On the Ytterbium Valence and the Physical Properties in Selected Intermetallic Phases

S Engel, ECJ Gießelmann, MK Reimann… - ACS Organic & …, 2024 - ACS Publications
The present review summarizes important aspects of the crystal chemistry of ytterbium-
based intermetallic compounds along with a selection of their outstanding physical …

Temperature-Independent Fermi Surface in the Kondo Lattice

K Kummer, S Patil, A Chikina, M Güttler, M Höppner… - Physical Review X, 2015 - APS
Strongly correlated electron systems are one of the central topics in contemporary solid-state
physics. Prominent examples for such systems are Kondo lattices, ie, intermetallic materials …

Fermi-Surface Instability in the Heavy-Fermion Superconductor

Q Niu, G Knebel, D Braithwaite, D Aoki, G Lapertot… - Physical review …, 2020 - APS
Transport measurements are presented up to fields of 29 T in the recently discovered heavy-
fermion superconductor UTe 2 with magnetic field H applied along the easy magnetization a …

Interplay between Kondo Suppression and Lifshitz Transitions <?format ?>in at High Magnetic Fields

H Pfau, R Daou, S Lausberg, HR Naren, M Brando… - Physical review …, 2013 - APS
We investigate the magnetic field dependent thermopower, thermal conductivity, resistivity,
and<? format?> Hall effect in the heavy fermion metal YbRh 2 Si 2. In contrast to reports on …

Field-Induced Lifshitz Transition without Metamagnetism in

D Aoki, G Seyfarth, A Pourret, A Gourgout… - Physical Review Letters, 2016 - APS
We report high magnetic field measurements of magnetic torque, thermoelectric power,
magnetization, and the de Haas–van Alphen effect in CeIrIn 5 across 28 T, where a …

Collapse of ferromagnetism and Fermi surface instability near reentrant superconductivity of URhGe

A Gourgout, A Pourret, G Knebel, D Aoki, G Seyfarth… - Physical Review Letters, 2016 - APS
We present thermoelectric power and resistivity measurements in the ferromagnetic
superconductor URhGe for a magnetic field applied along the hard magnetization b axis of …

The utility of band theory in strongly correlated electron systems

G Zwicknagl - Reports on Progress in Physics, 2016 - iopscience.iop.org
This article attempts to review how band structure calculations can help to better understand
the intriguing behavior of materials with strongly correlated electrons. Prominent examples …

Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material

H Pfau, R Daou, S Friedemann, S Karbassi… - Physical review …, 2017 - APS
A ferromagnetic quantum critical point is thought not to exist in two-and three-dimensional
metallic systems yet is realized in the Kondo lattice compound YbNi 4 (P, As) 2, possibly due …

Lifshitz transitions in the ferromagnetic superconductor UCoGe

G Bastien, A Gourgout, D Aoki, A Pourret, I Sheikin… - Physical Review Letters, 2016 - APS
We present high field magnetoresistance, Hall effect and thermopower measurements in the
Ising-type ferromagnetic superconductor UCoGe. A magnetic field is applied along the easy …

Microstructuring YbRh2Si2 for resistance and noise measurements down to ultra-low temperatures

A Steppke, S Hamann, M König… - New Journal of …, 2022 - iopscience.iop.org
The discovery of superconductivity in the quantum critical Kondo-lattice system YbRh 2 Si 2
at an extremely low temperature of 2 mK has inspired efforts to perform high-resolution …