Eun-Mi Choi

TL;DR: High-quality caxis–oriented epitaxial MgB2 thin films fabricated using a pulsed laser deposition technique suggest that this compound has potential for electronic device applications, such as microwave devices and superconducting quantum interference devices.

TL;DR: The study of the anisotropic superconductor MgB2 using a combination of scanning tunneling microscopy and spectroscopy reveals two distinct energy gaps with both gaps vanishing at the bulk T(c) with the data confirming the importance of Fermi-surface sheet dependent superconductivity proposed in the multigap model.

TL;DR: In high-quality c-axis-oriented MgB2 thin films, high critical current densities of approximately 16 MA/cm(2) at 15 K under self-fields comparable to those of cuprate high-temperature superconductors are observed, suggesting that this compound would be a very promising candidate for practical applications at high temperature and lower power consumption.

TL;DR: In this paper, it was shown that below 10 K the penetration of magnetic flux in MgB2 films is dominated by dendritic structures abruptly formed in response to an applied field, and that these structures show a temperature-dependent morphology ranging from quasi-1D at 4 K to large tree-like structures near 10 K.

TL;DR: In this paper, magneto-opitcal studies of a c-oriented epitaxial MgB2 film show that below 10 K the global penetration of vortices is dominated by complex dendritic structures abruptly entering the film.