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Showing 1 to 12 of 20 entries
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Demonstration of a Circularly Polarized Plasma-Based Soft-X-Ray Laser.

Physical review letters

Depresseux A, Oliva E, Gautier J, Tissandier F, Lambert G, Vodungbo B, Goddet JP, Tafzi A, Nejdl J, Kozlova M, Maynard G, Kim HT, Phuoc KT, Rousse A, Zeitoun P, Sebban S.
PMID: 26340189
Phys Rev Lett. 2015 Aug 21;115(8):083901. doi: 10.1103/PhysRevLett.115.083901. Epub 2015 Aug 19.

We report the first experimental demonstration of a laser-driven circularly polarized soft-x-ray laser chain. It has been achieved by seeding a 32.8 nm Kr ix plasma amplifier with a high-order harmonic beam, which has been circularly polarized using a...

Corrigendum: Indirect excitation of ultrafast demagnetization.

Scientific reports

Vodungbo B, Tudu B, Perron J, Delaunay R, Müller L, Berntsen MH, Grübel G, Malinowski G, Weier C, Gautier J, Lambert G, Zeitoun P, Gutt C, Jal E, Reid AH, Granitzka PW, Jaouen N, Dakovski GL, Moeller S, Minitti MP, Mitra A, Carron S, Pfau B, von Korff Schmising C, Schneider M, Eisebitt S, Lüning J.
PMID: 26942306
Sci Rep. 2016 Mar 04;6:21727. doi: 10.1038/srep21727.

No abstract available.

Femtosecond single-shot imaging of nanoscale ferromagnetic order in Co/Pd multilayers using resonant x-ray holography.

Physical review letters

Wang T, Zhu D, Wu B, Graves C, Schaffert S, Rander T, Müller L, Vodungbo B, Baumier C, Bernstein DP, Bräuer B, Cros V, de Jong S, Delaunay R, Fognini A, Kukreja R, Lee S, López-Flores V, Mohanty J, Pfau B, Popescu H, Sacchi M, Sardinha AB, Sirotti F, Zeitoun P, Messerschmidt M, Turner JJ, Schlotter WF, Hellwig O, Mattana R, Jaouen N, Fortuna F, Acremann Y, Gutt C, Dürr HA, Beaurepaire E, Boeglin C, Eisebitt S, Grübel G, Lüning J, Stöhr J, Scherz AO.
PMID: 23005013
Phys Rev Lett. 2012 Jun 29;108(26):267403. doi: 10.1103/PhysRevLett.108.267403. Epub 2012 Jun 27.

We present the first single-shot images of ferromagnetic, nanoscale spin order taken with femtosecond x-ray pulses. X-ray-induced electron and spin dynamics can be outrun with pulses shorter than 80 fs in the investigated fluence regime, and no permanent aftereffects...

Single-shot Monitoring of Ultrafast Processes via X-ray Streaking at a Free Electron Laser.

Scientific reports

Buzzi M, Makita M, Howald L, Kleibert A, Vodungbo B, Maldonado P, Raabe J, Jaouen N, Redlin H, Tiedtke K, Oppeneer PM, David C, Nolting F, Lüning J.
PMID: 28775262
Sci Rep. 2017 Aug 03;7(1):7253. doi: 10.1038/s41598-017-07069-z.

The advent of x-ray free electron lasers has extended the unique capabilities of resonant x-ray spectroscopy techniques to ultrafast time scales. Here, we report on a novel experimental method that allows retrieving with a single x-ray pulse the time...

Investigating the role of superdiffusive currents in laser induced demagnetization of ferromagnets with nanoscale magnetic domains.

Scientific reports

Moisan N, Malinowski G, Mauchain J, Hehn M, Vodungbo B, Lüning J, Mangin S, Fullerton EE, Thiaville A.
PMID: 24722395
Sci Rep. 2014 Apr 11;4:4658. doi: 10.1038/srep04658.

Understanding the loss of magnetic order and the microscopic mechanisms involved in laser induced magnetization dynamics is one of the most challenging topics in today's magnetism research. While scattering between spins, phonons, magnons and electrons have been proposed as...

Multi-color imaging of magnetic Co/Pt heterostructures.

Structural dynamics (Melville, N.Y.)

Willems F, von Korff Schmising C, Weder D, Günther CM, Schneider M, Pfau B, Meise S, Guehrs E, Geilhufe J, Merhe AE, Jal E, Vodungbo B, Lüning J, Mahieu B, Capotondi F, Pedersoli E, Gauthier D, Manfredda M, Eisebitt S.
PMID: 28289691
Struct Dyn. 2017 Feb 16;4(1):014301. doi: 10.1063/1.4976004. eCollection 2017 Jan.

We present an element specific and spatially resolved view of magnetic domains in Co/Pt heterostructures in the extreme ultraviolet spectral range. Resonant small-angle scattering and coherent imaging with Fourier-transform holography reveal nanoscale magnetic domain networks via magnetic dichroism of...

Spatial properties of odd and even low order harmonics generated in gas.

Scientific reports

Lambert G, Andreev A, Gautier J, Giannessi L, Malka V, Petralia A, Sebban S, Stremoukhov S, Tissandier F, Vodungbo B, Zeitoun P.
PMID: 25585715
Sci Rep. 2015 Jan 14;5:7786. doi: 10.1038/srep07786.

High harmonic generation in gases is developing rapidly as a soft X-ray femtosecond light-source for applications. This requires control over all the harmonics characteristics and in particular, spatial properties have to be kept very good. In previous literature, measurements...

Ultrafast optical demagnetization manipulates nanoscale spin structure in domain walls.

Nature communications

Pfau B, Schaffert S, Müller L, Gutt C, Al-Shemmary A, Büttner F, Delaunay R, Düsterer S, Flewett S, Frömter R, Geilhufe J, Guehrs E, Günther CM, Hawaldar R, Hille M, Jaouen N, Kobs A, Li K, Mohanty J, Redlin H, Schlotter WF, Stickler D, Treusch R, Vodungbo B, Kläui M, Oepen HP, Lüning J, Grübel G, Eisebitt S.
PMID: 23033076
Nat Commun. 2012;3:1100. doi: 10.1038/ncomms2108.

During ultrafast demagnetization of a magnetically ordered solid, angular momentum has to be transferred between the spins, electrons, and phonons in the system on femto- and picosecond timescales. Although the intrinsic spin-transfer mechanisms are intensely debated, additional extrinsic mechanisms...

Toward ultrafast magnetic depth profiling using time-resolved x-ray resonant magnetic reflectivity.

Structural dynamics (Melville, N.Y.)

Chardonnet V, Hennes M, Jarrier R, Delaunay R, Jaouen N, Kuhlmann M, Ekanayake N, Léveillé C, von Korff Schmising C, Schick D, Yao K, Liu X, Chiuzbăian GS, Lüning J, Vodungbo B, Jal E.
PMID: 34235231
Struct Dyn. 2021 Jun 23;8(3):034305. doi: 10.1063/4.0000109. eCollection 2021 May.

During the last two decades, a variety of models have been developed to explain the ultrafast quenching of magnetization following femtosecond optical excitation. These models can be classified into two broad categories, relying either on a local or a...

Laser-induced ultrafast demagnetization in the presence of a nanoscale magnetic domain network.

Nature communications

Vodungbo B, Gautier J, Lambert G, Sardinha AB, Lozano M, Sebban S, Ducousso M, Boutu W, Li K, Tudu B, Tortarolo M, Hawaldar R, Delaunay R, López-Flores V, Arabski J, Boeglin C, Merdji H, Zeitoun P, Lüning J.
PMID: 22893123
Nat Commun. 2012;3:999. doi: 10.1038/ncomms2007.

Femtosecond magnetization phenomena have been challenging our understanding for over a decade. Most experiments have relied on infrared femtosecond lasers, limiting the spatial resolution to a few micrometres. With the advent of femtosecond X-ray sources, nanometric resolution can now...

Transient magnetic gratings on the nanometer scale.

Structural dynamics (Melville, N.Y.)

Weder D, von Korff Schmising C, Günther CM, Schneider M, Engel D, Hessing P, Strüber C, Weigand M, Vodungbo B, Jal E, Liu X, Merhe A, Pedersoli E, Capotondi F, Lüning J, Pfau B, Eisebitt S.
PMID: 32923511
Struct Dyn. 2020 Sep 08;7(5):054501. doi: 10.1063/4.0000017. eCollection 2020 Sep.

Laser-driven non-local electron dynamics in ultrathin magnetic samples on a sub-10 nm length scale is a key process in ultrafast magnetism. However, the experimental access has been challenging due to the nanoscopic and femtosecond nature of such transport processes....

Ultrafast Demagnetization Dominates Fluence Dependence of Magnetic Scattering at Co M Edges.

Physical review letters

Schneider M, Pfau B, Günther CM, von Korff Schmising C, Weder D, Geilhufe J, Perron J, Capotondi F, Pedersoli E, Manfredda M, Hennecke M, Vodungbo B, Lüning J, Eisebitt S.
PMID: 33016712
Phys Rev Lett. 2020 Sep 18;125(12):127201. doi: 10.1103/PhysRevLett.125.127201.

We systematically study the fluence dependence of the resonant scattering cross-section from magnetic domains in Co/Pd-based multilayers. Samples are probed with single extreme ultraviolet (XUV) pulses of femtosecond duration tuned to the Co M_{3,2} absorption resonances using the FERMI@Elettra...

Showing 1 to 12 of 20 entries