A5043677505- 2D Materials and Applications
- Physics of Superconductivity and Magnetism
- Quantum and electron transport phenomena
- Iron-based superconductors research
- Topological Materials and Phenomena
- Advanced Condensed Matter Physics
- Magnetic properties of thin films
- Quantum Dots Synthesis And Properties
- Multiferroics and related materials
- Magnetic and transport properties of perovskites and related materials
- Plasma and Flow Control in Aerodynamics
- Context-Aware Activity Recognition Systems
- MXene and MAX Phase Materials
- EEG and Brain-Computer Interfaces
- Electrohydrodynamics and Fluid Dynamics
- Molecular Junctions and Nanostructures
- Theoretical and Computational Physics
- Graphene research and applications
- Fluid Dynamics and Turbulent Flows
- Non-Invasive Vital Sign Monitoring
- Electronic and Structural Properties of Oxides
- Chalcogenide Semiconductor Thin Films
Hebrew University of Jerusalem
2022-2025
Ruppin Academic Center
2024
Grace (United States)
2024
The interplay between magnetism and superconductivity can lead to unconventional proximity Josephson effects. A related phenomenon that has recently attracted considerable attention is the superconducting diode effect, in which a nonreciprocal critical current emerges. Although diodes based on superconductor/ferromagnet (S/F) bilayers were demonstrated more than decade ago, precise underlying mechanism remains unclear. While not formally linked this Fulde-Ferrell-Larkin-Ovchinikov (FFLO)...
Abstract Recent advancements in 2D materials have revealed the potential of van der Waals magnets, and specifically their magnetic anisotropy that allows applications down to limit. Among these materials, CrSBr has emerged as a promising candidate, because its intriguing electronic properties appeal for both fundamental applied research spintronics or magnonics. In this work, nano‐SQUID‐on‐tip (SOT) microscopy is used obtain direct imaging flakes with thicknesses ranging from monolayer ( N =...
Abstract The coexistence of multiple types orders is a common thread in condensed matter physics and unconventional superconductors. nature superconducting may be unveiled by analyzing local perturbations such as vortices. For thin films, the vortex magnetic profile characterized Pearl-length $$\Lambda$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>Λ</mml:mi> </mml:math> , which inversely proportional to 2D superfluid density; hence, normally, also film thickness, $$d$$...
CrGeTe3 (CGT) is a semiconducting vdW ferromagnet shown to possess magnetism down two-layer thick sample. Although CGT one of the leading candidates for spintronics devices, comprehensive analysis thickness dependent magnetization currently lacking. In this work, we employ scanning SQUID-on-tip (SOT) microscopy resolve magnetic properties exfoliated flakes at 4.2 K. Combining transport measurements CGT/NbSe2 samples with SOT images, present texture and hysteretic CGT, thereby matching global...
Exchange bias is a phenomenon critical to solid-state technologies that require spin valves or nonvolatile magnetic memory. The usually studied in the context of interfaces between antiferromagnets and ferromagnets, where exchange field former acts as means pin polarization latter. In present study, we report an unusual instance this topological Weyl semimetal ${\mathrm{Co}}_{3}{\mathrm{Sn}}_{2}{\mathrm{S}}_{2}$, associated with domain walls suffice entire ferromagnetic bulk. Remarkably, our...
The positions of Abrikosov vortices have long been considered as means to encode classical information. Although it is possible move individual using local probes, the challenge scalable on-chip vortex-control remains outstanding, especially when considering demands controlling multiple vortices. Realization vortex logic requires shuttle reliably between engineered pinning potentials, while concomitantly keeping all other fixed. We demonstrate such capabilities Nb loops patterned below a...
The synthesis of two-dimensional van der Waals magnets has paved the way for both technological applications and fundamental research on magnetism confined to ultra-small length scales. Edge magnetic moments in ferromagnets are expected be less magnetized than sample interior because reduced amount neighboring ferromagnetic spins at edge. We recently demonstrated that CrGeTe3 (CGT) flakes thinner 10 nm hard ferromagnets; i.e., they exhibit an open hysteresis loop. In contrast, thicker zero...
The coercivity of single-domain magnetic nanoparticles typically decreases with the nanoparticle size and reaches zero when thermal fluctuations overcome anisotropy. Here, we used SQUID-on-tip microscopy to investigate square-shaped CrGeTe
Abstract Chiral imprinting is demonstrated in metals, semiconductors, and oxides. In these cases, the mixing of chiral molecules with studied material changes structure hybrid system, resulting new physical properties. this work, chirality imprinted on lead (Pb) that a conventional singlet s‐wave superconductor. The exhibits an increase critical field ( H C ) wider temperature phase transition under in‐plane magnetic fields. These results demonstrate method for locally altering...
Nano-patterned magnetic materials have opened new venues on the investigation of strongly correlated phenomena including artificial spin-ice systems, geometric frustration, monopoles, for technologically important applications such as reconfigurable ferromagnetism. With advent atomically thin two-dimensional (2D) van der Waals (vdW) magnets a pertinent question is whether compounds could make their way into this realm where interactions can be tailored so that unconventional states matter...
Millions of people around the globe are impacted by falls annually, making it a significant public health concern. Falls particularly challenging to detect in real time, as they often occur suddenly and with little warning, highlighting need for innovative detection methods. This study aimed assist advancement an accurate efficient fall system using electroencephalogram (EEG) data recognize reaction postural disturbance. We employed state-space-based identification approach extract features...
The interplay between magnetism and superconductivity can lead to unconventional proximity Josephson effects. A related phenomenon that has recently attracted considerable attention is the superconducting diode effect, in which a non-reciprocal critical current emerges. Although diodes based on superconducting/ferromagnetic (S/F) bilayers were demonstrated more than decade ago, precise underlying mechanism remains unclear. While not formally linked this Fulde-Ferrell-Larkin-Ovchinikov (FFLO)...
Scanning SQUID-on-tip Microscopy Using magnetic imaging of CrSBr, a van der Waals material 2D antiferromagnet, Avia Noah, Samuel Mañas-Valero, Elton J. G. Santos, Yonathan Anahory, and co-workers demonstrate that the anisotropy moment density are nearly preserved down to monolayer. This image reveals formation Néel domain walls shows remarkable stability even for monolayer exposed air.
Abrikosov Vortices have long been considered as means to encode classical information in low-temperature logic circuits (1) and memory devices (2-4). Although it is possible control individual vortices using local probes (5-11), scalability towards the of multiple remains challenging. Vortex require shuttle selected reliably over distances between engineered pinning potentials. Concomitantly, all other should fixed their precise locations. Here we demonstrate such capabilities Nb loops...