B.K. Rai
University of Memphis
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by B.K. Rai.
ieee international magnetics conference | 2015
B.K. Rai; L. Wang; Sanjay R. Mishra
M-type hexaferrites are focused of much research because of its outstanding properties such as high saturation magnetism (Ms), high coercivity (Hc), high permeability and low conductive looses, excellent chemical stability, and corrosion resistivity. Because of these properties M-type ferrite find wide industrial applications ranging from microwave devices to recording media [1]. The magnetic and electric properties of these ferrites can be tuned by replacing Fe3+ or Sr2+/Ba2+ with magnetic or non-magnetic ion. The result of these substitutions is to alter magnetocrystalline anisotropy and magnetization to suite particular application. Recent reports have shown the effect of high concentration of RE3+ doping in the M-type of ferrite [2, 3, 4, 5]. The work by Wang [5], the magnetism reduced from 64 emu/g to 64 emu/g with doping of lanthanum (La) with x=0.25at 1200°C while the coercivity was increased greatly from 1.95 kOe to 3.4 kOe. Karimis group [6] showed that the small amount of Ce doping in ferrite leads to variation in the lattice parameter due to dual valence Ce3+/4+. In the present study we have synthesized SrRExFe12-xO19 (RE=Tb or Dy) where RE ions are known display multivalence. Consequently it is important to understand the concomitant structural and magnetic changes resulting from variation in RE valency. The valency changes in turn changes their ionic radii and anisotropy.
Journal of Magnetism and Magnetic Materials | 2012
H. Luo; B.K. Rai; Sanjay R. Mishra; Van Vuong Nguyen; J. P. Liu
Journal of Alloys and Compounds | 2013
B.K. Rai; Sanjay R. Mishra; Van Vuong Nguyen; J. P. Liu
Journal of Nanoscience and Nanotechnology | 2014
B.K. Rai; L. Wang; Sanjay R. Mishra; Van Vuong Nguyen; J. P. Liu
Nanoscale | 2012
Saheel Bhana; B.K. Rai; Sanjay R. Mishra; Yongmei Wang; Xiaohua Huang
Materials Research Bulletin | 2015
L. Wang; B.K. Rai; Sanjay R. Mishra
Journal of Alloys and Compounds | 2013
B.K. Rai; Sanjay R. Mishra; Van Vuong Nguyen; J. P. Liu
Journal of Magnetism and Magnetic Materials | 2013
B.K. Rai; Sanjay R. Mishra
MRS Online Proceedings Library Archive | 2013
L. Wang; B.K. Rai; Sanjay R. Mishra
Journal of Magnetism and Magnetic Materials | 2014
B.K. Rai; K.S. Syed Ali; Sanjay R. Mishra; S. Khanra; K. Ghosh