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Mater Sci Nanotechnol 2017
Volume 1 Issue 3
Magnetic Materials 2017
Page 98
October 09-10, 2017 London, UK
International Conference on
Magnetism in rutile-type oxides
Dorj Odkhuu
1
, Tumurbaatar Tsevelmaa
2
and
Purev Taivansaikhan
1
1
Incheon National University, Republic of Korea
2
University of Ulsan, Republic of Korea
W
hile rutile-type transition metal oxides (TMO
2
) have
been widely used in a variety of important applications
such as an active catalyst, supercapacitors, batteries, and fuel
cells, an existence of intrinsic magnetism in RuO
2
has recently
drawn much attention in spintronics. In this study, we have
performed the density-functional theory plus U (DFT+U)
calculations on magnetism and magnetic anisotropy energies
(MAE) of RuO
2
and OsO
2
. These oxides are identified to favor an
antiferromagnetic phase, which is a result of mutual mechanisms
of Kramer-Anderson superexchange interaction and Jahn-Teller
effects. More remarkably, we found very large MAE up to an
order of 10 meV per transition metal atom in bulk, which are
four orders of magnitude greater than those of the conventional
transition metals. This anisotropic phenomenon further exhibits
a persistently increasing dependence of film thickness, which is
very uncommon in thin film materials.
Biography
Dorj Odkhuu has completed his PhD in Physics from University of Ulsan in
2014 and Postdoctoral studies from Ulsan National Institute of Science and
Technology and California State University Northridge. He is currently an
Assistant Professor at Incheon National University, South Korea. His research
focuses on first-principles calculations of magnetic and magnetoelectric
materials and he has published more than 40 papers in peer-reviewed journals.
odkhuu@inu.ac.krMaterials Science and Nanotechnology