Magnetic field-tuned Fermi liquid in a Kondo insulator
Magnetic field-tuned Fermi liquid in a Kondo insulator
Kondo insulators are expected to transform into metals under a sufficiently strong magnetic field. The closure of the insulating gap stems from the coupling of a magnetic field to the electron spin, yet the required strength of the magnetic field-typically of order 100 T-means that very little is known about …