98%
921
2 minutes
20
We present a conceptually simple and technically straightforward method for calculating photoelectron wave functions that is easily integrable with standard wave-function-based density-functional-theory packages. Our method is based on the Lippmann-Schwinger equation, naturally incorporating the boundary condition that the final photoelectron state must satisfy. The calculated results are in good agreement with the measured photon-energy and polarization dependence of the angle-resolved photoemission spectroscopy (ARPES) of graphene, the photon-energy-dependent evolution of the so-called dark corridor arising from the pseudospin, and WSe_{2}, the circular dichroism reflecting the hidden orbital polarization. Our Letter opens doors to do-it-yourself simulations of ARPES with standard density-functional-theory packages, of crucial importance in the era of "quantum materials," whose key experimental tool is ARPES.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1103/gwmm-6l57 | DOI Listing |
ACS Nano
September 2025
IMEC, Kapeldreef 75, 3001 Leuven, Belgium.
Heavy-metal-free III-V semiconductor-based colloidal quantum dots (CQDs), such as InAs, are promising candidates for near- and short-wave infrared detection. However, up-to-date research efforts remain mainly limited to wavelengths below 1100 nm due to challenges in synthesis, junction formation, and passivation for large diameter InAs quantum dots. Systematic investigations into device design, reverse dark current mechanisms, and trap distributions in larger InAs quantum dots remain limited.
View Article and Find Full Text PDFBiomimetics (Basel)
August 2025
Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.
Titanium-aluminum-vanadium (Ti6Al4V) is a material chosen for spine, orthopedic, and dental implants due to its combination of desirable mechanical and biological properties. Lasers have been used to modify metal surfaces, enabling the generation of a surface on Ti6Al4V with distinct micro- and nano-scale structures. Studies indicate that topography with micro/nano features of osteoclast resorption pits causes bone marrow stromal cells (MSCs) and osteoprogenitor cells to favor differentiation into an osteoblastic phenotype.
View Article and Find Full Text PDFACS Nano
September 2025
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, China.
The complex interplay between electronic and lattice degrees of freedom underlies a rich variety of emergent phenomena in quantum materials, particularly charge density waves (CDWs). Understanding the distinct roles of electron carriers and structural order in CDW formation is crucial for elucidating the underlying mechanisms and enabling control over material properties. The intertwined effects of charge doping and structural periodicity make it challenging to isolate the individual contributions to lattice modulations.
View Article and Find Full Text PDFPhys Rev Lett
August 2025
Seoul National University, Seoul National University, Department of Physics and Astronomy, Seoul 08826, Korea and Center for Theoretical Physics, Seoul 08826, Korea.
We present a conceptually simple and technically straightforward method for calculating photoelectron wave functions that is easily integrable with standard wave-function-based density-functional-theory packages. Our method is based on the Lippmann-Schwinger equation, naturally incorporating the boundary condition that the final photoelectron state must satisfy. The calculated results are in good agreement with the measured photon-energy and polarization dependence of the angle-resolved photoemission spectroscopy (ARPES) of graphene, the photon-energy-dependent evolution of the so-called dark corridor arising from the pseudospin, and WSe_{2}, the circular dichroism reflecting the hidden orbital polarization.
View Article and Find Full Text PDFThe tunneling of a particle through a barrier is one of the most fundamental and ubiquitous quantum processes. The rapid progress in strong-field physics enables us to resolve the laser-induced tunneling ionization from atoms and molecules at a more precise level. Here we employ a temporal double-slit interferometer to probe the electron wave packet generated from the strong-field-induced tunneling of a molecule.
View Article and Find Full Text PDF