3 papers
cond-mat.mtrl-sci2016
Higher-order Landau-Devonshire theory for BaTiO3
Ilhwan Kim, Kumok Jang, Ilhun Kim +1
The higher-order Landau-Devonshire theory for BaTiO3 is proposed. The structural stabilities of some Landau potentials proposed for the phenomenology of BaTiO3 until now are discus…
cond-mat.mtrl-sci2016
Wave vector substar group in reciprocal lattice space and its representation
Il Hwan Kim, Jong Ok Pak, Il Hun Kim +2
In the paper we establish the new conception of the wave vector substar group and its representation that, in the study on translational symmetry breaking of crystal, can only cons…
cond-mat.mtrl-sci2016
Wave vector star channel and star channel group in the reciprocal lattice space of crystal
Il Hwan Kim, Jong Ok Pak, Il Hun Kim +2
In the paper, a new method determining the wave vector star channel in the reciprocal lattice space of crystal in the light of the translational symmetry breaking is proposed, and,…