films.
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Luminescence in Mn-doped CdS nanocrystals
Angshuman Nag,Sameer Sapra,Subhra Sen Gupta,A.S. Prakash,Ajit Ghangrekar,N. Periasamy,D. D. Sarma,D. D. Sarma +7 more
TL;DR: In this paper, the authors synthesized Mn-doped CdS nanocrystals with size ranging from 1.8-3 nm and studied the photoluminescence (PL) lifetime decay behavior of both kinds of emissions.
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X-ray absorption spectroscopy of transition-metal doped diluted magnetic semiconductors Zn1−xMxO
Jun Okabayashi,K. Ono,Masaki Mizuguchi,M. Oshima,Subhra Sen Gupta,D. D. Sarma,Takashi Mizokawa,A. Fujimori,M. Yuri,C. T. Chen,Tomoaki Fukumura,Masashi Kawasaki,Hideomi Koinuma +12 more
TL;DR: In this paper, the electronic structure of Zn1−xMxO (M: 3d transition metal) was investigated by x-ray absorption spectroscopy using configuration-interaction cluster-model analyses.
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An x‐ray diffraction study of lattice imperfections in cold‐worked silver‐gallium (α‐phase) alloys
TL;DR: In this article, a detailed analysis of the line shifts, line asymmetry, and Fourier line shapes has been performed considering recent improvements made in X-ray diffraction profiles from four compositions of α-phase Ag-Ga alloys containing 3.55, 9.45, 13.05, and 15.90 at.