Emittance Minimization for Aberration Correction I: Aberration correction of an electron microscope without knowing the aberration coefficients

Kavli Affiliate: David A. Muller | First 5 Authors: Desheng Ma, Steven E. Zeltmann, Chenyu Zhang, Zhaslan Baraissov, Yu-Tsun Shao | Summary: Precise alignment of the electron beam is critical for successful application of scanning transmission electron microscopes (STEM) to understanding materials at atomic level. Despite the success of aberration correctors, aberration correction is still […]


Continue.. Emittance Minimization for Aberration Correction I: Aberration correction of an electron microscope without knowing the aberration coefficients

Emittance Minimization for Aberration Correction II: Physics-informed Bayesian Optimization of an Electron Microscope

Kavli Affiliate: David A. Muller | First 5 Authors: Desheng Ma, Steven E. Zeltmann, Chenyu Zhang, Zhaslan Baraissov, Yu-Tsun Shao | Summary: Aberration-corrected Scanning Transmission Electron Microscopy (STEM) has become an essential tool in understanding materials at the atomic scale. However, tuning the aberration corrector to produce a sub-{AA}ngstr"om probe is a complex and time-costly […]


Continue.. Emittance Minimization for Aberration Correction II: Physics-informed Bayesian Optimization of an Electron Microscope

Emittance Minimization for Aberration Correction II: Physics-informed Bayesian Optimization of an Electron Microscope

Kavli Affiliate: David A. Muller | First 5 Authors: Desheng Ma, Steven E. Zeltmann, Chenyu Zhang, Zhaslan Baraissov, Yu-Tsun Shao | Summary: Aberration-corrected Scanning Transmission Electron Microscopy (STEM) has become an essential tool in understanding materials at the atomic scale. However, tuning the aberration corrector to produce a sub-{AA}ngstr"om probe is a complex and time-costly […]


Continue.. Emittance Minimization for Aberration Correction II: Physics-informed Bayesian Optimization of an Electron Microscope

Direct Comparison of Magnetic Penetration Depth in Kagome Superconductors AV$_3$Sb$_5$ (A = Cs, K, Rb)

Kavli Affiliate: Katja C. Nowack | First 5 Authors: Austin Kaczmarek, Andrea Capa Salinas, Stephen D. Wilson, Katja C. Nowack, | Summary: We report measurements of the local temperature-dependent penetration depth, $lambda(T)$, in the Kagome superconductors AV$_3$Sb$_5$ (A = Cs, K, Rb) using scanning superconducting quantum interference device (SQUID) microscopy. Our results suggest that the […]


Continue.. Direct Comparison of Magnetic Penetration Depth in Kagome Superconductors AV$_3$Sb$_5$ (A = Cs, K, Rb)

Picosecond expansion in LaAlO3 resonantly driven by infrared-active phonons

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Jakob Gollwitzer, Jeffrey Z. Kaaret, Y. Eren Suyolcu, Guru Khalsa, Rylan C. Fernandes | Summary: We investigate the ultrafast structural dynamics of LaAlO3 thin films driven by short mid-infrared laser pulses at 20 THz. Time-resolved X-ray diffraction reveals an immediate lattice expansion and an acoustic breathing […]


Continue.. Picosecond expansion in LaAlO3 resonantly driven by infrared-active phonons

Picosecond expansion in LaAlO3 resonantly driven by infrared-active phonons

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Jakob Gollwitzer, Jeffrey Z. Kaaret, Y. Eren Suyolcu, Guru Khalsa, Rylan C. Fernandes | Summary: We investigate the ultrafast structural dynamics of LaAlO3 thin films driven by short mid-infrared laser pulses at 20 THz. Time-resolved X-ray diffraction reveals an immediate lattice expansion and an acoustic breathing […]


Continue.. Picosecond expansion in LaAlO3 resonantly driven by infrared-active phonons

Digital Transformation in Switzerland: The Current State and Expectations

Kavli Affiliate: Johannes Lehmann | First 5 Authors: Johannes Lehmann, Michael Beckmann, , , | Summary: This paper provides a comprehensive, descriptive overview of the current state of digital transformation in the Swiss economy and delineates areas that businesses should keep an eye on. Key findings illustrate that even established technologies are not universally adopted, […]


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Digital technologies and performance incentives: Evidence from businesses in the Swiss economy

Kavli Affiliate: Johannes Lehmann | First 5 Authors: Johannes Lehmann, Michael Beckmann, , , | Summary: Using novel survey data from Swiss firms, this paper empirically examines the relationship between the use of digital technologies and the prevalence of performance incentives. We argue that digital technologies tend to reduce the cost of organizational monitoring through […]


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Organizational culture and the usage of Industry 4.0 technologies: evidence from Swiss businesses

Kavli Affiliate: Johannes Lehmann | First 5 Authors: Simon Alexander Wiese, Johannes Lehmann, Michael Beckmann, , | Summary: Using novel establishment-level observational data from Switzerland, we empirically examine whether the usage of key technologies of Industry 4.0 distinguishes across firms with different types of organizational culture. Based on the Technology-Organization-Environment and the Competing Values framework, […]


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Floquet-Thermalization via Instantons near Dynamical Freezing

Kavli Affiliate: Debanjan Chowdhury | First 5 Authors: Rohit Mukherjee, Haoyu Guo, Debanjan Chowdhury, , | Summary: Periodically driven Floquet quantum many-body systems have revealed new insights into the rich interplay of thermalization, and growth of entanglement. The phenomenology of dynamical freezing, whereby a translationally invariant many-body system exhibits emergent conservation laws and a slow […]


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