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Related papers: Structural ordering of laser-processed FePdCu thin…

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The evolution of a magnetic domain structure upon excitation by an intense, femtosecond Infra-Red (IR) laser pulse has been investigated using single-shot based time-resolved resonant X-ray scattering at the X-ray Free Electron laser LCLS.…

The parallel or antiparallel arrangement of electron spins plays a pivotal role in determining the properties of a physical system. To meet the demands for innovative technological solutions, extensive efforts have been dedicated to…

Heat and disorder are opponents of magnetism. This fact, expressed in Curie's law established more than a century ago, holds even in the highly non-equilibrium interaction of ultra-intense laser pulses with magnetic matter. In contradiction…

Mesoscale and Nanoscale Physics · Physics 2024-05-22 T. Jauk , H. Hampel , J. Walowski , K. Komatsu , J. Kredl , E. I. Harris-Lee , J. K. Dewhurst , M. Münzenberg , S. Shallcross , S. Sharma , M. Schultze

Upon femtosecond-laser stimulation, generally materials are expected to recover back to their thermal-equilibrium conditions, with only a few exceptions reported. Here we demonstrate that deviation from the thermal-equilibrium pathway can…

Strongly Correlated Electrons · Physics 2021-12-21 Ruitang Wang , J. Sun , D. Meyers , J. Q. Lin , J. Yang , G. Li , H. Ding , Anthony D. DiChiara , Y. Cao , J. Liu , M. P. M. Dean , Haidan Wen , X. Liu

We report on picosecond UV-laser processing of hexagonal boron nitride (hBN) at moderately high pressures above 500 bar. The main effect is specific to the ambient gas and laser pulse duration in the ablation regime: when samples are…

We report a successful synthesis of monodisperse L10-FePt nanocrystals which are not only superior in magnetism but also easy to handle through being dispersible in solvents. Thanks to a thick SiO2-coating, the thermal treatment needed to…

Materials Science · Physics 2009-11-11 Shinpei Yamamoto , Yasumasa Morimoto , Teruo Ono , Mikio Takano

Barium hexaferrite (BaFe12O19 or BaM) films were grown on c-plane sapphire (0001) substrates by pulsed laser deposition (PLD) to evaluate the effects of the laser fluence on their composition, structure, and magnetic properties. Continuum's…

Applied Physics · Physics 2019-05-13 Chengju Yu , Alexander S. Sokolov , Piotr Kulik , Vincent G. Harris

Creating extended, highly homogeneous plasma columns like that required by plasma wakefield accelerators can be a challenge. We study the propagation of ultra-short, TW power ionizing laser pulses in a 10-meter-long rubidium vapor and the…

ZrO2:10%SiO2 thinfilms have been deposited on fused silica substrate by reactive electron beam co-evaporation technique at different oxygen partial pressure. The structural analysis shows tetragonal phase with residual tensile stress in the…

Materials Science · Physics 2020-09-22 S. Jena , R. B. Tokas , S. Thakur , N. K. Sahoo

Pulsed laser deposition (PLD) is a versatile technique for growing epitaxial heterostructures of a wide variety of novel materials combinations. Achieving low-defect layers with atomically sharp interfaces by PLD requires careful management…

Applied Physics · Physics 2021-05-12 Sumner B. Harris , Kamron L. Kopekcy , Chandler W. Cotton , Renato P. Camata

Periodic plasmonic arrays making possible excitations of surface lattice resonances (SLRs) or quasi-resonant features are of great importance for biosensing and other applications. Fabrication of such arrays over a large area is typically…

A theoretical investigation of the ultrafast processes and dynamics of the excited carriers upon irradiation of GaAs with femtosecond (fs) pulsed lasers is performed in conditions that induce material damage and eventually surface…

Materials Science · Physics 2018-12-12 A. Margiolakis , G. D. Tsibidis , K. M. Dani , G. P. Tsironis

We have studied magnetic properties of heavily Mn-doped [(In0.44Ga0.56)0.79Mn0.21]As thin films grown by low-temperature molecular-beam epitaxy (LT-MBE) on InP substrates. The (InGaMn)As with high Mn content (21%) was obtained by decreasing…

Materials Science · Physics 2009-11-10 Shinobu Ohya , Hideo Kobayashi , Masaaki Tanaka

No systematic studies have been carried out on the giant magnetoresistance (GMR) of electrodeposited (ED) Fe-Co/Cu multilayers since the elaboration of a method for the optimization of the Cu layer deposition potential. In this paper, we…

Materials Science · Physics 2016-10-19 B. G. Tóth , L. Péter , L. Pogány , Á. Révész , I. Bakonyi

Pulsed laser deposition from a Nd:YAG laser was employed in production of hundreds of nanometer thick quasicrystalline Ti-Zr-Ni films on glass substrate. The influence of deposition temperature Ts on the structure, morphology and…

Materials Science · Physics 2020-10-26 Valerie Brien , A. Dauscher , P. Weisbecker , J. Ghanbaja , F Machizaud

The palladium-iron-arsenides Ca10(Fe1-xPdxAs)10(Pd3As8) were synthesized by solid state methods and characterized by X-ray powder and single crystal diffraction. The triclinic crystal structure (space group P-1) is isotypic to the homologue…

Superconductivity · Physics 2014-10-29 C. Hieke , J. Lippmann , T. Stürzer , G. M. Friederichs , F. Nitsche , F. Winter , R. Pöttgen , D. Johrendt

The orthorhombic compound NdFe$_2$Al$_{10}$ has been studied by powder and single-crystal neutron diffraction. Below $T_N$ = 3.9 K, the Nd$^{3+}$ magnetic moments order in a double-$k$ [$\mathbf{k}_1 = (0, \frac{3}{4}, 0)$, $\mathbf{k}_2 =…

Strongly Correlated Electrons · Physics 2014-12-31 J. Robert , F. Damay , K. Saito , A. M. Bataille , F. Porcher , G. André , A. Gukasov , J. -M. Mignot , H. Tanida , M. Sera

Thin films of molybendum disulfide grown via thermal atomic layer deposition at low temperatures, suitable for temperature sensible substrates, can be amorphous. To avoid a high temperature post treatment of the whole sample, which can…

An Fe/Au monatomic multilayer, consisting of alternating single Fe and Au layers, has been studied by means of the self-consistent full-potential linearized augmented plane wave method. We show by total energy minimization that this…

Condensed Matter · Physics 2009-10-28 Zhu-Pei Shi , John F. Cooke , Zhenyu Zhang , Barry M. Klein