Fundamental basics on measurement instruments and techniques for ultrafast magnetism dynamics

Y Shin, JW Kim - Current Applied Physics, 2024 - Elsevier
In this article, for educational purposes aimed at beginners interested in the study of ultrafast
magnetism dynamics, we offer a comprehensive methodology that covers the foundational …

Gapless superconducting state and mirage gap in altermagnets

M Wei, L Xiang, F Xu, L Zhang, G Tang, J Wang - Physical Review B, 2024 - APS
The interplay between the spin-orbit interaction (SOI) and magnetism produces interesting
phenomena in superconductors. When a two-dimensional (2D) system with a strong SOI is …

Helicity-controlled switching of superconducting states by radiation pulse

MD Croitoru, B Lounis, AI Buzdin - Applied Physics Letters, 2023 - pubs.aip.org
We provide a theoretical analysis of the possibility of using circularly polarized radiation to
switch between two different quantum states of a superconducting nanoring subjected to the …

Zeptojoule detection of terahertz pulses by parametric frequency upconversion

DJ Jubgang Fandio, A Vishnuradhan, EK Yalavarthi… - Optics Letters, 2024 - opg.optica.org
We combine parametric frequency upconversion with the single-photon counting technology
to achieve terahertz (THz) detection sensitivity down to the zeptojoule (zJ) pulse energy …

Gapless fluctuations and exceptional points in semiconductor lasers

NH Kwong, ME Spotnitz, R Binder - Physical Review B, 2024 - APS
We analyze the spectrum of spatially uniform, single-particle fluctuation modes in the linear
electromagnetic response of a semiconductor laser. We show that if the decay rate of the …

Dynamics of Vortex Matter in 2D Gapless Superconducting Materials with Impurities

VD Pashkovskaia, ECS Duarte… - The Journal of …, 2024 - ACS Publications
The recent interest in using ultrafast single-photon detectors in research and commercial
applications has garnered significant attention from the scientific community. The dynamic …

Nucleation and Arrangement of Abrikosov Vortices in Hybrid Superconductor-Ferromagnetic Nanostructure

S Memarzadeh, M Gołębiewski, M Krawczyk… - arXiv preprint arXiv …, 2024 - arxiv.org
This study investigates the nucleation, dynamics, and stationary configurations of Abrikosov
vortices in hybrid superconductor-ferromagnetic nanostructures exposed to inhomogeneous …

Depth-resolved characterization of Meissner screening breakdown in surface treated niobium

E Thoeng, M Asaduzzaman, P Kolb, RML McFadden… - Scientific Reports, 2024 - nature.com
We report direct measurements of the magnetic field screening at the limits of the Meissner
phase for two superconducting niobium (Nb) samples. The samples are processed with two …

Holographic timelike superconductor

A Krikun, U Elinos - Journal of High Energy Physics, 2024 - Springer
A bstract We explore the state of matter characterized by the charged timelike vector order
parameter. We employ holographic duality in order to construct such a state and study its …

Ultra‐Low Threshold Resonance Switching by Terahertz Field Enhancement‐Induced Nanobridge

SH Lee, M Kim, Y Roh, MK Kim, M Seo - Advanced Science, 2024 - Wiley Online Library
Ongoing efforts spanning decades aim to enhance the efficiency of optical devices,
highlighting the need for a pioneering approach in the development of next‐generation …