106 citations · 152 across the 11 of their papers we have counts for
11 papers
Implications of Charge Ordering in the High Tc Cuprate Superconductors in the Far-infrared Spectroscopy
Y. H. Kim, P. H. Hor
We addressed the issue of the absence of the far-infrared signatures pertaining to charge ordering in the published far-infrared reflectivity data of La2-xSrxCuO4 single crystals w…
In-plane and Out-of-plane Plasma Resonances in Optimally Doped La1.84Sr0.16CuO4
Y. H. Kim, P. H. Hor, X. L. Dong +2
We addressed the inconsistency between the electron mass anisotropy ratios determined by the far-infrared experiments and DC conductivity measurements. By eliminating possible sour…
Observation of the predicted charge collective mode of the Tc = 45 K superconducting phase of La2CuO4+δ
Y. H. Kim, Y. S. Song, P. H. Hor
We report the far-infrared (far-IR) observation of the Goldstone mode at ~ 72 cm-1 (~ 9 meV) predicted to exist in the superconducting phase of the transition temperature (Tc) at 4…
Possible Origin of the Anomalous Far-infrared Absorption by Small Metal Particles
Y. H. Kim, Günter Schmid
We have carried out the far-infrared transmission measurements on the ligand stabilized Au55 particles dispersed in CsI. We have found that there exists the crossover energy Ec ~ 1…
Measurement of the Energy Gap of Au55 Nanoparticles Using Far-infrared Transmission Spectroscopy
Y. H. Kim, Xuandong Zhao, Günter Schmid
We have carried out far-infrared (far-IR) transmission measurements on the ligand stabilized Au55 nanoparticles dispersed in Teflon at volume fractions ranging from 0.2% to 1%. Ins…
Field-induced Tomonaga-Luttinger liquid phase of a two-leg spin-1/2 ladder with strong leg interactions
Tao Hong, Y. H. Kim, C. Hotta +10
We study the magnetic-field-induced quantum phase transition from a gapped quantum phase that has no magnetic long-range order into a gapless phase in the spin-1/2 ladder compound…