Thre-Dimensional Fermi Surface of Overdoped La-based Cuprates
POSTER
Abstract
On this poster, we present a soft x-ray angle-resolved photoemission spectroscpoy study of the high-temperature superconductors La2-xSrxCuO4 (LSCO) and La1.8-xEu0.2SrxCuO4.Mapping in-plane and out-of-plane components of the Fermi surface reveals a distinct kz-dispersion, that was parametrizing a tight binding model [1]. In this fashion, we quantify the contribution of the van Hove singularity to specific heat found in over doped LSCO can't be assigned to the van Hove singularity and is theefore taken as evidence of quantum criticality.
[1] M. Horio, K. Hauser et al.,Phys. Rev. Lett. 121, 077004
[1] M. Horio, K. Hauser et al.,Phys. Rev. Lett. 121, 077004
Presenters
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Kevin Hauer
- Physics, University of Zurich