Fig. 1: Orientation-dependent superconductivity at the LAO/KTO interfaces.
From: Orientation-dependent electronic structure in interfacial superconductors LaAlO3/KTaO3
a Sketch of the LAO/KTO interfaces with (111), (110), and (001) orientations. b Temperature-dependent sheet resistance (Rsheet) at the LAO/KTO interfaces of the three orientations. The \({T}_{{{{\rm{c}}}}}^{{{{\rm{middle}}}}}\) is determined by \({R}_{{{{\rm{sheet}}}}}({T}_{{{{\rm{c}}}}}^{{{{\rm{middle}}}}})=0.5\times {R}_{{{{\rm{sheet}}}}}\)(3 K). The lowest temperature in the measurements is 0.1 K. c Field-dependent Hall resistance (RHall) of the same set of samples at 9 K. d Two-dimensional carrier density (n2D) and carrier mobility (μ) determined at the same set of samples at 9 K. n2D is extracted from a linear fitting of the data in (c). μ is extracted from the data in (b) and (c), with μ−1 = Rsheetn2De, where e is the elementary charge.
