4.6 Article

Heat-conserving three-temperature model for ultrafast demagnetization in nickel

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Physics, Applied

Role of primary and secondary processes in the ultrafast spin dynamics of nickel

Martin Stiehl et al.

Summary: This study investigates the effects of pump photon energy on ultrafast demagnetization dynamics in ferromagnetic nickel, revealing that magnetization dynamics primarily depend on absorbed energy rather than pump photon energy. Stark differences exist between optically excited electronic distributions and demagnetization dynamics, while the measured dynamics can be reproduced using a model based on local temperatures.

APPLIED PHYSICS LETTERS (2022)

Article Materials Science, Multidisciplinary

Realistic first-principles calculations of the magnetocaloric effect: applications to hcp Gd

R. Martinho Vieira et al.

Summary: The study presents an efficient computational approach for evaluating the entropy change of magnetocaloric materials, with a focus on hcp Gd. It demonstrates the importance of the mixed-scheme for magnetic Monte Carlo simulations and highlights the dominant contribution of magnetism to the entropy change. The calculated total entropy change is in agreement with experimental measurements at room temperature.

MATERIALS RESEARCH LETTERS (2022)

Article Materials Science, Multidisciplinary

Mechanism of femtosecond laser induced ultrafast demagnetization in ultrathin film magnetic multilayers

Santanu Pan et al.

Summary: The study demonstrates the relationship between the decay time of femtosecond magnetization and the thickness of ultrathin ferromagnetic films. It reveals that the decay time varies non-monotonically with the film thickness, with higher spin fluctuation observed at higher electron to Curie temperature ratio. This understanding is crucial for advancing fundamental magnetism and potential applications in spintronic devices.

JOURNAL OF MATERIALS SCIENCE (2022)

Article Physics, Multidisciplinary

Angular Momentum Transfer via Relativistic Spin-Lattice Coupling from First Principles

Sergiy Mankovsky et al.

Summary: The transfer and control of angular momentum is crucial for spintronic applications. A scheme to calculate fully relativistic spin-lattice coupling parameters from first principles is presented, contributing to the understanding of angular momentum transfer between spin and lattice degrees of freedom.

PHYSICAL REVIEW LETTERS (2022)

Article Physics, Multidisciplinary

Intrinsic energy flow in laser-excited 3d ferromagnets

Daniela Zahn et al.

Summary: This study investigates the intrinsic energy flow in 3d ferromagnets cobalt (Co) and iron (Fe) through femtosecond electron diffraction experiments, energy-conserving atomistic spin dynamics simulations, and ab initio calculations. The results reveal significant influence of magnetization dynamics on lattice dynamics, with the spin system acting as the main heat sink in the first hundreds of femtoseconds.

PHYSICAL REVIEW RESEARCH (2022)

Article Materials Science, Multidisciplinary

Ultrafast magnetization dynamics in the half-metallic Heusler alloy Co2FeAl

R. S. Malik et al.

Summary: This report investigates optically induced ultrafast magnetization dynamics in the Heusler alloy Co2FeAl, finding that the demagnetization time is independent of structural order and the magnetization recovery time correlates strongly with the Gilbert damping parameter. The remagnetization process in Co2FeAl is dominated by magnon dynamics, with potential general applicability.

PHYSICAL REVIEW B (2021)

Article Physics, Multidisciplinary

Lattice dynamics and ultrafast energy flow between electrons, spins, and phonons in a 3d ferromagnet

Daniela Zahn et al.

Summary: The ultrafast dynamics of magnetic order in a ferromagnet are governed by the interplay between electronic, magnetic, and lattice degrees of freedom. The spin system acts as the dominant heat sink in the initial few hundred femtoseconds.

PHYSICAL REVIEW RESEARCH (2021)

Article Multidisciplinary Sciences

Optical inter-site spin transfer probed by energy and spin-resolved transient absorption spectroscopy

Felix Willems et al.

NATURE COMMUNICATIONS (2020)

Article Physics, Multidisciplinary

Ultrafast Electron Correlations and Memory Effects at Work: Femtosecond Demagnetization in Ni

Shree Ram Acharya et al.

PHYSICAL REVIEW LETTERS (2020)

Article Multidisciplinary Sciences

The role of ultrafast magnon generation in the magnetization dynamics of rare-earth metals

B. Frietsch et al.

SCIENCE ADVANCES (2020)

Article Materials Science, Multidisciplinary

Theory of out-of-equilibrium electron and phonon dynamics in metals after femtosecond laser excitation

Ulrike Ritzmann et al.

PHYSICAL REVIEW B (2020)

Article Materials Science, Multidisciplinary

General method for atomistic spin-lattice dynamics with first-principles accuracy

Johan Hellsvik et al.

PHYSICAL REVIEW B (2019)

Article Materials Science, Multidisciplinary

Realistic finite temperature simulations of magnetic systems using quantum statistics

Lars Bergqvist et al.

PHYSICAL REVIEW MATERIALS (2018)

Article Physics, Applied

Laser Controlled Spin Dynamics of Ferromagnetic Thin Film from Femtosecond to Nanosecond Timescale

Sucheta Mondal et al.

PHYSICAL REVIEW APPLIED (2018)

Article Physics, Condensed Matter

Advanced capabilities for materials modelling with QUANTUM ESPRESSO

P. Giannozzi et al.

JOURNAL OF PHYSICS-CONDENSED MATTER (2017)

Article Physics, Multidisciplinary

Electron-Phonon Coupling and Energy Flow in a Simple Metal beyond the Two-Temperature Approximation

Lutz Waldecker et al.

PHYSICAL REVIEW X (2016)

Article Nanoscience & Nanotechnology

First principles phonon calculations in materials science

Atsushi Togo et al.

SCRIPTA MATERIALIA (2015)

Article Physics, Applied

Thermodynamically self-consistent non-stochastic micromagnetic model for the ferromagnetic state

Mykola Dvornik et al.

APPLIED PHYSICS LETTERS (2014)

Article Materials Science, Multidisciplinary

Spin-lattice-electron dynamics simulations of magnetic materials

Pui-Wai Ma et al.

PHYSICAL REVIEW B (2012)

Article Physics, Multidisciplinary

Anharmonicity and Quantum Effects in Thermal Expansion of an Invar Alloy

Toshihiko Yokoyama et al.

PHYSICAL REVIEW LETTERS (2011)

Article Chemistry, Physical

Explaining the paradoxical diversity of ultrafast laser-induced demagnetization

B. Koopmans et al.

NATURE MATERIALS (2010)

Article Physics, Fluids & Plasmas

Temperature for a dynamic spin ensemble

Pui-Wai Ma et al.

PHYSICAL REVIEW E (2010)

Article Physics, Multidisciplinary

Superdiffusive Spin Transport as a Mechanism of Ultrafast Demagnetization

M. Battiato et al.

PHYSICAL REVIEW LETTERS (2010)

Article Materials Science, Multidisciplinary

Ultrafast demagnetization of ferromagnetic transition metals: The role of the Coulomb interaction

Michael Krauss et al.

PHYSICAL REVIEW B (2009)

Article Materials Science, Multidisciplinary

Dynamics of electron-magnon interaction and ultrafast demagnetization in thin iron films

E. Carpene et al.

PHYSICAL REVIEW B (2008)

Article Materials Science, Multidisciplinary

Neutron scattering measurements of phonons in nickel at elevated temperatures

M. Kresch et al.

PHYSICAL REVIEW B (2007)

Article Materials Science, Multidisciplinary

Exchange coupling in transition-metal ferromagnets

S Frota-Pessôa et al.

PHYSICAL REVIEW B (2000)