Elke Scheer
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View article: Imaging of Gate-Controlled Suppression of Superconductivity via the Meissner Effect
Imaging of Gate-Controlled Suppression of Superconductivity via the Meissner Effect Open
It was recently discovered that supercurrents flowing through thin superconducting nanowires can be quenched by a gate voltage. This gate control of supercurrents, known as the GCS effect, could enable superconducting transistor logic. Her…
View article: Sideband attraction via internal resonance in a multimode membrane as a mechanism for frequency combs
Sideband attraction via internal resonance in a multimode membrane as a mechanism for frequency combs Open
We explore self-induced parametric coupling between a driven (low frequency) and an undriven (high frequency) mode, also called internal resonances, in a membrane micromechanical system. Specifically, we focus on the formation of a limit c…
View article: Sideband attraction via internal resonance in a multimode membrane as a mechanism for frequency combs
Sideband attraction via internal resonance in a multimode membrane as a mechanism for frequency combs Open
We explore self-induced parametric coupling between a driven (low frequency) and an undriven (high frequency) mode, also called internal resonances, in a membrane micromechanical system. Specifically, we focus on the formation of a limit c…
View article: Electronic and Thermoelectric Properties of Molecular Junctions Incorporating Organometallic Complexes: Implications for Thermoelectric Energy Conversion
Electronic and Thermoelectric Properties of Molecular Junctions Incorporating Organometallic Complexes: Implications for Thermoelectric Energy Conversion Open
International audience
View article: Silicon-based MEMS/NEMS empowered by graphene: a scheme for large tunability and functionality
Silicon-based MEMS/NEMS empowered by graphene: a scheme for large tunability and functionality Open
Integration of graphene in silicon-based micro-/nanoelectromechanical systems (MEMS/NEMS) marries the robustness of silicon-based materials with the exceptional physical properties of graphene, drastically enhancing the system’s regulation…
View article: Superconducting non-volatile memory based on charge trapping and gate-controlled superconductivity
Superconducting non-volatile memory based on charge trapping and gate-controlled superconductivity Open
Superconducting electronics represents a promising technology, offering not only efficient integration with quantum computing systems, but also the potential for significant power reduction in high-performance computing. Nonetheless, the l…
View article: Gate control of superconducting current: Mechanisms, parameters, and technological potential
Gate control of superconducting current: Mechanisms, parameters, and technological potential Open
In conventional metal-oxide semiconductor (CMOS) electronics, the logic state of a device is set by a gate voltage (VG). The superconducting equivalent of such effect had remained unknown until it was recently shown that a VG can tune the …
View article: Tutorial: From Topology to Hall Effects—Implications of Berry Phase Physics
Tutorial: From Topology to Hall Effects—Implications of Berry Phase Physics Open
The Berry phase is a fundamental concept in quantum mechanics with profound implications for understanding topological properties of quantum systems. This tutorial provides a comprehensive introduction to the Berry phase, beginning with th…
View article: Singlet-Triplet Kondo Effect in Blatter Radical Molecular Junctions: Zero-bias Anomalies and Magnetoresistance
Singlet-Triplet Kondo Effect in Blatter Radical Molecular Junctions: Zero-bias Anomalies and Magnetoresistance Open
The Blatter radical has been suggested as a building block in future molecular spintronic devices due to its radical character and expected long-spin lifetime. However, whether and how the radical character manifests itself in the charge t…
View article: Micromagnetic simulation of the magnetization-controlled critical current in a S–(S/F)–S superconducting switch
Micromagnetic simulation of the magnetization-controlled critical current in a S–(S/F)–S superconducting switch Open
In this Letter, we provide three dimensional micromagnetic simulations describing the nonvolatile magnetization control of the critical current of a superconductor–proximity-modified superconductor–superconductor junction by initializing a…
View article: High-Performance Gate-Controlled Superconducting Switches: Large Output Voltage and Reproducibility
High-Performance Gate-Controlled Superconducting Switches: Large Output Voltage and Reproducibility Open
Logic circuits consist of devices that can be controlled between two distinct states. The recent demonstration that a superconducting current flowing in a constriction can be controlled via a gate voltage (VG)─gate-controlled supercurrent …
View article: A Nanomechanical Transducer for Remote Signal Transmission onto the Tympanic Membrane–Playing Music on a Different Drum
A Nanomechanical Transducer for Remote Signal Transmission onto the Tympanic Membrane–Playing Music on a Different Drum Open
The combination of piezoelectric ceramics with silicon nanomembranes can provide a unique combination of electronic and mechanical functionality. For example, an integrated remotely accessible sensor/actuator can serve as a sound transduce…
View article: Tutorial: From Topology to Hall Effects -- Implications of Berry Phase Physics
Tutorial: From Topology to Hall Effects -- Implications of Berry Phase Physics Open
The Berry phase is a fundamental concept in quantum mechanics with profound implications for understanding topological properties of quantum systems. This tutorial provides a comprehensive introduction to the Berry phase, beginning with th…
View article: Tuning and Modulation of the Photoinduced Current by Rectification of Surface Plasmons in Metal–Molecule–Nanoparticle–ITO Composite Junctions
Tuning and Modulation of the Photoinduced Current by Rectification of Surface Plasmons in Metal–Molecule–Nanoparticle–ITO Composite Junctions Open
Au nanoparticles (AuNPs) are prime candidates to build up device components for light-harvesting and photon–electron conversion. AuNPs respond to light irradiation by creating localized surface plasmons (LSPs), coupling with neighboring Au…
View article: High-performance gate-controlled superconducting switches: large output voltage and reproducibility
High-performance gate-controlled superconducting switches: large output voltage and reproducibility Open
Logic circuits consist of devices that can be controlled between two distinct states. The recent demonstration that a superconducting current flowing in a constriction can be controlled via a gate voltage ($V_G$) - can lead to superconduct…
View article: Demonstration of high-impedance superconducting NbRe Dayem bridges
Demonstration of high-impedance superconducting NbRe Dayem bridges Open
Here, we demonstrate superconducting Dayem-bridge weak-links made of different stoichiometric compositions of NbRe. Our devices possess a relatively high critical temperature, normal-state resistance, and kinetic inductance. In particular,…
View article: Gate-controlled supercurrent effect in dry-etched Dayem bridges of non-centrosymmetric niobium rhenium
Gate-controlled supercurrent effect in dry-etched Dayem bridges of non-centrosymmetric niobium rhenium Open
The application of a gate voltage to control the superconducting current flowing through a nanoscale superconducting constriction, named as gate-controlled supercurrent (GCS), has raised great interest for fundamental and technological rea…
View article: Magnetization control of the critical current in a S-(S/F)-S superconducting switch
Magnetization control of the critical current in a S-(S/F)-S superconducting switch Open
We show the control of the critical current Ic of a superconductor–superconductor/ferromagnet–superconductor [S-(S/F)-S] type switch by the magnetization state of the F. The inverse proximity effect of a S/F bilayer is used to define the w…
View article: Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires
Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires Open
We present a novel method combining anodic aluminum oxide template synthesis and nanolithography to selectively deposit vertically patterned magnetic nanowires on a Si substrate. With this approach we fabricated three-dimensional nanowire-…
View article: Molecular dimer junctions forming: Role of disulfide bonds and electrode‐compression‐time
Molecular dimer junctions forming: Role of disulfide bonds and electrode‐compression‐time Open
Thanks to their excellent bond strength, phenyl‐based molecules with thiol anchoring groups are extensively employed to form stable single‐molecule junctions. However, two critical questions are still not answered which seriously hinder hi…
View article: Signature of long-ranged spin triplets across a two-dimensional superconductor/helimagnet van der Waals interface
Signature of long-ranged spin triplets across a two-dimensional superconductor/helimagnet van der Waals interface Open
The combination of a superconductor with a magnetically inhomogeneous material has been established as an efficient mechanism for the generation of long-ranged spin-polarized (spin-triplet) Cooper pairs. Evidence for this mechanism, howeve…
View article: Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations
Single-crystalline YIG flakes with uniaxial in-plane anisotropy and diverse crystallographic orientations Open
We study sub-micron Y3Fe5O12 (YIG) flakes that we produce via mechanical cleaving and exfoliation of YIG single crystals. By characterizing their structural and magnetic properties, we find that these YIG flakes have surfaces oriented alon…
View article: Unveiling unconventional magnetism at the surface of Sr$_2$RuO$_4$
Unveiling unconventional magnetism at the surface of Sr$_2$RuO$_4$ Open
Materials with strongly correlated electrons exhibit physical properties that are often difficult to predict as they result from the interactions of large numbers of electrons combined with several quantum degrees of freedom. The layered o…
View article: In Situ Reconnection of Nanoelectrodes Over 20 nm Gaps on Polyimide Substrate
In Situ Reconnection of Nanoelectrodes Over 20 nm Gaps on Polyimide Substrate Open
Nanoelectrode In Situ Reconnection The current densities in electronic circuitry are approaching the electromigration threshold, which may result in the fracture of the circuits. Flexible electronic devices might also be prone to fracture …
View article: Gate-controlled supercurrent effect in dry-etched Dayem bridges of non-centrosymmetric niobium rhenium
Gate-controlled supercurrent effect in dry-etched Dayem bridges of non-centrosymmetric niobium rhenium Open
The application of a gate voltage to control the superconducting current flowing through a nanoscale superconducting constriction, named as gate-controlled supercurrent (GCS), has raised great interest for fundamental and technological rea…
View article: Demonstration of high-impedance superconducting NbRe Dayem bridges
Demonstration of high-impedance superconducting NbRe Dayem bridges Open
Here we demonstrate superconducting Dayem-bridge weak-links made of different stoichiometric compositions of NbRe. Our devices possess a relatively high critical temperature, normal-state resistance, and kinetic inductance. In particular, …