Results 91 to 100 of about 781,895 (361)

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Cyclotron lines in highly magnetized neutron stars [PDF]

Astronomy & Astrophysics, 2018
Cyclotron lines, also called cyclotron resonant scattering features are spectral features, generally appearing in absorption, in the X-ray spectra of objects containing highly magnetized neutron stars, allowing the direct measurement of the magnetic ...
R. Staubert, J. Trümper, E. Kendziorra, D. Klochkov, K. Postnov, P. Kretschmar, K. Pottschmidt, F. Haberl, R. Rothschild, A. Santangelo, J. Wilms, I. Kreykenbohm, F. Fürst   +12 more
semanticscholar   +1 more source

Large Anomalous and Topological Hall Effect and Nernst Effect in a Dirac Kagome Magnet Fe3Ge

Advanced Functional Materials, EarlyView.
Fe3Ge, a Kagome‐lattice magnet, exhibits remarkable anomalous Hall and Nernst effects, with transverse thermoelectric conductivity surpassing or comaprable to some well‐known ferromagnets. First‐principles calculations attribute these to Berry curvature from massive Dirac gaps. Additionally, topological Hall and Nernst signals emerge from field‐induced
Chunqiang Xu, Shuvankar Gupta, Hengxin Tan, Hyeonhu Bae, Olajumoke Oluwatobiloba Emmanuel, Mingyu Xu, Yan Wu, Xiaofeng Xu, Pengpeng Zhang, Weiwei Xie, Binghai Yan, Xianglin Ke   +11 more
wiley   +1 more source

Rotating neutron stars with exotic cores: masses, radii, stability [PDF]

, 2016
A set of theoretical mass-radius relations for rigidly rotating neutron stars with exotic cores, obtained in various theories of dense matter, is reviewed. Two basic observational constraints are used: the largest measured rotation frequency (716 Hz) and
Bejger, M., Fortin, M., Haensel, P., Zdunik, J. L.   +3 more
core   +2 more sources

Studying strong phase transitions in neutron stars with gravitational waves [PDF]

Physical Review D, 2019
The composition of neutron stars at the extreme densities reached in their cores is currently unknown. Besides nuclear matter of normal neutrons and protons, the cores of neutron stars might harbor exotic matter such as deconfined quarks.
K. Chatziioannou, Sophia Han
semanticscholar   +1 more source

A Coherent Radio Burst from an X-Ray Neutron Star in the Carina Nebula

The Astrophysical Journal Letters
The neutron star zoo comprises several subpopulations that range from energetic magnetars and thermally emitting X-ray neutron stars to radio-emitting pulsars. Despite studies over the last five decades, it has been challenging to obtain a clear physical
K. M. Rajwade, J. Tian, G. Younes, B. Posselt, B. Stappers, Z. Wadiasingh, E. D. Barr, M. C. Bezuidenhout, M. Caleb, F. Jankowski, M. Kramer, I. Pastor-Marazuela, M. Surnis   +12 more
doaj   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

Quark phases in neutron stars and a "third family" of compact stars as a signature for phase transitions [PDF]

, 2000
The appearance of quark phases in the dense interior of neutron stars provides one possibility to soften the equation of state (EOS) of neutron star matter at high densities.
Akmal, Balberg, Bardeen, Baym, Baym, Baym, Blaizot, Bodmer, Bombaci, Bowers, Brown, C. Greiner, Chapline, Chodos, Chodos, Dey, Ellis, Farhi, Feynman, Freedman, Fujii, Gerlach, Gerlach, Ghosh, Glendenning, Glendenning, Glendenning, Glendenning, Glendenning, Glendenning, Glendenning, Glendenning, Golden, Gorenstein, Greiner, Greiner, Haberl, Harrison, Heiselberg, J. Schaffner-Bielich, K. Schertler, Kaplan, Kapusta, Keister, Kettner, Klimov, Kämpfer, Li, Li, Li, Lindblom, M.H. Thoma, Madsen, Madsen, Miller, Oppenheimer, Pavlov, Pethick, Reynolds, Schaffner, Schertler, Schertler, Schertler, Shapiro, Thorsett, Thorsett, Thorsson, Tolman, van Kerkwijk, Vija, Walter, Walter, Wasserman, Weber, Weldon, Witten, Zhang   +76 more
core   +2 more sources

Neutron stars: New constraints on asymmetric dark matter [PDF]

Physical Review D, 2019
We study an impact of asymmetric dark matter on properties of the neutron stars and their ability to reach the two solar masses limit, which allows us to present a new range of masses of dark matter particles and their fractions inside the star.
O. Ivanytskyi, V. Sagun, I. Lopes
semanticscholar   +1 more source

Quantifying Spatio‐Operational Heterogeneity in Electrochemical Devices via Operando Correlative Neutron and X‐Ray Tomography

Advanced Functional Materials, EarlyView.
Heterogeniety in electrochemical systems heavily influences device performance and durability. The study shows unique evidence of spatio‐operational heterogeneity in fuel cells via operando neutron and X‐ray tomography. Large variations in membrane thickness and hydration depend upon location and operating conditions, with implications on membrane ...
Pranay Shrestha, Jacob M. LaManna, Kieran F. Fahy, ChungHyuk Lee, Pascal J. Kim, Jason K. Lee, Elias Baltic, Daniel S. Hussey, David L. Jacobson, Aimy Bazylak   +9 more
wiley   +1 more source