activity
19992002
most citedMgB2 superconducting thin films with a transition temperature of 39 Kelvin

459 citations · 2.2k across the 29 of their papers we have counts for

collaborators

29 papers

cond-mat.supr-con2002★ 35 cited

The pair-breaking critical current density of magnesium diboride

Milind N. Kunchur, Sung-Ik Lee, W. N. Kang

The pair-breaking critical current density j_{d} of magnesium diboride was determined over its entire temperature range by a pulsed dc transport measurement. At fixed low values of…

cond-mat.supr-con2002★ 61 cited

Growth of superconducting MgB2 thin films via postannealing techniques

W. N. Kang, Eun-Mi Choi, Hyeong-Jin Kim +2

We report the effect of annealing on the superconductivity of MgB2 thin films as functions of the postannealing temperature in the range from 700 C to 950 C and of the postannealin…

cond-mat.supr-con2002★ 14 cited

Coherence lengths and anisotropy in MgB2 superconductor

A. Dulcic, M. Pozek, D. Paar +4

Field and temperature microwave measurements have been carried out on MgB2 thin film grown on Al2O3 substrate. The analysis reveals the mean field coherence length xi_{MF} in the m…

cond-mat.supr-con2002★ 56 cited

Local threshold field for dendritic instability in superconducting MgB2 films

F. L. Barkov, D. V. Shantsev, T. H. Johansen +5

Using magneto-optical imaging the phenomenon of dendritic flux penetration in superconducting films was studied. Flux dendrites were abruptly formed in a 300 nm thick film of MgB2…

cond-mat.str-el2002★ 12 cited

Complicated nature of the gap in MgB2: magnetic field-dependent optical studies

H. J. Lee, J. H. Jung, K. W. Kim +7

We investigated the magnetic field (H)-dependent optical conductivity spectra of MgB2 thin film in the far-infrared region. The H-dependences can be explained by the increase of no…

cond-mat.supr-con2002★ 351 cited

Two-Band Superconductivity in MgB2

M. Iavarone, G. Karapetrov, A. E. Koshelev +3

The study of the anisotropic superconductor MgB2 using a combination of scanning tunneling microscopy and spectroscopy reveals two distinct energy gaps at Delta1=2.3 meV and Delta2…