Abstract A long-standing challenge in ultrafast magnetism and functional materials research, in general, has been the generation of a universal, ultrafast stimulus able to switch between stable magnetic states. Solving this problem would open up many new opportunities for fundamental studies, potentially impacting future data storage technologies. Ideally, step-like magnetic field transients with infinitely fast rise time would serve this purpose. Here we develop a new approach to generate ultrafast magnetic field…

Photoexcited K$_3$C$_{60}$ displays several properties reminiscent of equilibrium superconductivity, including transient optical spectra, pressure dependence, and I-V characteristics. However, these observations do not decisively establish non-equilibrium superconductivity, which would be conclusively evidenced by transient Meissner diamagnetism, as shown recently in driven YBa$_2$Cu$_3$O$_{6.48}$. Here, we search for transient magnetic field expulsion in K$_3$C$_{60}$ by measuring Faraday rotation in a magneto-op…

Photoexcited <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"> <a:mrow> <a:msub> <a:mi mathvariant="normal">K</a:mi> <a:mn>3</a:mn> </a:msub> <a:msub> <a:mi mathvariant="normal">C</a:mi> <a:mn>60</a:mn> </a:msub> </a:mrow> </a:math> displays several properties reminiscent of equilibrium superconductivity, including transient optical spectra, pressure dependence, and <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"> <d:mrow> <d:mi>I</d:mi> </d:mrow> </d:math> – <e:math xmlns:e="http://www.w3.org/1998/Math/M…

Abstract Coherent optical driving in quantum solids is emerging as a research frontier, with many reports of interesting non-equilibrium quantum phases 1–4 and transient photo-induced functional phenomena such as ferroelectricity 5,6 , magnetism 7–10 and superconductivity 11–14 . In high-temperature cuprate superconductors, coherent driving of certain phonon modes has resulted in a transient state with superconducting-like optical properties, observed far above their transition temperature T c and throughout the p…

This dataset includes the raw data for the measurements presented in the Arxiv manuscript "Large Area Optical Frequency Detectors for Single-Shot Phase Readout"(arxiv:2306.01621). The analysis scripts are available in the following github repository, https://github.com/qnngroup/Large-Area-Optical-Frequency-7<br>Detectors-for-Single-Shot-Phase-Readout .