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The information regarding how the intergalactic medium is reionized by astrophysical sources is contained in the tomographic three-dimensional 21 cm images from the epoch of reionization. In Zhao et al. (2022a) ("Paper I"), we demonstrated…

Instrumentation and Methods for Astrophysics · Physics 2024-09-12 Xiaosheng Zhao , Yi Mao , Shifan Zuo , Benjamin D. Wandelt

This study examines electrostatic screening effects in graphene using tight binding calculations based on the Binding energy and Bond Charge model and a modified version of it. The results indicate that the modified BBC potential decays in…

Mesoscale and Nanoscale Physics · Physics 2026-02-12 Yaorui Tan , Xiang Chen , Yunhu Zhu , Xiaowu Yang , Zhongkai Huang , Chuang Yao , Maolin Bo

Angle-resolved valence-band resonant photoemission of nickel metal has been measured close to the 2p core-level thresholds with synchrotron radiation. The well-known 6-eV correlation satellite has an intensity enhancement of about two…

Materials Science · Physics 2012-01-05 M. Magnuson , A. Nilsson , M. Weinelt , N. Mårtensson

Improper ferroelectricity (trimerization) in the hexagonal manganites RMnO$_3$ leads to a network of coupled structural and magnetic vortices that induce domain wall magnetoelectricity and magnetization neither of which, however, occurs in…

Materials Science · Physics 2015-06-12 Hena Das , Aleksander L. Wysocki , Yanan Geng , Weida Wu , Craig J. Fennie

Exchange-coupled structures consisting of ferromagnetic and ferrimagnetic layers become technologically more and more important. We show experimentally the occurrence of completely reversible, hysteresis-free minor loops of [Co(0.2…

We demonstrate a combination of computational tools and experimental 4D-STEM methods to image the local magnetic moment in antiferromagnetic Fe$_2$As with 6 angstrom spatial resolution. Our techniques utilize magnetic diffraction peaks,…

The elastic scattering of spinless vortex electrons on realistic target atoms has been investigated. In particular, expressions are derived in different approximations for the elastic angular-differential cross sections. We develop a…

Atomic Physics · Physics 2024-11-25 A. L. Harris , S. Fritzsche

Understanding the complexities of electronic and magnetic ground states in solids is one of the main goals of solid-state physics. Materials with the canonical ThCr$_2$Si$_2$-type structure have proved particularly fruitful in this regards,…

Strongly Correlated Electrons · Physics 2015-06-12 James R. Neilson , Anna Llobet , Jiajia Wen , Matthew R. Suchomel , Tyrel M. McQueen

In this work, photostrictive manipulations of static and dynamic magnetic properties are demonstrated in an extrinsic multiferroic composite. The photostriction is achieved with visible light in the blue region of the spectrum. The…

We explore the potential for detecting rotational instabilities in the post-merger phase of binary neutron star mergers using different network configurations of upgraded and next-generation gravitational wave detectors. Our study employs…

General Relativity and Quantum Cosmology · Physics 2026-05-05 Argyro Sasli , Nikolaos Karnesis , Nikolaos Stergioulas

Flying on board the James Webb Space Telescope (JWST) above Earth's turbulent atmosphere, the Aperture Masking Interferometer (AMI) on the NIRISS instrument is the highest-resolution infrared interferometer ever placed in space. However,…

Instrumentation and Methods for Astrophysics · Physics 2026-04-17 Max Charles , Louis Desdoigts , Benjamin Pope , Peter Tuthill , Dori Blakely , Doug Johnstone , Shrishmoy Ray , K. E. Saavik Ford , Barry McKernan , Anand Sivaramakrishnan

We perform transmission spectroscopy on single quantum dots and examine the effects of a resident carriers spin, the incident laser spot size, polarization, and power on the experimental contrast. We demonstrate a factor of 4 improvement in…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 B. D. Gerardot , S. Seidl , P. A. Dalgarno , M. Kroner , K. Karrai , A. Badolato , P. M. Petroff , R. J. Warburton

Recent experiments have shown that C60 can be positively field-doped. In that state, fullerene exhibits a higher resistivity and a higher superconducting temperature than the corresponding negatively doped state. A strong intramolecular…

Superconductivity · Physics 2009-11-07 Nicola Manini , Andrea Dal Corso , Michele Fabrizio , Erio Tosatti

Accreting supermassive binary black holes (SMBBHs) are potential multi-messenger sources because they emit both gravitational wave and electromagnetic (EM) radiation. Past work has shown that their EM output may be periodically modulated by…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Scott C. Noble , Julian H. Krolik , Manuela Campanelli , Yosef Zlochower , Bruno C. Mundim , Hiroyuki Nakano , Miguel Zilhão

The measurement of the charge asymmetry $A_{FB}(e^-e^+\to \mu^-\mu^+)$ will play an important role at the high-luminosity circular electron-positron collider FCCee considered for construction at CERN. In particular, near the Z resonance,…

High Energy Physics - Phenomenology · Physics 2019-07-24 Stanislaw Jadach , Scott Yost

Absorption imaging of ultracold atoms is the foundation for quantitative extraction of information from experiments with ultracold atoms. Due to the limited exposure time available in these systems, the signal-to-noise ratio is largest for…

The dependences of the maximum and the half-width of near band-edge photoluminescence of semi-insulating undoped GaAs crystals at 77K on the concentration of background acceptor impurities and the level of excitation in the range from…

Materials Science · Physics 2015-05-13 V. F. Kovalenko , S. V. Shutov , Ye. A. Baganov , M. M. Smyikalo

We performed a detailed analysis of the process $e^+e^-\to \ell \nu q\bar{q}'$ to determine its sensitivity to anomalous trilinear gauge boson couplings of the $WW\gamma$ and $WWZ$ vertices and how the sensitivity varies with energy and…

High Energy Physics - Phenomenology · Physics 2009-10-28 Mikulas Gintner , Stephen Godfrey

The string melting version of a multi-phase transport model is often applied to high-energy heavy-ion collisions since the dense matter thus formed is expected to be in parton degrees of freedom. In this work we improve its quark…

Nuclear Theory · Physics 2017-07-26 Yuncun He , Zi-Wei Lin

Time-resolved imaging of chemically active valence electron densities is a long sought goal, as these electrons dictate the course of chemical reactions. However, x-ray scattering is always dominated by the core and inert valence electrons,…

Chemical Physics · Physics 2015-06-19 Timm Bredtmann , Misha Ivanov , Gopal Dixit