W. Choi

For high-Tc superconductors, clarifying the role and origin of the pseudogap is essential for understanding the pairing mechanism. Among the various models describing the pseudogap…

cond-mat.supr-con2017★ 3 cited

Thermal activation energy of 3D vortex matter in NaFe1-xCoxAs (x=0.01, 0.03 and 0.07) single crystals

W. J. Choi, Y. I. Seo, D. Ahmad +1

We report on the thermally activated flux flow dependency on the doping dependent mixed state in NaFe1-xCoxAs (x=0.01, 0.03, and 0.07) crystals using the magnetoresistivity in the…

cond-mat.supr-con2016★ 10 cited

Optical properties of the optimally doped Ca $_{8.5}$ La $_{1.5}$ (Pt $_{3}$ As $_{8}$ )(Fe $_{2}$ As $_{2}$ ) $_{5}$ single crystal

Yu-il Seo, Woo-Jae Choi, Shin-ich Kimura +2

We have measured the reflectivity of the optimally doped Ca $_{8.5}$ La $_{1.5}$ (Pt $_{3}$ As $_{8}$ )(Fe $_{10}$ As $_{10}$ ) single crystal ( $T_{c}$ = 32.8K) over the broad frequency range from 4…

cond-mat.supr-con2016★ 9 cited

Fluctuation magnetoconductivity in pristine and protonirradiated Ca8.5La1.5(Pt3As8)(Fe2As2)5 single crystals

D. Ahmad, Y. I. Seo, W. J. Choi +1

The influence of the proton irradiation on the thermally fluctuation-induced conductivity in Ca8.5La1.5(pt3As8)(Fe2As2)5 single crystal was investigatyed. The in-plane magnetocondu…

Evidence for a preformed Cooper pair model in the pseudogap spectra of a Ca10(Pt4As8)(Fe2As2)5 single crystal with a nodal superconducting gap

Thermal activation energy of 3D vortex matter in NaFe1-xCoxAs (x=0.01, 0.03 and 0.07) single crystals

Optical properties of the optimally doped Ca8.5​La1.5​(Pt3​As8​)(Fe2​As2​)5​ single crystal

Fluctuation magnetoconductivity in pristine and protonirradiated Ca8.5La1.5(Pt3As8)(Fe2As2)5 single crystals

Optical properties of the optimally doped Ca $_{8.5}$ La $_{1.5}$ (Pt $_{3}$ As $_{8}$ )(Fe $_{2}$ As $_{2}$ ) $_{5}$ single crystal