Results 81 to 90 of about 2,850,549 (366)

Electronic properties of structural twin and antiphase boundaries in materials with strong electron-lattice couplings [PDF]

arXiv, 2003
Using a symmetry-based atomic scale theory of lattice distortions, we demonstrate that elastic textures, such as twin and antiphase boundaries, can generate intricate electronic inhomogeneities in materials with strong electron-lattice coupling, as observed in perovskite manganites and other functional materials.
arxiv  

Assessing proton plans with three different beam delivery systems versus photon plans for head and neck tumors

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To compare plan quality among photon volumetric modulated arc therapy (VMAT) and intensity‐modulated proton therapy (IMPT) with robustness using three different proton beam delivery systems with various spot size (σ) ranges: cyclotron‐generated proton beams (CPBs) (σ: 2.7–7.0 mm), linear accelerator proton beams (LPBs) (σ: 2.9–5.5 mm),
Tara Gray, Chieh‐Wen Liu, Saeed Ahmed, Anna Maria Kolano, Jeremy Donaghue, Shlomo Koyfman, Neil Woody, Shauna R. Campbell, Jonathan B. Farr, Ping Xia   +9 more
wiley   +1 more source

Progress on AlGaN-based solar-blind ultraviolet photodetectors and focal plane arrays

Light: Science & Applications, 2021
Solar-blind ultraviolet (UV) photodetectors (PDs) have attracted tremendous attention in the environmental, industrial, military, and biological fields. As a representative III-nitride material, AlGaN alloys have broad development prospects in the field ...
Qing Cai, Haifan You, Hui Guo, Jin Wang, Bin Liu, Zili Xie, Dunjun Chen, Hai Lu, Youdou Zheng, Rong Zhang   +9 more
doaj   +1 more source

Adiabatic and Nonadiabatic Electronics of Materials [PDF]

arXiv, 2006
Physical foundations of adiabatic and nonadiabatic electronics of materials are considered in this article. It is shown the limitation of adiabatic approach to electronics of materials. It is shown that nonadiabatic physical properties of solid materials (hyperconductivity, superconductivity, thermal superconductivity and phonon drag of electrons at ...
arxiv  

Self-consistent electron lifetimes for electron-phonon scattering [PDF]

Phys. Rev. B 110, L121106 (2024)
Acoustic phonons in piezoelectric materials strongly couple to electrons through a macroscopic electric field. We show that this coupling leads to a momentum-dependent divergence of the Fan-Migdal electron linewidth. We then develop a self-consistent theory for calculating electron linewidths, which not only removes this piezoelectric divergence but ...
arxiv   +1 more source

High spatial resolution dosimetry for radiation oncology with “MagicPlates,” a new 976‐pixel monolithic silicon detector

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose We introduce the next generation of “MagicPlate” 2D monolithic pixelated semiconductor detectors – MagicPlate‐976 (MP976). It features a larger array area, higher spatial resolution, and does not require external triggering. We perform a comprehensive characterization for small‐field steep‐dose‐gradient dosimetry applications in ...
Ilia Filipev, Saree Alnaghy, Martin Carolan, Jason Paino, Marco Petasecca, Dean Cutajar, Joel Poder, Justin B. Davies, Bradley M. Oborn, Nicholas Hardcastle, Susanna Guatelli, Michael Lerch, Tomas Kron, Anatoly Rosenfeld   +13 more
wiley   +1 more source

Improved electrical ideality and photoresponse in near-infrared phototransistors realized by bulk heterojunction channels

iScience, 2022
Summary: The factors that affect the electrical ideality and photoresponse in near-infrared (NIR) organic phototransistors (OPTs) are still nebulous. Here, simultaneous increase in electrical ideality and NIR response in the OPTs is realized by applying ...
Ning Li, Yanlian Lei, Yanqin Miao, Furong Zhu   +3 more
doaj  

Dispersion management in nonlinear photonic crystal fibres with nanostructured core [PDF]

Journal of the European Optical Society-Rapid Publications, 2011
The subwavelength structure of the core of a photonic crystal fibre can modify its dispersion characteristic and significantly shift the zero dispersion wavelength.
Buczynski Ryszard, Pysz Dariusz, Stepien Ryszard, Kasztelanic Rafal, Kujawa Ireneusz, Franczyk Marcin, Filipkowski Adam, Waddie Andrew J., Taghizadeh Mohammad R.   +8 more
doaj   +1 more source

Electronic structure methods: Augmented Waves, Pseudopotentials and the Projector Augmented Wave Method [PDF]

, 2004
The main goal of electronic structure methods is to solve the Schroedinger equation for the electrons in a molecule or solid, to evaluate the resulting total energies, forces, response functions and other quantities of interest. In this paper we describe
Blöchl, Peter E., Foerst, Clemens J., Kaestner, Johannes   +2 more
core   +2 more sources

IROC phantoms accurately detect MLC delivery errors

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose We evaluated the impact of random and whole‐bank multileaf collimator (MLC) delivery errors on dosimetric delivery accuracy in the Imaging and Radiation Oncology Core (IROC) phantom audits, as well as differences in delivery accuracy between the IROC phantom prescription and typical clinical fraction sizes.
Sharbacha S. Edward, Julianne M. Pollard‐Larkin, Peter A. Balter, Rebecca M. Howell, Christine B. Peterson, Stephen F. Kry   +5 more
wiley   +1 more source