Zobrazeno 1 - 10
of 139
pro vyhledávání: '"B. Y. Mueller"'
Publikováno v:
Journal of Magnetism and Magnetic Materials. 414:14-18
Laser-induced modifications of magnetic materials on very small spatial dimensions and ultrashort timescales are a promising field for novel storage and spintronic devices. Therefore, the contribution of electron–electron spin-flip scattering to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d56f4da9266246da566cdf2be29b57b
https://doi.org/10.1016/j.jmmm.2016.04.033
https://doi.org/10.1016/j.jmmm.2016.04.033
Autor:
Michael Haag, Manfred Fähnle, W. Weng, B. Y. Mueller, Haonan Huang, J. Briones, Nicolas Teeny, Tilmann Kuhn
Publikováno v:
Physical Review B. 95
The treatment of ultrafast demagnetization after femtosecond laser-pulse excitation of a ferromagnetic film is usually done by a theory based on Fermi's golden rule which neglects the effects of electronic correlations. In the present paper the contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97257fc0574c3822cdf2949c5dd25872
https://doi.org/10.1103/physrevb.95.224439
https://doi.org/10.1103/physrevb.95.224439
Autor:
Baerbel Rethfeld, B. Y. Mueller
Publikováno v:
Applied Surface Science. 302:24-28
Exciting a metal by an ultrashort laser pulse, the electrons are driven out of thermal equilibrium, while the phonon system remains almost unaffected. During and after the irradiation, the electrons thermalize and transfer energy to the phonons. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68a3d93b6f14283744d2aaa8cd591904
https://doi.org/10.1016/j.apsusc.2013.12.074
https://doi.org/10.1016/j.apsusc.2013.12.074
Publikováno v:
Physical Review B. 92
Transition matrix elements for electron-phonon scattering are discussed. The approximate expression for the matrix element derived by the combination of a phenomenological theory of electronic and ionic screening of the electron-electron interaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6914242a5a46592e7b5e999a2cb64deb
https://doi.org/10.1103/physrevb.92.195109
https://doi.org/10.1103/physrevb.92.195109
Autor:
Michael Haag, Haonan Huang, Weikai Weng, Johan Briones, Nicolas Teeny, Tilmann Kuhn, Manfred Fähnle, B. Y. Mueller, Lifa Zhang, Christian Illg, Theodoros Tsatsoulis
Publikováno v:
American Journal of Modern Physics. 7:68
When a magnetic film is excited by a femtosecond laser pulse, either with THz or with optical frequencies, then there is at least a partial demagnetization within a few hundred femtoseconds, followed by a remagnetization to the original state on a bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e1c641dc10df9bc0240a2a860df995b
https://doi.org/10.11648/j.ajmp.20180702.12
https://doi.org/10.11648/j.ajmp.20180702.12
Autor:
B. Y. Mueller, Baerbel Rethfeld
Publikováno v:
Springer Proceedings in Physics ISBN: 9783319077420
Applying spin-resolved Boltzmann collision integrals, we find that ultrafast demagnetization dynamics is driven by both the equilibration of separated temperatures and chemical potentials of spin-up and spin-down electrons. We set up a system of equa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6efd5bcc04cb52c0de6db9e483d25dbb
https://doi.org/10.1007/978-3-319-07743-7_22
https://doi.org/10.1007/978-3-319-07743-7_22
Autor:
Mirko Cinchetti, Baerbel Rethfeld, Martin Aeschlimann, B. Y. Mueller, Hans Christian Schneider
Publikováno v:
Springer Proceedings in Physics ISBN: 9783319077420
We analyze the ultrafast demagnetization after ultrashort laser excitation by a kinetic model based on Elliott-Yafet scattering processes. By applying complete Boltzmann scattering integrals we trace the majority and minority electrons as well as pho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b4daf097951a090da8d917938e19a18
https://doi.org/10.1007/978-3-319-07743-7_37
https://doi.org/10.1007/978-3-319-07743-7_37
Autor:
B. Y. Mueller, Baerbel Rethfeld
Publikováno v:
Physical Review B. 87
When an ultrashort laser pulse irradiates a metal, energy is absorbed by the electron system which is driven out of thermal equilibrium on a femtosecond time scale. Due to electron-electron collisions, a new thermodynamical equilibrium state within t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76602e29e47dbfc22b7fd8069b607734
https://doi.org/10.1103/physrevb.87.035139
https://doi.org/10.1103/physrevb.87.035139
Autor:
Baerbel Rethfeld, Martin Aeschlimann, Svenja Vollmar, Hans Christian Schneider, B. Y. Mueller, Mirko Cinchetti, Alexander Baral
Publikováno v:
Physical review letters. 111(16)
Motivated by the recent controversy about the importance of spin-flip scattering for ultrafast demagnetization in ferromagnets, we study the spin-dependent electron dynamics based on a dynamical Elliott-Yafet mechanism. The key improvement to earlier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1708d0f7a61e5dc87c4758c56c598d6
https://pubmed.ncbi.nlm.nih.gov/24182297
https://pubmed.ncbi.nlm.nih.gov/24182297
Publikováno v:
AIP Conference Proceedings.
When an ultrashort laser pulse irradiates a metal, the electron system absorbs the energy of the laser beam and is driven out of thermal equilibrium. Due to electron-electron collisions a new thermodynamical equilibrium state within the electron syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a55b87f0c0eb719dc1b722c296c9a19
https://doi.org/10.1063/1.4739913
https://doi.org/10.1063/1.4739913