908 citations · 1.8k across the 13 of their papers we have counts for
13 papers
Coexistence of two- and three-dimensional Shubnikov-de Haas oscillations in Ar^+ -irradiated KTaO_3
S. Harashima, C. Bell, M. Kim +3
We report the electron doping in the surface vicinity of KTaO_3 by inducing oxygen-vacancies via Ar^+ -irradiation. The doped electrons have high mobility (> 10^4 cm^2/Vs) at low t…
Scanning SQUID Susceptometry of a paramagnetic superconductor
J. R. Kirtley, B. Kalisky, J. A. Bert +8
Scanning SQUID susceptometry images the local magnetization and susceptibility of a sample. By accurately modeling the SQUID signal we can determine the physical properties such as…
Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface
J. A. Bert, B. Kalisky, C. Bell +4
LaAlO3 and SrTiO3 are insulating, nonmagnetic oxides, yet the interface between them exhibits a two-dimensional electron system with high electron mobility,1 superconductivity at l…
Intrinsic spin-orbit coupling in superconducting δ-doped SrTiO3 heterostructures
M. Kim, Y. Kozuka, C. Bell +2
We report the violation of the Pauli limit due to intrinsic spin-orbit coupling in SrTiO3 heterostructures. Via selective doping down to a few nanometers, a two-dimensional superco…
Fermi surface and superconductivity in low-density high-mobility δ-doped SrTiO3
M. Kim, C. Bell, Y. Kozuka +3
The electronic structure of low-density n-type SrTiO3 delta-doped heterostructures is investigated by angular dependent Shubnikov-de Haas oscillations. In addition to a controllabl…
Enhancing the electron mobility via delta-doping in SrTiO3
Y. Kozuka, M. Kim, H. Ohta +3
We fabricated high-mobility δ-doped structures in SrTiO3 thin films in order to investigate the low temperature electronic transport properties of confined carriers in this system.…