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Related papers: Self-compensation in highly n-type InN

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Aims. We present a 0.2--200 keV broad-band study of absorbed AGN observed with INTEGRAL, XMM-Newton, Chandra and ASCA to investigate the continuum shape and the absorbing/reflecting medium properties. Methods. The sources are selected in…

Astrophysics · Physics 2009-11-13 A. De Rosa , L. Bassani , P. Ubertini , F. Panessa , A. Malizia , A. J. Dean , R. Walter

We study the backward scatterings of plane waves by reciprocal scatterers and reveal that $n$-fold ($n\geq3$) rotation symmetry is sufficient to secure invariant backscattering for arbitrarily-polarized incident plane waves. It is further…

Optics · Physics 2021-01-27 Weijin Chen , Qingdong Yang , Yuntian Chen , Wei Liu

Collider-testable type I seesaw extensions of the Standard Model are generally protected by an approximate lepton number (LN) symmetry. Consequently, they predict pseudo-Dirac heavy neutral leptons (HNLs) composed of two nearly degenerate…

High Energy Physics - Phenomenology · Physics 2024-08-05 Stefan Antusch , Jan Hajer , Bruno M. S. Oliveira

Achieving efficient n-type doping in AlN, a representative ultrawide bandgap (UWBG) semiconductor, remains a longstanding challenge that limits its application in high-power electronics and deep-ultraviolet optoelectronics. Conventional…

Materials Science · Physics 2025-12-04 Yujie Liu , Sieun Chae , Emmanouil Kioupakis

A new non-ballistic analytical model for the intrinsic channel region of MOSFET-like single-walled carbon-nanotube field-effect transistors with ohmic contacts has been developed which overcomes the limitations of existing models and…

Mesoscale and Nanoscale Physics · Physics 2016-03-01 Igor Bejenari , Martin Claus

Three-dimensional topological insulators harbour metallic surface states with exotic properties. In transport or optics, these properties are typically masked by defect-induced bulk carriers. Compensation of donors and acceptors reduces the…

Mesoscale and Nanoscale Physics · Physics 2016-06-29 N. Borgwardt , J. Lux , I. Vergara , Zhiwei Wang , A. A. Taskin , Kouji Segawa , P. H. M. van Loosdrecht , Yoichi Ando , A. Rosch , M. Grüninger

Understanding phonon transport properties in defect-laden AlN is important for their device applications. Here, we construct a machine-learning potential to describe phonon transport with $ab$ $initio$ accuracy in pristine and defect-laden…

Materials Science · Physics 2024-09-25 Ying Dou , Koji Shimizu , Jesús Carrete , Hiroshi Fujioka , Satoshi Watanabe

We use the antenna subtraction method to isolate the double real radiation infrared singularities present in gluonic scattering amplitudes at next-to-next-to-leading order. The antenna subtraction framework has been successfully applied to…

High Energy Physics - Phenomenology · Physics 2015-03-13 E. W. N. Glover , Joao Pires

We consider hypothetical Ga7MnAs8, Ga16MnAs16, and Ga14Mn3As16 crystals with Mn in a substitutional, interstitial, and both positions. Spin-polarized FPLAPW calculations were used to obtain their electronic structure. We show that the…

Materials Science · Physics 2007-05-23 J. Masek , F. Maca

We investigate the native point defects in the long-wavelength infrared (LWIR) detector material Hg$_{0.75}$Cd$_{0.25}$Te using a dielectric-dependent hybrid density functional combined with spin-orbit coupling. Characterizing these point…

Materials Science · Physics 2024-03-14 Wei Chen , Gian-Marco Rignanese , Jifeng Liu , Geoffroy Hautier

The effect of pressure on acceptor levels and hole scattering mechanisms in p-GaSe is investigated through Hall effect and resistivity measurements under quasi-hydrostatic conditions up to 4 GPa. The pressure dependence of the hole…

Materials Science · Physics 2015-06-25 Daniel Errandonea , J. F. Sánchez-Royo , A. Segura , A. Chevy , L. Roa

In this paper, we study inverse scattering of massless Dirac fields that propagate in the exterior region of a Reissner-Nordstr\"om black hole. Using a stationary approach we determine precisely the leading terms of the high-energy…

Mathematical Physics · Physics 2015-05-13 Thierry Daudé , François Nicoleau

With analytical (generalized Mie scattering) and numerical (integral-equation-based) considerations we show the existence of strong resonances in the scattering response of small spheres with lossless impedance boundary. With increasing…

Classical Physics · Physics 2018-12-26 Ari Sihvola , Dimitrios C. Tzarouchis , Pasi Ylä-Oijala , Henrik Wallén , Beibei Kong

It is shown that in deep inelastic electron - ion collisions the detection, in coincidence with the scattered electron, of a nucleus A-1 in the ground state, as well as a nucleon and a nucleus A-2 also in the ground state, may provide…

Nuclear Theory · Physics 2007-05-23 C. Ciofi degli Atti , L. P. Kaptari , S. Scopetta

We compute the scattering cross section of Reissner-Nordstr\"om black holes for the case of an incident electromagnetic wave. We describe how scattering is affected by both the conversion of electromagnetic to gravitational radiation, and…

General Relativity and Quantum Cosmology · Physics 2014-09-18 Luís C. B. Crispino , Sam R. Dolan , Atsushi Higuchi , Ednilton S. de Oliveira

The target normal single-spin asymmetry in electron nucleon scattering is studied in the framework of the 1/Nc expansion of QCD, which allows for a rigorous description in the energy range that includes the Delta resonance and below the…

High Energy Physics - Phenomenology · Physics 2024-04-08 Jose L. Goity , Christian Weiss

Radiative corrections are calculated for antineutrino proton quasielastic scattering, neutrino deuteron scattering, and the asymmetry of polarised neutron beta decay from which $G_{A}/G_{V}$ is determined. A particular emphasis is given to…

High Energy Physics - Phenomenology · Physics 2015-06-25 T. Kubota , M. Fukugita

We experimentally show an all-optical multipolar decomposition of the lowest-order Eigenmodes of a single gold nanoprism using azimuthally and radially polarized cylindrical vector beams. By scanning the particle through these tailored…

Optics · Physics 2015-03-10 Thomas Bauer , Sergej Orlov , Gerd Leuchs , Peter Banzer

We investigate the radiation from a charged particle rotating around a dielectric cylinder with a negative real part of dielectric permittivity. For the general case of frequency dispersion in dielectric permittivity, expressions are…

Silicon carbide (SiC) hosts a number of point defects that are being explored as single-photon emitters for quantum applications. Unfortunately, these quantum emitters lose their photostability when placed in proximity to the surface of the…

Materials Science · Physics 2026-03-02 Cyrille Armel Sayou Ngomsi , Sai Krishna Narayanan , Pratibha Dev