Výsledky vyhledávání - "Jan‐Etienne Pudell"

Akademický článek

Controlling effective field contributions to laser-induced magnetization precession by heterostructure design

Autor: Jasmin Jarecki, Maximilian Mattern, Fried-Conrad Weber, Jan-Etienne Pudell, Xi-Guang Wang, Juan-Carlos Rojas Sánchez, Michel Hehn, Alexander von Reppert, Matias Bargheer

Publikováno v: Communications Physics, Vol 7, Iss 1, Pp 1-10 (2024)

Abstract Nanoscale heterostructure design can control laser-induced heat dissipation and strain propagation, as well as their efficiency for driving magnetization precession. Here, we incorporate MgO layers into the experimental platform of metallic

Externí odkaz: https://doaj.org/article/56cd3759fe2e4592824bc89486d236fc

Zobrazit plný text záznamu

Plný text ve formátu HTML

Akademický článek

Concepts and use cases for picosecond ultrasonics with x-rays

Autor: Maximilian Mattern, Alexander von Reppert, Steffen Peer Zeuschner, Marc Herzog, Jan-Etienne Pudell, Matias Bargheer

Publikováno v: Photoacoustics, Vol 31, Iss , Pp 100503- (2023)

This review discusses picosecond ultrasonics experiments using ultrashort hard x-ray probe pulses to extract the transient strain response of laser-excited nanoscopic structures from Bragg-peak shifts. This method provides direct, layer-specific, and

Externí odkaz: https://doaj.org/article/72f5be56dedc444d97d66e3ab80ab751

Zobrazit plný text záznamu

Akademický článek

Towards shaping picosecond strain pulses via magnetostrictive transducers

Autor: Maximilian Mattern, Jan-Etienne Pudell, Karine Dumesnil, Alexander von Reppert, Matias Bargheer

Publikováno v: Photoacoustics, Vol 30, Iss , Pp 100463- (2023)

Using time-resolved x-ray diffraction, we demonstrate the manipulation of the picosecond strain response of a metallic heterostructure consisting of a dysprosium (Dy) transducer and a niobium (Nb) detection layer by an external magnetic field. We uti

Externí odkaz: https://doaj.org/article/cb3c74e4921e45bb8bca7cada4eba79b

Zobrazit plný text záznamu

Phonon-Dominated Energy Transport in Purely Metallic Heterostructures

Autor: Marc Herzog, Alexander von Reppert, Jan‐Etienne Pudell, Carsten Henkel, Matthias Kronseder, Christian H. Back, Alexei A. Maznev, Matias Bargheer

Ultrafast X-ray diffraction is used to quantify the transport of energy in laser-excited nanoscale gold–nickel (Au–Ni) bilayers. Electron transport and efficient electron–phonon coupling in Ni convert the laser-deposited energy in the conductio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8ada5c812657acf855923e606fdeb0f
https://mediatum.ub.tum.de/1693449