Experimental realization of linearly polarized X-ray detected ferromagnetic resonance

Abstract We present the first theoretical and experimental evidence of time-resolved dynamic X-ray magnetic linear dichroism (XMLD) measurements of GHz magnetic precessions driven by ferromagnetic resonance in both metallic and insulating thin films. Our findings show a dynamic XMLD in both ferromagnetic Ni80Fe20 and ferrimagnetic Ni0.65Zn0.35Al0.8Fe1.2O4 for different measurement geometries and linear polarizations. A detailed analysis of the observed signals reveals the importance of separating different harmonic components in the dynamic signal in order to identify the XMLD response without the influence of competing contributions. In particular, RF magnetic resonance elicits a large dynamic XMLD response at the fundamental frequency under experimental geometries with oblique x-ray polarization. The geometric range and experimental sensitivity can be improved by isolating the 2ω Fourier component of the dynamic response.These results illustrate the potential of dynamic XMLD and represent a milestone accomplishment towards the study of GHz spin dynamics in systems beyond ferromagnetic order.

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Non-equilibrium spin-dynamics of Gd(0001) studied by time-resolved SHG and magnetic linear dichroism in 4f core-level photoemission

Springer Series in Chemical Physics - Ultrafast Phenomena XVI ◽

10.1007/978-3-540-95946-5_65 ◽

2009 ◽

pp. 200-202

Author(s):

A. Melnikov ◽

H. Prima-Garcia ◽

M. Lisowski ◽

T. Gießel ◽

R. Weber ◽

...

Keyword(s):

Spin Dynamics ◽

Linear Dichroism ◽

Core Level ◽

Time Resolved ◽

Magnetic Linear Dichroism ◽

Non Equilibrium

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Element- and Time-Resolved Measurements of Spin Dynamics Using X-ray Detected Ferromagnetic Resonance

Synchrotron Radiation News ◽

10.1080/08940886.2020.1725796 ◽

2020 ◽

Vol 33 (2) ◽

pp. 12-19

Author(s):

Christoph Klewe ◽

Qian Li ◽

Mengmeng Yang ◽

Alpha T. N’Diaye ◽

David M. Burn ◽

...

Keyword(s):

Ferromagnetic Resonance ◽

Spin Dynamics ◽

Time Resolved ◽

X Ray ◽

Time Resolved Measurements

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X-ray magnetic linear dichroism

Physics Subject Headings (PhySH) ◽

10.29172/6c0dfaf1778e440fb99aad8cbf63c92a ◽

2018 ◽

Keyword(s):

Linear Dichroism ◽

X Ray ◽

Magnetic Linear Dichroism

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Anisotropy of X-ray Absorption Cross Section in CeCoGe3 Single Crystal

Crystals ◽

10.3390/cryst11050544 ◽

2021 ◽

Vol 11 (5) ◽

pp. 544

Author(s):

Andrei Rogalev ◽

Fabrice Wilhelm ◽

Elena Ovchinnikova ◽

Aydar Enikeev ◽

Roman Bakonin ◽

...

Keyword(s):

Cross Section ◽

Absorption Cross Section ◽

Linear Dichroism ◽

X Rays ◽

Absorption Cross ◽

X Ray ◽

Measured Absorption ◽

Linearly Polarized ◽

X Ray Absorption ◽

Absorption Edges

Absorption spectra of two orthogonal linearly polarized x-rays in a single CeCoGe3 crystal were measured at the ID12 beamline of the ESRF for the energies near the K-edges of Ge, Co and near the L23 edges of Ce. The X-ray natural linear dichroism (XNLD) was revealed in the vicinity of all the absorption edges, which indicates a splitting of electronic states in a crystalline field. Mathematical modelling in comparison with experimental data allowed the isotropic and anisotropic parts of atomic absorption cross section in CeCoGe3 to be determined near all measured absorption edges. The calculations also show that the “average” anisotropy of the cross section close to the Ge K-edge revealed in the experiment is less than the partial anisotropic contributions corresponding to Ge atoms in two different Wyckoff positions.

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Single antiferromagnetic axis of Fe in orthorhombic YMn0.5Fe0.5O3 films observed by x-ray magnetic linear dichroism

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2018.11.226 ◽

2019 ◽

Vol 780 ◽

pp. 79-84

Author(s):

Shu Chih Haw ◽

Chang Yang Kuo ◽

Zhiwei Hu ◽

Je Wei Lin ◽

Jenn Min Lee ◽

...

Keyword(s):

Linear Dichroism ◽

X Ray ◽

Magnetic Linear Dichroism

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Determining element-specific magnetocrystalline anisotropies using x-ray magnetic linear dichroism

Applied Physics Letters ◽

10.1063/1.1456542 ◽

2002 ◽

Vol 80 (9) ◽

pp. 1613-1615 ◽

Cited By ~ 18

Author(s):

S. S. Dhesi ◽

G. van der Laan ◽

E. Dudzik

Keyword(s):

Linear Dichroism ◽

X Ray ◽

Magnetic Linear Dichroism

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Photoelectron Angular Distributions Of Ultrathin NI/CU(001) Films

MRS Proceedings ◽

10.1557/proc-437-39 ◽

1996 ◽

Vol 437 ◽

Author(s):

G.J. Mankey ◽

K. Subramanian ◽

R.L. Stockbauer ◽

R.L. Kurtz

Keyword(s):

Photoelectron Spectroscopy ◽

Periodic Potential ◽

Electronic States ◽

Linear Dichroism ◽

Angular Distributions ◽

X Ray ◽

Photoelectron Diffraction ◽

Ellipsoidal Mirror ◽

Magnetic Linear Dichroism ◽

Photoelectron Angular Distributions

AbstractWe present measurements of the evolution with film thickness of the 3d electronic states at the Fermi energy of ultrathin Ni films. The morphology and thickness of the films is determined from x-ray photoelectron spectroscopy. x-ray photoelectron diffraction and x-ray magnetic linear dichroism using synchrotron radiation. Photoelectron angular distributions were measured using an ellipsoidal mirror analyzer. Even at submonolayer Ni coverages, the 3d electronic states exhibit bulk-like properties. This is attributed to the short screening length of electrons in metals, the localization of the 3d electrons, the similarity of the Ni and Cu ion cores, and finally the interaction with the underlying fcc periodic potential.

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