Dominant mobility modulation by the electric field effect at the LaAlO_3 / SrTiO_3 interface

C. Bell, S. Harashima, Y. Kozuka +4

Caviglia et al. [Nature (London) 456, 624 (2008)] have found that the superconducting LaAlO_3 / SrTiO_3 interface can be gate modulated. A central issue is to determine the princip…