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9 papers · 1 filter
Unprecedented anisotropic metallic state in BaFe2As2 revealed by optical spectroscopy
M. Nakajima, T. Liang, S. Ishida +8
An ordered phase showing remarkable electronic anisotropy in proximity to the superconducting phase is now a hot issue in the field of high-transition-temperature superconductivity…
Superconductivity in the Honeycomb-Lattice Pnictide SrPtAs
Yoshihiro Nishikubo, Kazutaka Kudo, Minoru Nohara
We report superconductivity in the honeycomb-lattice pnictide SrPtAs with Tc = 2.4 K. To our knowledge, SrPtAs is the first superconducting pnictide with a honeycomb lattice struct…
Theoretical prediction of rotating magnon wavepacket in ferromagnets
Ryo Matsumoto, Shuichi Murakami
We theoretically show that the magnon wavepacket has a rotational motion in two ways; a self-rotation and a motion along the boundary of the sample (edge current). They are similar…
Two-orbital Kondo effect in quantum dot coupled to ferromagnetic leads
Hitoshi Yoshizumi, Kensuke Inaba, Tomoko Kita +1
We study the Kondo effect of a two-orbital vertical quantum dot (QD) coupled to two ferromagnetic leads by employing an equation of motion method. When the ferromagnetic leads are…
Determination of the pairing state in iron-based superconductors through neutron scattering
Yuki Nagai, Kazuhiko Kuroki
We calculate the spin susceptibility in the s_{+-} and s_{++} superconducting states of the iron pnictides using the effective five orbital model and considering the quasiparticle…
Ferroelectricity of Li-doped silver niobate (Ag,Li)NbO3
Desheng Fu, Makoto Endo, Hiroki Taniguchi +3
Phase evolution in (Ag1-xLix)NbO3 (ALN) solid solution was investigated by X-ray diffraction technique, dielectric and polarization measurements. It is shown that small substitutio…