Abstract
We have studied the magnetic field dependence of transport and thermodynamic properties of the Kondo lattice compound YbNi4P2 for fields up to 30 T. On top of a continuous suppression of the Kondo effect with increasing field we identify nine Lifshitz transitions between 0.4 and 18 T. Using a detailed analysis of the measured transport coefficients, we were able to identify in most cases the type of Lifshitz transition being of neck or void type. This large number of Lifshitz transitions observed within this small energy window is unprecedented and is the result of the particular flat renormalized band structure with strong 4f-electron character shaped by the Kondo lattice effect which acts not just on a single, but on multiple bands.
Original language | English |
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Article number | 126402 |
Number of pages | 6 |
Journal | Physical Review Letters |
Volume | 119 |
DOIs | |
Publication status | Published - 21 Sep 2017 |
Keywords
- Fermi surface
- Kondo effect
- magnetotransport
- Thermopower