S. Wiedmann
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View article: First observation of quantum oscillations by transport measurements in semi-destructive pulsed magnetic fields up to 125 T
First observation of quantum oscillations by transport measurements in semi-destructive pulsed magnetic fields up to 125 T Open
High magnetic fields have proven instrumental in exploring the physical properties of condensed matter, leading to groundbreaking discoveries, such as the quantum Hall effect in 2D heterostructures and quantum oscillations in cuprate super…
View article: Magnetostructural Transition in Spin Frustrated Halide Double Perovskites
Magnetostructural Transition in Spin Frustrated Halide Double Perovskites Open
Geometrical frustration in the face-centered-cubic (fcc) lattice presents a fundamental challenge in determining antiferromagnetic order, as the ground state is highly sensitive to subtle differences in competing magnetic interactions and …
View article: Long-range electron coherence in Kagome metals
Long-range electron coherence in Kagome metals Open
The wave-like nature of electrons lies at the core of quantum mechanics, distinguishing them from classical particles. Landmark experiments have revealed phase coherence of mobile electrons within solids, such as Aharonov-Bohm interference…
View article: Quantum Hall effect in a CVD-grown oxide
Quantum Hall effect in a CVD-grown oxide Open
Two-dimensional (2D) electron systems are promising for investigating correlated quantum phenomena. In particular, 2D oxides provide a platform that can host various quantum phases such as quantized Hall effect, superconductivity, or magne…
View article: From orbital to paramagnetic pair breaking in layered superconductor <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mn>2</mml:mn><mml:mi>H</mml:mi><mml:mtext>−</mml:mtext><mml:msub><mml:mi>NbS</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>
From orbital to paramagnetic pair breaking in layered superconductor Open
The superconducting transition-metal dichalcogenides 2H−NbSe2 and 2H−NbS2 are intensively studied on account of their unique electronic properties such as Ising superconductivity, found in multi- and monolayers, with upper critical fields …
View article: Strongly correlated Hofstadter subbands in minimally twisted bilayer graphene
Strongly correlated Hofstadter subbands in minimally twisted bilayer graphene Open
Contains fulltext : 312278.pdf (Publisher’s version ) (Open Access) Contains fulltext : 312278pre.pdf (Author’s version preprint ) (Open Access)
View article: Unraveling magneto-elastoresistance in the Dirac nodal-line semi-metal ZrSiSe
Unraveling magneto-elastoresistance in the Dirac nodal-line semi-metal ZrSiSe Open
Quantum materials are often characterized by a marked sensitivity to minute changes in their physical environment, a property that can lead to new functionalities and thereby, to novel applications. One such key property is the magneto-ela…
View article: Strongly correlated Hofstadter subbands in minimally twisted bilayer graphene
Strongly correlated Hofstadter subbands in minimally twisted bilayer graphene Open
Moiré superlattice in twisted bilayer graphene has been proven to be a versatile platform for exploring exotic quantum phases. Extensive investigations have been invoked focusing on the zero-magnetic-field phase diagram at the magic twist …
View article: Uniaxial strain effects on the Fermi surface and quantum mobility of the Dirac nodal-line semimetal ZrSiS
Uniaxial strain effects on the Fermi surface and quantum mobility of the Dirac nodal-line semimetal ZrSiS Open
ZrSiS has been identified as an exemplary Dirac nodal-line semimetal, in which the Dirac band crossings extend along a closed loop in momentum space. Recently, the topology of the Fermi surface of ZrSiS was uncovered in great detail by qua…
View article: Quantum Hall effect in a CVD-grown oxide
Quantum Hall effect in a CVD-grown oxide Open
Two-dimensional electron systems (2DES) are promising for investigating correlated quantum phenomena. In particular, 2D oxides provide a platform that can host various quantum phases such as quantized Hall effect, superconductivity, or mag…
View article: Quantum Hall effect in a CVD-grown oxide
Quantum Hall effect in a CVD-grown oxide Open
Two-dimensional electron systems (2DES) are promising for investigating correlated quantum phenomena. In particular, 2D oxides provide a platform that can host various quantum phases such as quantized Hall effect, superconductivity, or mag…
View article: Correction: van Delft et al. Two- and Three-Dimensional Superconducting Phases in the Weyl Semimetal TaP at Ambient Pressure. Crystals 2020, 10, 288
Correction: van Delft et al. Two- and Three-Dimensional Superconducting Phases in the Weyl Semimetal TaP at Ambient Pressure. Crystals 2020, 10, 288 Open
In the original publication [...]
View article: Temperature-Dependent Evolution of the Structural and Optoelectronic Properties of (NH<sub>4</sub>)<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub> Single Crystals
Temperature-Dependent Evolution of the Structural and Optoelectronic Properties of (NH<sub>4</sub>)<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub> Single Crystals Open
Hybrid metal halide perovskites are characterized by excellent photoelectric properties with great tunability. By manipulation of their chemical composition, their crystal structure can be altered at the atomic level, leading to confined s…
View article: Thermally stable quantum Hall effect in a gated ferroelectric-graphene heterostructure
Thermally stable quantum Hall effect in a gated ferroelectric-graphene heterostructure Open
The quantum Hall effect is widely used for the investigation of fundamental phenomena, ranging from topological phases to composite fermions. In particular, the discovery of a room temperature resistance quantum in graphene is significant …
View article: Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5
Distinct switching of chiral transport in the kagome metals KV3Sb5 and CsV3Sb5 Open
The kagome metals AV3Sb5 (A=K,Rb,Cs) present an ideal sandbox to study the interrelation between multiple coexisting correlated phases such as charge order and superconductivity. So far, no consensus on the microscopic nature of these stat…
View article: Distinct switching of chiral transport in the kagome metals KV$_3$Sb$_5$ and CsV$_3$Sb$_5$
Distinct switching of chiral transport in the kagome metals KV$_3$Sb$_5$ and CsV$_3$Sb$_5$ Open
The kagome metals AV$_3$Sb$_5$ (A=K,Rb,Cs) present an ideal sandbox to study the interrelation between multiple coexisting correlated phases such as charge order and superconductivity. So far, no consensus on the microscopic nature of thes…
View article: Room temperature quantum Hall effect in a gated ferroelectric-graphene heterostructure
Room temperature quantum Hall effect in a gated ferroelectric-graphene heterostructure Open
The quantum Hall effect is widely used for the investigation of fundamental phenomena, ranging from topological phases to composite fermions. In particular, the discovery of a room temperature resistance quantum in graphene is significant …
View article: The thickness dependence of quantum oscillations in ferromagnetic Weyl metal SrRuO3
The thickness dependence of quantum oscillations in ferromagnetic Weyl metal SrRuO3 Open
In a thin Weyl semimetal, a thickness dependent Weyl-orbit quantum oscillation was proposed to exist, originating from a nonlocal cyclotron orbit via electron tunnelings between top and bottom Fermi-arc surface states. Here, magneto-transp…
View article: Data repository for "Phonon-mediated room-temperature quantum Hall transport in graphene"
Data repository for "Phonon-mediated room-temperature quantum Hall transport in graphene" Open
This is the data presented in the manuscript "Phonon-mediated room-temperature quantum Hall transport in graphene", Nat Commun 14, 318 (2023). https://doi.org/10.1038/s41467-023-35986-3
View article: Data repository for "Phonon-mediated room-temperature quantum Hall transport in graphene"
Data repository for "Phonon-mediated room-temperature quantum Hall transport in graphene" Open
This is the data presented in the manuscript "Phonon-mediated room-temperature quantum Hall transport in graphene", Nat Commun 14, 318 (2023). https://doi.org/10.1038/s41467-023-35986-3
View article: Unconventional Fulde-Ferrell-Larkin-Ovchinnikov statein a two-dimensional Ising superconductor
Unconventional Fulde-Ferrell-Larkin-Ovchinnikov statein a two-dimensional Ising superconductor Open
The conventional Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state relies on the Zeeman effect of an external magnetic field to break time-reversal symmetry, forming a state of finite-momentum Cooper pairing. In superconductors with broken inv…
View article: Field-induced quasi-particle tunneling in the nodal-line semimetal HfSiS revealed by de Haas-van Alphen quantum oscillations
Field-induced quasi-particle tunneling in the nodal-line semimetal HfSiS revealed by de Haas-van Alphen quantum oscillations Open
We present a de Haas–van Alphen quantum oscillation study of the Dirac nodal-line semimetal HfSiS up to 32 T to unravel the structure of the high-frequency magnetic breakdown spectrum that was previously obscured in transport experiments. …
View article: Correlated Insulating Behavior in Infinite-Layer Nickelates
Correlated Insulating Behavior in Infinite-Layer Nickelates Open
Unlike their cuprate counterparts, the undoped nickelates are weak insulators without long-range antiferromagnetic order. Identifying the origin of this insulating behavior, found on both sides of the superconducting dome, is potentially a…
View article: Massive Magnetostriction of the Paramagnetic Insulator KEr(MoO<sub>4</sub>)<sub>2</sub> via a Single‐Ion Effect
Massive Magnetostriction of the Paramagnetic Insulator KEr(MoO<sub>4</sub>)<sub>2</sub> via a Single‐Ion Effect Open
The magnetostriction phenomenon, which exists in almost all magnetically ordered materials, is proved to have wide application potential in precision machinery, microdisplacement control, robotics, and other high‐tech fields. Understanding…