Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Ratnakar Palai"'
Autor:
Neeraj Panwar, Jostin P. Joby, Surendra Kumar, Indrani Coondoo, M. Vasundhara, Nitu Kumar, Ratnakar Palai, Rahul Singhal, Ram S. Katiyar
Publikováno v:
AIP Advances, Vol 8, Iss 5, Pp 055818-055818-7 (2018)
Impact of co-doping (Gd and Mn) on the magnetic properties has been systematically investigated in SmCrO3 compound. For the synthesized compound Sm0.9Gd0.1Cr0.85Mn0.15O3 (SGCMO), below the Neel transition temperature and under low applied magnetic fi
Externí odkaz:
https://doaj.org/article/5fddc788b0314bb790cf5ed24976352b
Publikováno v:
Ferroelectrics. 589:103-122
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa3b01542ce59d6900c876f1338736dd
https://doi.org/10.1080/00150193.2022.2061224
https://doi.org/10.1080/00150193.2022.2061224
Autor:
Ratnakar Palai, Volkmar Dierolf, Wojciech M. Jadwisienczak, Manijeh Razeghi, K. Dasari, J. Wang
Publikováno v:
Journal of Luminescence. 209:237-243
We report on photoluminescence (PL) properties of GaN, GaN:Yb, InGaN, and InGaN:Yb thin films grown on (0001) sapphire substrates by plasma assisted molecular beam epitaxy (MBE). X-ray diffraction pattern of the films confirms c-axis oriented growth.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::142540eb45786c52842bba386f283003
https://doi.org/10.1016/j.jlumin.2019.01.012
https://doi.org/10.1016/j.jlumin.2019.01.012
Autor:
Hannu Huhtinen, R. Martinez, Ratnakar Palai, S. Dussan, Wojciech M. Jadwisienczak, Claudia Zuluaga
Publikováno v:
MRS Advances. 4:675-682
We report on structural, magnetic, optical, and dielectric properties of rare earth (Er and Yb)-doped ZnO nanoparticles with Na-co-doping for charge compensation by sol-gel process. The effect of doping concentration on the structural and dielectric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e24ca65ef0d06c090af2bb62a429a03
https://doi.org/10.1557/adv.2019.66
https://doi.org/10.1557/adv.2019.66
Publikováno v:
Journal of Materials Science: Materials in Electronics. 29:80-85
Multiferroic ceramic composites of (1−x)Ba0.96Ca0.04TiO3–(x)ZnFe2O4 (BCT-ZF) were prepared from ferroelectric (FE) barium calcium titanate (BCT) and ferromagnetic (FM) zinc ferrite (ZF) by using the solid state reaction method with different mol%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7780320a456fc975828a3cefc64c8a1
https://doi.org/10.1007/s10854-017-7890-6
https://doi.org/10.1007/s10854-017-7890-6
Autor:
Mohamed Dammak, Wojciech M. Jadwisienczak, Z. Yahiaoui, T. Koubaa, J. Wang, T. Kallel, Ratnakar Palai, K. Dasari
Publikováno v:
Materials Science and Engineering: B. 222:26-33
We report on photoluminescence (PL) measurements of InGaN:Yb 3+ nanorods (NRs) in combination with crystal field calculations. The observed near band edge (NBE) shift has been discussed in terms of its three possible factors: Indium content fluctuati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d6d3d39bf8ffa356e52b231495812dd
https://doi.org/10.1016/j.mseb.2017.04.006
https://doi.org/10.1016/j.mseb.2017.04.006
Autor:
Balmukund Dhakar, A. Roy Choudhury, Afzaal Ahmed, Ratnakar Palai, Rakesh Kaul, Satyajit Chatterjee
Publikováno v:
Transactions of the IMF. 95:207-216
Composition, structure and properties of the products of self-propagating high-temperature synthesis (SHS) are characterised by some distinctive features. High heating rate, fast cooling after rapid completion of the reactions and steep temperature g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e607123ba4d94c04b2dca4056d36ee9
https://doi.org/10.1080/00202967.2017.1330247
https://doi.org/10.1080/00202967.2017.1330247
Publikováno v:
MRS Advances. 2:241-246
Ferromagnetic/Ferroelectric/Ferromagnetic (Ni/PZT/Ni) tri-layer artificial multiferroelectric structures in spin capacitor configuration were fabricated by sputtering ferromagnetic electrodes on PZT. Magnetocapacitance, magnetoimpedance, and phase an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f622069b731bd407d0df04f687a08524
https://doi.org/10.1557/adv.2017.31
https://doi.org/10.1557/adv.2017.31
Autor:
Fernando Aponte, R. Martinez, Satya Narayan Tripathy, Ratnakar Palai, Roberto Masso, Dillip K. Pradhan
Publikováno v:
Materials Research Express. 8:016302
We report on structural, microstructural, spectroscopic, dielectric, electrical, ferroelectric, ferromagnetic, and magnetodielectric coupling studies of BiFeO3–GdMnO3[(BFO)1–x –(GMO) x ], where x is the concentration of GdMnO3 (x = 0.0, 0.025,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fd039255d04369a59c4ff5d02bf4769
https://doi.org/10.1088/2053-1591/abdd50
https://doi.org/10.1088/2053-1591/abdd50
Autor:
D. C. Joshi, Ram Narayan Chauhan, Vasant Sathe, K. Dasari, Ratnakar Palai, P. Pramanik, Sisir Kumar Nayak, Subhash Thota, Nidhi Tiwari
Publikováno v:
physica status solidi (b). 253:2270-2282
In this article, we report a comparative analysis of various spectroscopic studies including low-temperature (25K≤T≤300K) Raman spectroscopy of cobalt-orthotitanate (Co2TiO4) and tricobalt-tetraoxide (Co3O4), and their solid solutions (1−x) Co3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f529b7daa0ac48106ad72c470a9b5e75
https://doi.org/10.1002/pssb.201600295
https://doi.org/10.1002/pssb.201600295