Hyungrak Kim

activity

20082015

most citedThe London penetration depth in single crystals of Ba(Fe_{1-x}Co_x)_2As_2 at various doping levels

103 citations · 302 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.str-el2015★ 24 cited

Expansion of the tetragonal magnetic phase with pressure in the iron-arsenide superconductor Ba{1-x}KxFe2As2

E. Hassinger, G. Gredat, F. Valade +11

In the temperature-concentration phase diagram of most iron-based superconductors, antiferromagnetic order is gradually suppressed to zero at a critical point, and a dome of superc…

cond-mat.supr-con2014★ 40 cited

Effects of electron irradiation on resistivity and London penetration depth of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ ( $x \leq$ 0.34) iron - pnictide superconductor

K. Cho, M. Konczykowski, J. Murphy +6

Irradiation with 2.5 MeV electrons at doses up to 5.2 $\times$ 10 $^{19}$ electrons/cm $^{2}$ was used to introduce point-like defects in single crystals of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ …

cond-mat.supr-con2014★ 21 cited

Evolution of London penetration depth with scattering in single crystals of K $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$

H. Kim, M. A. Tanatar, Yong Liu +5

London penetration depth, $λ (T)$ , was measured in single crystals of K $_{1 - x}$ Na $_{x}$ Fe $_{2}$ As $_{2}$ , $x$ =0 and 0.07, down to temperatures of 50~mK, $\sim T_{c} /50$ . Isovalent substituti…

cond-mat.supr-con2013★ 13 cited

Rutgers relation for the analysis of superfluid density in superconductors

H. Kim, V. G. Kogan, K. Cho +2

It is shown that the thermodynamic Rutgers relation for the second order phase transitions can be used for the analysis of the superfluid density data irrespective of complexities…

cond-mat.supr-con2012★ 43 cited

Type I Superconductivity in YbSb2 Single Crystals

Liang L. Zhao, Stefan Lausberg, H. Kim +4

We present evidence of type I superconductivity in YbSb2 single crystals, from DC and AC magnetization, heat capacity and resistivity measurements. The critical temperature and cri…

cond-mat.supr-con2011★ 39 cited

Doping - dependent superconducting gap anisotropy in the two-dimensional 10-3-8 pnictide Ca $_{10}$ (Pt $_{3}$ As $_{8}$ )[(Fe $_{1 - x}$ Pt $_{x}$ ) $_{2}$ As $_{2}$ ] $_{5}$

K. Cho, M. A. Tanatar, H. Kim +4

The characteristic features of Ca $_{10}$ (Pt $_{3}$ As $_{8}$ )[(Fe $_{1 - x}$ Pt $_{x}$ ) $_{2}$ As $_{2}$ ] $_{5}$ ("10-3-8") superconductor are relatively high anisotropy and a clear separation of supercon…

cond-mat.supr-con2011★ 19 cited

How robust the global measurements of London penetration depth are: the case of Fe(Te $_{1 - x}$ ,Se $_{x}$ )

K. Cho, H. Kim, M. A. Tanatar +4

We report tunnel diode resonator measurements of in-plane London penetration depth, $λ (T)$ , in optimally-doped single crystals of Fe(Te $_{0.58}$ Se $_{0.42}$ ) with $T_{c} \sim$ 14.8 K.…

cond-mat.supr-con2008★ 103 cited

The London penetration depth in single crystals of Ba(Fe_{1-x}Co_x)_2As_2 at various doping levels

R. T. Gordon, C. Martin, H. Kim +7

The London penetration depth $λ (T)$ has been measured in single crystals of Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$ using the tunnel diode resonator technique. The measured doping lev…

Expansion of the tetragonal magnetic phase with pressure in the iron-arsenide superconductor Ba{1-x}KxFe2As2

Effects of electron irradiation on resistivity and London penetration depth of Ba1−x​Kx​Fe2​As2​ (x≤ 0.34) iron - pnictide superconductor

Evolution of London penetration depth with scattering in single crystals of K1−x​Nax​Fe2​As2​