Fermi surface of CeTe

Abstract CeTe is a typical Kondo lattice compound with antiferromagnetic ordering at 2 K. We have succeeded in observing the de Haas–van Alphen (dHvA) effect of CeTe. The dHvA frequencies denoted by α can be explained by the three equivalent ellipsoidal Fermi surfaces at the X points of the Brilluoin zone. We have discovered the splitting of the α branch into the α 1 and α 2 branches in most of the field directions, which is attributed to splitting of the up and down Fermi surfaces. The relatively large difference between the effective masses of α 1 is α 2 is observed for the field along the [1 1 1] direction.