Joohyun Jung

POLARON ABSORPTION IN A PEROVSKITE MANGANITE LA0.7CA0.3MNO3

Temperature dependent optical conductivity spectra of a La0.7Ca0.3MnO3 (LCMO) sample were measured. In the metallic regime at very low temperatures, they clearly showed two types of absorption features, i.e., a sharp Drude peak and a broad mid-infrared absorption band, which could be explained as coherent and incoherent bands of a large lattice polaron. This elementary excitation in LCMO was found to be in a strong coupling regime and to have interactions with the spin degree of freedom.

Melting of charge/orbital ordered states in Nd 1 / 2 Sr 1 / 2 MnO 3 : Temperature and magnetic-field-dependent optical studies

We investigated the temperature

Far-infrared transmission studies of a c -axis-oriented superconducting MgB 2 thin film

(T=15\ensuremath{\sim}290\mathrm{K})

Osteochondrodysplasia in three Scottish Fold cats

and the magnetic-field-dependent

Spin-orbital pattern dependent polaron absorption in manganites.

(H=0\ensuremath{\sim}17\mathrm{T})

Optical investigations of the charge gap in orbital-ordered La 1 / 2 Sr 3 / 2 MnO 4

optical conductivity spectra of a charge-orbital-ordered manganite

Scaling Behavior of Spectral Weight Changes in Perovskite Manganites La 0 . 7 − y Pr y Ca 0.3 MnO 3

{\mathrm{Nd}}_{1/2}{\mathrm{Sr}}_{1/2}{\mathrm{MnO}}_{3}.

Complicated nature of the gap in MgB 2 : Magnetic-field-dependent optical studies

With variation of T and H, large spectral weight changes were observed up to 4.0 eV. These spectral weight changes could be explained using the polaron picture. Interestingly, our results suggested that some local ordered state might remain above the charge ordering temperature, and that the charge/orbital melted state at a high magnetic field (i.e., at

Comparison of echocardiography with dual-source computed tomography for assessment of left ventricular volume in healthy Beagles

H=17\mathrm{T}

Three-dimensional CT angiography of the canine hepatic vasculature

and