Valentin Leeb
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View article: Exploring <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>d</mml:mi></mml:math>-wave magnetism in cuprates from oxygen moments
Exploring -wave magnetism in cuprates from oxygen moments Open
The antiferromagnetic parent phase of high-Tc cuprates has been established as a Néel state of copper moments, but early work pointed out the important role of ligand oxygen orbitals. Using the three-orbital Emery model, we explore how, an…
View article: A Field Guide to Non‐Onsager Quantum Oscillations in Metals
A Field Guide to Non‐Onsager Quantum Oscillations in Metals Open
Quantum oscillation (QO) measurements constitute a powerful method to measure the Fermi surface (FS) properties of metals. The observation of QOs is usually taken as strong evidence for the existence of extremal cross‐sectional areas of th…
View article: Exploring d-Wave Magnetism in Cuprates from Oxygen Moments
Exploring d-Wave Magnetism in Cuprates from Oxygen Moments Open
The antiferromagnetic parent phase of high-T$_c$ cuprates has been established as a Néel state of copper moments, but early work pointed out the important role of ligand oxygen orbitals. Using the three-orbital Emery model, we explore how,…
View article: A Field Guide to non-Onsager Quantum Oscillations in Metals
A Field Guide to non-Onsager Quantum Oscillations in Metals Open
Quantum oscillation (QO) measurements constitute a powerful method to measure the Fermi surface (FS) properties of metals. The observation of QOs is usually taken as strong evidence for the existence of extremal cross-sectional areas of th…
View article: Numerical Study of Quantum Oscillations of the Quasiparticle Lifetime: Impurity Spectroscopy, Novel Electric Field and Strain Effects
Numerical Study of Quantum Oscillations of the Quasiparticle Lifetime: Impurity Spectroscopy, Novel Electric Field and Strain Effects Open
Quantum oscillation (QOs) measurements constitute one of the most powerful methods for determining the Fermi surface (FS) of metals, exploiting the famous Onsager relation between the FS area and the QO frequency. The recent observation of…
View article: Spontaneous formation of altermagnetism from orbital ordering
Spontaneous formation of altermagnetism from orbital ordering Open
Here, we upload the simulation code, the data, the code to generate the figures and the figures.
View article: Realizing Altermagnetism in Fermi-Hubbard Models with Ultracold Atoms
Realizing Altermagnetism in Fermi-Hubbard Models with Ultracold Atoms Open
Altermagnetism represents a type of collinear magnetism, that is in some aspects distinct from ferromagnetism and from conventional antiferromagnetism. In contrast to the latter, sublattices of opposite spin are related by spatial rotation…
View article: Spontaneous formation of altermagnetism from orbital ordering
Spontaneous formation of altermagnetism from orbital ordering Open
<p>Here, we upload the simulation code, the data, the code to generate the figures and the figures.</p>
View article: Interband scattering- and nematicity-induced quantum oscillation frequency in FeSe
Interband scattering- and nematicity-induced quantum oscillation frequency in FeSe Open
Understanding the nematic phase observed in the iron-chalcogenide materials is crucial for describing their superconducting pairing. Experiments on FeSe1−xSx showed the emergence of an additional Shubnikov–de Haas quantum oscillation frequ…
View article: Interband scattering- and nematicity-induced quantum oscillation frequency in FeSe
Interband scattering- and nematicity-induced quantum oscillation frequency in FeSe Open
Understanding the nematic phase observed in the iron-chalcogenide materials is crucial for describing their superconducting pairing. Experiments on FeSe$_{1-x}$S$_x$ showed that one of the slow Shubnikov--de Haas quantum oscillation freque…
View article: Theory of Difference Frequency Quantum Oscillations
Theory of Difference Frequency Quantum Oscillations Open
Quantum oscillations (QO) describe the periodic variation of physical observables as a function of inverse magnetic field in metals. The Onsager relation connects the basic QO frequencies with the extremal areas of closed Fermi surface poc…
View article: On the Theory of Difference Frequency Quantum Oscillations
On the Theory of Difference Frequency Quantum Oscillations Open
Quantum oscillations (QO) describe the periodic variation of physical observables as a function of inverse magnetic field in metals. The Onsager relation connects the basic QO frequencies with the extremal areas of closed Fermi surface poc…
View article: Quantum Oscillations of the Quasiparticle Lifetime in a Metal
Quantum Oscillations of the Quasiparticle Lifetime in a Metal Open
Following nearly a century of research, it remains a puzzle that the low-lying excitations of metals are remarkably well explained by effective single-particle theories of non-interacting bands. The abundance of interactions in real materi…
View article: Data for "Quantum Oscillations of the Quasiparticle Lifetime in a Metal"
Data for "Quantum Oscillations of the Quasiparticle Lifetime in a Metal" Open
Datasets shown in the article "Quantum Oscillations of the Quasiparticle Lifetime in a Metal" published in Nature.
View article: Quantum oscillations in a doped Mott insulator beyond Onsager's relation
Quantum oscillations in a doped Mott insulator beyond Onsager's relation Open
The kinetic energy of electrons in a magnetic field is quenched resulting in a discrete set of highly degenerate Landau levels (LL) which gives rise to fascinating phenomena like the de Haas-van Alphen effect (dHvAe) or the integer and fra…
View article: Quantum oscillations in a doped Mott insulator beyond Onsager's relation
Quantum oscillations in a doped Mott insulator beyond Onsager's relation Open
This repository contains datasets and simulation code used to create data and figures for the corresponding publication.
View article: Anomalous Quantum Oscillations in a Heterostructure of Graphene on a Proximate Quantum Spin Liquid
Anomalous Quantum Oscillations in a Heterostructure of Graphene on a Proximate Quantum Spin Liquid Open
The quasi-two-dimensional Mott insulator α-RuCl_{3} is proximate to the sought-after Kitaev quantum spin liquid (QSL). In a layer of α-RuCl_{3} on graphene, the dominant Kitaev exchange is further enhanced by strain. Recently, quantum osci…