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S e p t e m b e r 2 4 - 2 6 , 2 0 1 8 | B u d a p e s t , H u n g a r y
OF EXCELLENCE
IN INTERNATIONAL
MEETINGS
YEARS
Magnetic Materials 2018 Materials Science and Nanotechnology | Volume 2
MAGNETISM AND
MAGNETIC MATERIALS
2nd International Conference on
Satadeep Bhattacharjee et al., Mater Sci Nanotechnol 2018, Volume 2
IMPROVING THE STABILITY AND
MAGNETIC HARDENING OF FE16N2 BY
ALLOYING: A FIRST-PRINCIPLES STUDY
Satadeep Bhattacharjee3, Krishnamohan Thekkepat 1,2
Mahesh Chandran3, Pil-Ryung Cha4, Jung Hae Choi1
and Seung-Cheol Lee1,2,3,4
1Korea Institute of Science and Technology, Republic of Korea
2KIST School, Korea University of Science and Technology, Republic of Korea
3Indo-Korea Science and Technology Center, India
4Kookmin University, Republic of Korea
Fe16N2, a promising alternative to rare-earth based permanent magnets,
has a very limited applicability due to its poor thermal stability. In this
work, using density functional theory method, we investigate the e ect of
alloying Fe16N2 with 3d and 4d transition group elements on its formation
energy and magnetic properties. Using a systematic screening procedure, we
propose Vanadium (V) as an excellent alloying element that improves both
the stability and magneto-crystalline anisotropy energy (MAE) of Fe16N2. Our
work demonstrates that alloying Fe16N2 with V improves its MAE by 20% in
addition to making it suitable for high temperature applications. Synergistic
improvement in both these performance parameters has not been reported
so far. Our work provides useful inputs for experimental e orts to stabilize
Fe16N2.
Satadeep Bhattacharjee holds a PhD degree in phys-
ics and has expertise in the broad area of materials
theory. Prior to joining the IKST, he worked in different
places such as University of Bonn (Germany), Univer-
sity of Liege (Belgium), Uppsala University (Sweden),
RIKEN (Japan) and University of Arkansas in USA. He
has authored 20+ research papers in reputed jour-
nals. Satadeep has worked in different areas such
as electronic structure of low dimensional correlated
systems, multiferroics, magnetic multilayers, mag-
netic molecules, magnetic memory materials etc.
His current research interest involves heterogeneous
catalysis.
BIOGRAPHY