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papers

Publications (8)

cond-mat.str-el2020

Correlated electron metal properties of the honeycomb ruthenate Na $_{2}$ RuO $_{3}$

L. S. I. Veiga, M. Etter, E. Cappelli +7

We report the synthesis and characterisation of polycrystalline Na $_{2}$ RuO $_{3}$ , a layered material in which the Ru $^{4 +}$ ( $4 d^{4}$ configuration) form a honeycomb lattice. The optima…

cond-mat.str-el2018

In-situ strain-tuning of the metal-insulator-transition of Ca $_{2}$ RuO $_{4}$ in angle-resolved photoemission experiments

S. RiccÃ², M. Kim, A. Tamai +12

We report the evolution of the $k$ -space electronic structure of lightly doped bulk Ca $_{2}$ RuO $_{4}$ with uniaxial strain. Using ultrathin plate-like crystals, we achieve strain l…

cond-mat.str-el2019

High-resolution photoemission on Sr2RuO4 reveals correlation-enhanced effective spin-orbit coupling and dominantly local self-energies

A. Tamai, M. Zingl, E. Rozbicki +17

We explore the interplay of electron-electron correlations and spin-orbit coupling in the model Fermi liquid Sr2RuO4 using laser-based angle-resolved photoemission spectroscopy. Ou…

cond-mat.str-el2025

Fermi surface and pseudogap in highly doped Sr $_{2}$ IrO $_{4}$

Y. Alexanian, A. de la Torre, S. McKweon Walker +18

The fate of the Fermi surface in bulk electron-doped Sr $_{2}$ IrO $_{4}$ remains elusive, as does the origin and extension of its pseudogap phase. Here, we use high-resolution angle-…

cond-mat.str-el2023

The fate of quasiparticles at high-temperature

A. Hunter, S. Beck, E. Cappelli +17

We study the temperature evolution of quasiparticles in the correlated metal Sr $_{2}$ RuO $_{4}$ . Our angle resolved photoemission data show that quasiparticles persist up to temperature…

cond-mat.str-el2025

Non-Fermi liquid quasiparticles in strain-tuned Sr2RuO4

A. Hunter, C. Putzke, F. B. Kugler +23

Interacting electrons can form metallic states beyond the Fermi liquid paradigm, a conceptual frontier of many-body physics mainly explored via bulk thermodynamics and transport. I…

cond-mat.str-el2022

Electronic structure of the highly conductive perovskite oxide SrMoO $_{3}$

E. Cappelli, A. Hampel, A. Chikina +12

We use angle-resolved photoemission to map the Fermi surface and quasiparticle dispersion of bulk-like thin films of SrMoO $_{3}$ grown by pulsed laser deposition. The electronic self…

cond-mat.mtrl-sci2019

Bulk and surface electronic structure of the dual-topology semimetal Pt2HgSe3

I. Cucchi, A. Marrazzo, E. Cappelli +12

We report high-resolution angle resolved photoemission measurements on single crystals of Pt2HgSe3 grown by high-pressure synthesis. Our data reveal a gapped Dirac nodal line whose…