Výsledky vyhledávání - "David Ernsting"

Electron–phonon superconductivity in BaSn5

Autor: David Ernsting, David Billington, Stephen B Dugdale, Thomas E. Millichamp

Publikováno v: Billington, D, Ernsting, D, Millichamp, T & Dugdale, S 2015, ' Electron–phonon superconductivity in BaSn5 ', Philosophical Magazine, vol. 95, no. 15, pp. 1728-1737 . https://doi.org/10.1080/14786435.2015.1040480

First-principles calculations of the electronic structure and phonon dispersion relation of the superconducting compound were performed. This has allowed the calculation of the electron–phonon matrix elements from which the electron–phonon coupli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cf489c9dc7b2b6557d719d40382dc50
https://doi.org/10.1080/14786435.2015.1040480

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Vacancies, disorder-induced smearing of the electronic structure, and its implications for the superconductivity of anti-perovskite MgC0.93Ni2.85

Autor: Stephen B Dugdale, Jonathan A. Duffy, David Billington, Thomas E. Millichamp, Nikolai D. Zhigadlo, Hazel A. Sparkes, David Ernsting, Rebecca A. Edwards, Sean Giblin, Jonathan W. Taylor

Publikováno v: Ernsting, David; Billington, David; Millichamp, Thomas E.; Edwards, Rebecca A.; Sparkes, Hazel A.; Zhigadlo, Nikolai; Giblin, Sean R.; Taylor, Jonathan W.; Duffy, Jonathan A.; Dugdale, Stephen B. (2017). Vacancies, disorder-induced smearing of the electronic structure, and its implications for the superconductivity of anti-perovskite MgC0.93Ni2.85. Scientific Reports, 7(10148), pp. 1-9. Nature Publishing Group 10.1038/s41598-017-09997-2
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Ernsting, D, Billington, D, Millichamp, T, Edwards, R A, Sparkes, H, Zhigadlo, ND, Giblin, S R, Taylor, J, Duffy, J & Dugdale, S 2017, ' Vacancies, disorder-induced smearing of the electronic structure, and its implications for the superconductivity of anti-perovskite MgC 0.93 Ni 2.85 ', Scientific Reports, vol. 7, 10148 . https://doi.org/10.1038/s41598-017-09997-2

The anti-perovskite superconductor MgC$_{0.93}$Ni$_{2.85}$ was studied using high-resolution x-ray Compton scattering combined with electronic structure calculations. Compton scattering measurements were used to determine experimentally a Fermi surfa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::058a22e4c69d708681f3d1401746f1c0
https://doi.org/10.1038/s41598-017-09997-2

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Vacancies, disorder-induced smearing of the electronic structure, and its implications for the superconductivity of anti-perovskite MgC

Autor: David, Ernsting, David, Billington, Thomas E, Millichamp, Rebecca A, Edwards, Hazel A, Sparkes, Nikolai D, Zhigadlo, Sean R, Giblin, Jonathan W, Taylor, Jonathan A, Duffy, Stephen B, Dugdale

Publikováno v: Scientific Reports

The anti-perovskite superconductor MgC0.93Ni2.85 was studied using high-resolution x-ray Compton scattering combined with electronic structure calculations. Compton scattering measurements were used to determine experimentally a Fermi surface that sh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::f3295087cadce83b6d8c2ad6a88f5be1
https://pubmed.ncbi.nlm.nih.gov/28860522

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Spin-Resolved Fermi Surface of the Localized Ferromagnetic Heusler CompoundCu2MnAlMeasured with Spin-Polarized Positron Annihilation

Autor: Peter Böni, Christian Pfleiderer, Christoph Hugenschmidt, Stephen B Dugdale, Andreas Bauer, Michael Leitner, Hubert Ceeh, Wolfgang Kreuzpaintner, David Ernsting, Josef Weber

Publikováno v: Physical Review Letters. 115

We determined the bulk electronic structure of the prototypical Heusler compound Cu(2)MnAl by measuring the angular correlation of annihilation radiation using spin-polarized positrons. To this end, a new algorithm for reconstructing 3D densities fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30c4c7d9bbb1bf967146a9f05d1587b6
https://doi.org/10.1103/physrevlett.115.206404

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Spin-Resolved Fermi Surface of the Localized Ferromagnetic Heusler Compound Cu₂MnAl Measured with Spin-Polarized Positron Annihilation

Autor: Josef A, Weber, Andreas, Bauer, Peter, Böni, Hubert, Ceeh, Stephen B, Dugdale, David, Ernsting, Wolfgang, Kreuzpaintner, Michael, Leitner, Christian, Pfleiderer, Christoph, Hugenschmidt

Publikováno v: Physical review letters. 115(20)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::efd174833139935078d6ca2a46c2dd5f
https://pubmed.ncbi.nlm.nih.gov/26613459

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Magnetic frustration, short-range correlations and the role of the paramagnetic Fermi surface of PdCrO2

Autor: David, Billington, David, Ernsting, Thomas E, Millichamp, Christopher, Lester, Stephen B, Dugdale, David, Kersh, Jonathan A, Duffy, Sean R, Giblin, Jonathan W, Taylor, Pascal, Manuel, Dmitry D, Khalyavin, Hiroshi, Takatsu

Publikováno v: Scientific Reports

Frustrated interactions exist throughout nature, with examples ranging from protein folding through to frustrated magnetic interactions. Whilst magnetic frustration is observed in numerous electrically insulating systems, in metals it is a rare pheno

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e639096fbf6888e28c0df2ba0cb33870
https://pubmed.ncbi.nlm.nih.gov/26206589

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Electron-phonon coupling and superconducting critical temperature of the YIr2Si2 and LaIr2Si2 high-temperature polymorphs from first-principles

Autor: Jack R. Ward, Simon A C Nickau, David Ernsting, Stephen B Dugdale, Rosie F. Sperring, Tom Farley, Thomas E. Millichamp, David Billington

Publikováno v: Billington, D, Nickau, S A C, Farley, T, Ward, J R, Sperring, R F, Millichamp, T E, Ernsting, D & Dugdale, S B 2014, ' Electron-phonon coupling and superconducting critical temperature of the YIr 2 Si 2 and LaIr 2 Si 2 high-temperature polymorphs from first-principles ', Journal of the Physical Society of Japan, vol. 83, no. 4, 044710 . https://doi.org/10.7566/JPSJ.83.044710

Ab initio calculations of the electronic structure and lattice-vibrational properties were performed on the superconducting high-temperature polymorphs of YIr2Si2 and LaIr2Si2. The electron-phonon coupling constants ep were found to be 0.61 and 0.56

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dd2d8189e17d0ba10fe26048cc9cf63
https://research-information.bris.ac.uk/ws/files/35877359/rir2si2_revtex.pdf

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The Bristol HIDAC 2D-ACAR Spectrometer

Autor: David Ernsting, M A Alam, TD Haynes, Stephen B Dugdale, C. Utfeld, David Billington, Jude Laverock

Publikováno v: Journal of Physics: Conference Series. 443:012083

We describe the Bristol spectrometer for positron annihilation Fermi surface studies utilising high-density avalanche chambers (HIDACs) as position sensitive detectors. Measurements on ?-SiO2 show, through the momentum distribution of para-positroniu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c45d91f86b9ade8474b644c69dbe5222
https://doi.org/10.1088/1742-6596/443/1/012083

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