Extended Data Fig. 10: Optical microscope image and additional electrical characterization for the 4 L device.
From: Two-dimensional heavy fermions in the van der Waals metal CeSiI
a, Optical microscope image of the 4 L device. b, Temperature dependence of the resistivity. The overall behavior is qualitatively similar to that of the bulk crystal, with a broad transition around 50 K and a sharp kink at 7.5 K resulting from the AFM ordering. Inset: R versus T2. The linear fit (red line) denotes a Fermi liquid state. c, Field dependence of the magnetoresistance at different temperatures with H || c-axis. d, Field dependence of the magnetoresistance of the 4 L and 15 L flakes.
