Browsing Department of Physics by Author "Roy, S."

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Identification of point defects on Co-Ni codoping in SnO2 nanocrystals and their effect on the structural and optical properties

Roy, S.; Prajapati, B.; Singh, A.; Joshi, A.G.; Chatterjee, S.; Ghosh, A.K. (American Institute of Physics Inc., 2019-10-21)

Sn 0.97 - yCo 0.03Ni yO 2 (0 ≤ y ≤ 0.04) nanocrystals, with the average crystallite size in the range from 7.3 nm (for y = 0.00) to 5.6 nm (for y = 0.04), have been synthesized using a pH-controlled chemical coprecipitation ...
Room temperature exchange bias in antiferromagnetic composite BiFeO3-TbMnO3

Gupta, P.K.; Ghosh, S.; Kumar, S.; Pal, A.; Singh, P.; Alam, M.; Singh, A.; Roy, S.; Singh, R.; Singh, B.P.; Naveen kumar, N.; Schwier, E.F.; Sawada, M.; Matsumura, T.; Shimada, K.; Lin, H.-J.; Chin, Y.-Y.; Ghosh, A.K.; Chatterjee, S. (American Institute of Physics Inc., 2019-12-28)

The magnetic property of a 0.7BiFeO3-0.3TbMnO3 composite has been studied in detail and compared with that of 0.8BiFeO3-0.2TbMnO3. The magnetic properties in 0.7BiFeO3-0.3TbMnO3 are improved in manifold compared to BiFeO3. ...

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