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

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

scholarly journals Experimental realization of linearly polarized X-ray detected ferromagnetic resonance

2021 ◽  
Author(s):  
Christoph Klewe ◽  
Satoru Emori ◽  
Qian Li ◽  
Mengmeng Yang ◽  
Benjamin A. Gray ◽  
...  
Keyword(s):  
Ferromagnetic Resonance ◽  
Spin Dynamics ◽  
Linear Dichroism ◽  
Fourier Component ◽  
Time Resolved ◽  
Experimental Realization ◽  
X Ray ◽  
Linearly Polarized ◽  
Magnetic Linear Dichroism ◽  
Harmonic Components

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.

scholarly journals Soft X-ray lasing at 519.7 Å in a Recombining Z-pinch Plasma

1997 ◽  
Vol 15 (4) ◽  
pp. 589-595 ◽  
Author(s):  
E. Eberl ◽  
T. Wagner ◽  
J. Jacoby ◽  
A. Tauschwitz ◽  
D.H.H. Hoffmann
Keyword(s):  
Discharge Current ◽  
Line Intensity ◽  
Gas Pressure ◽  
Time Resolved ◽  
X Ray ◽  
Pinch Plasma ◽  
Gain Length ◽  
Z Pinch ◽  
Time Resolved Measurements

This paper is reviewing the amplification of XUV radiation at 519.7 and 498.5 Å with a gain-length product of 2.5 and 2.2 for the 4f-3d and 4d-3p transition in an oxygen Z-pinch plasma. Time resolved measurements of the O VI (519.7 Å) transition were performed and the dependence of the line intensity on the discharge current and initial gas pressure is reported.

Time-resolved measurements of x-ray damage to optical coatings

1997 ◽  
Vol 81 (3) ◽  
pp. 1184-1191 ◽  
Author(s):  
R. C. Elton ◽  
J. Grun ◽  
P. G. Burkhalter ◽  
H. R. Burris ◽  
B. H. Ripin ◽  
...  
Keyword(s):  
Optical Coatings ◽  
Time Resolved ◽  
X Ray ◽  
Time Resolved Measurements

Time-resolved measurements of short-wavelength fluorescence from x-ray-excited ions

1987 ◽  
Vol 12 (9) ◽  
pp. 663 ◽  
Author(s):  
H. C. Kapteyn ◽  
M. M. Murnane ◽  
R. W. Falcone
Keyword(s):  
Short Wavelength ◽  
Time Resolved ◽  
X Ray ◽  
Time Resolved Measurements

scholarly journals Laser-driven implosion studies using the soft X-ray emission measurements

1988 ◽  
Vol 6 (2) ◽  
pp. 321-326 ◽  
Author(s):  
S. Denus ◽  
H. Fiedorowicz ◽  
K. Jeziak ◽  
P. Parys ◽  
W. Pawłowicz ◽  
...  
Keyword(s):  
Ablation Rate ◽  
New Method ◽  
Time Resolved ◽  
X Ray ◽  
Ablation Pressure ◽  
Heat Front ◽  
Time Resolved Measurements

The mass ablation rate and ablation pressure on laser-irradiated spherical microshells were measured using the space-resolved X-ray spectroscopy. A new method for the study of the ablation by means of the Doppler shifted X-ray images is proposed. The time-resolved measurements of X-ray emission from layered microtargets allow us to determine the heat front penetration through the microshell wall.

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