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VOLUME 40 (1984) | ISSUE 1 | PAGE 25
Lifshitz singularities in the thermo-emf in n-Bi0.9Sb0.1 single crystals due to a 2.5-order transition induced by anisotropic strain
The thermo-emf induced by anisotropic strain at helium temperatures was measured using single-crystal specimens of «-Bi0 9 Sb0л. As a result of this strain, all electrons on the Fermi surface (FS) flow over into a single ellipsoid. The topological transition to a single-ellipsoidal FS was monitored by observing the quantum oscillations of the thermo-emf. A characteristic peak is observed in the thermo-emf for strains corresponding to a change in the topology.