101 citations · 207 across the 5 of their papers we have counts for
5 papers
First-principles Study of Metallic-atom Diffusion in Thermoelectric Material MgSb
Masayuki Ochi, Kazutaka Nishiguchi, Chul-Ho Lee +1
MgSb is a promising thermoelectric material that consists of nontoxic and earth-abundant elements. We investigate metallic-atom diffusion in MgSb by calculating the…
Suppression of spin-exciton state in hole overdoped iron-based superconductors
C. H. Lee, K. Kihou, J. T. Park +7
The mechanism of Cooper pair formation in iron-based superconductors remains a controversial topic. The main question is whether spin or orbital fluctuations are responsible for th…
Universality of dispersive spin-resonance mode in superconducting BaFe2As2
C. H. Lee, P. Steffens, N. Qureshi +5
Spin fluctuations in superconducting BaFe2(As1-xPx)2 (x=0.34, Tc = 29.5 K) are studied using inelastic neutron scattering. Well-defined commensurate magnetic signals are observed a…
Splitting of resonance excitations in nearly optimally doped Ba(Fe0.94Co0.06)2As2: an inelastic neutron scattering study with polarization analysis
Paul Steffens, C. H. Lee, N. Qureshi +4
Magnetic excitations in Ba(Fe0.94Co0.06)2As2 are studied by polarized inelastic neutron scattering (INS) above and below the superconducting transition. In the superconducting stat…
Magnetic dispersion and anisotropy in multiferroic BiFeO3
M. Matsuda, R. S. Fishman, T. Hong +5
We have determined the full magnetic dispersion relations of multiferroic BiFeO3. In particular, two excitation gaps originating from magnetic anisotropies have been clearly observ…