Extracting the Dynamic Magnetic Contrast in Time-Resolved X-Ray Transmission Microscopy

Taddäus Schaffers; T. Feggeler; Santa Pile; R. Meckenstock; Martin Buchner; D. Spoddig; Verena Ney; M. Farle; H. Wende; S. Wintz; M. Weigand; Hendrik Ohldag; K. Ollefs; Andreas Ney

doi:10.3390/nano9070940

Extracting the Dynamic Magnetic Contrast in Time-Resolved X-Ray Transmission Microscopy

Taddäus Schaffers, T. Feggeler, Santa Pile, R. Meckenstock, Martin Buchner, D. Spoddig, Verena Ney, M. Farle, H. Wende, S. Wintz, M. Weigand, Hendrik Ohldag, K. Ollefs, Andreas Ney

Department of Solid State Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Using a time-resolved detection scheme in scanning transmission X-ray microscopy (STXM), we measured element resolved ferromagnetic resonance (FMR) at microwave frequencies up to 10 GHz and a spatial resolution down to 20 nm at two different synchrotrons. We present different methods to separate the contribution of the background from the dynamic magnetic contrast based on the X-ray magnetic circular dichroism (XMCD) effect. The relative phase between the GHz microwave excitation and the X-ray pulses generated by the synchrotron, as well as the opening angle of the precession at FMR can be quantified. A detailed analysis for homogeneous and inhomogeneous magnetic excitations demonstrates that the dynamic contrast indeed behaves as the usual XMCD effect. The dynamic magnetic contrast in time-resolved STXM has the potential be a powerful tool to study the linear and nonlinear, magnetic excitations in magnetic micro- and nano-structures with unique spatial-temporal resolution in combination with element selectivity.

Original language	English
Article number	940
Pages (from-to)	1-13
Number of pages	13
Journal	Nanomaterials
Volume	9
DOIs	https://doi.org/10.3390/nano9070940
Publication status	Published - 2019

Fields of science

210006 Nanotechnology
103 Physics, Astronomy
103011 Semiconductor physics
103018 Materials physics
202032 Photovoltaics
103009 Solid state physics
103017 Magnetism

JKU Focus areas

Sustainable Development: Responsible Technologies and Management

Access to Document

10.3390/nano9070940

Cite this

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title = "Extracting the Dynamic Magnetic Contrast in Time-Resolved X-Ray Transmission Microscopy",

abstract = "Using a time-resolved detection scheme in scanning transmission X-ray microscopy (STXM), we measured element resolved ferromagnetic resonance (FMR) at microwave frequencies up to 10 GHz and a spatial resolution down to 20 nm at two different synchrotrons. We present different methods to separate the contribution of the background from the dynamic magnetic contrast based on the X-ray magnetic circular dichroism (XMCD) effect. The relative phase between the GHz microwave excitation and the X-ray pulses generated by the synchrotron, as well as the opening angle of the precession at FMR can be quantified. A detailed analysis for homogeneous and inhomogeneous magnetic excitations demonstrates that the dynamic contrast indeed behaves as the usual XMCD effect. The dynamic magnetic contrast in time-resolved STXM has the potential be a powerful tool to study the linear and nonlinear, magnetic excitations in magnetic micro- and nano-structures with unique spatial-temporal resolution in combination with element selectivity.",

author = "Tadd{\"a}us Schaffers and T. Feggeler and Santa Pile and R. Meckenstock and Martin Buchner and D. Spoddig and Verena Ney and M. Farle and H. Wende and S. Wintz and M. Weigand and Hendrik Ohldag and K. Ollefs and Andreas Ney",

year = "2019",

doi = "10.3390/nano9070940",

language = "English",

volume = "9",

pages = "1--13",

journal = "Nanomaterials",

issn = "2079-4991",

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TY - JOUR

T1 - Extracting the Dynamic Magnetic Contrast in Time-Resolved X-Ray Transmission Microscopy

AU - Schaffers, Taddäus

AU - Feggeler, T.

AU - Pile, Santa

AU - Meckenstock, R.

AU - Buchner, Martin

AU - Spoddig, D.

AU - Ney, Verena

AU - Farle, M.

AU - Wende, H.

AU - Wintz, S.

AU - Weigand, M.

AU - Ohldag, Hendrik

AU - Ollefs, K.

AU - Ney, Andreas

PY - 2019

Y1 - 2019

N2 - Using a time-resolved detection scheme in scanning transmission X-ray microscopy (STXM), we measured element resolved ferromagnetic resonance (FMR) at microwave frequencies up to 10 GHz and a spatial resolution down to 20 nm at two different synchrotrons. We present different methods to separate the contribution of the background from the dynamic magnetic contrast based on the X-ray magnetic circular dichroism (XMCD) effect. The relative phase between the GHz microwave excitation and the X-ray pulses generated by the synchrotron, as well as the opening angle of the precession at FMR can be quantified. A detailed analysis for homogeneous and inhomogeneous magnetic excitations demonstrates that the dynamic contrast indeed behaves as the usual XMCD effect. The dynamic magnetic contrast in time-resolved STXM has the potential be a powerful tool to study the linear and nonlinear, magnetic excitations in magnetic micro- and nano-structures with unique spatial-temporal resolution in combination with element selectivity.

AB - Using a time-resolved detection scheme in scanning transmission X-ray microscopy (STXM), we measured element resolved ferromagnetic resonance (FMR) at microwave frequencies up to 10 GHz and a spatial resolution down to 20 nm at two different synchrotrons. We present different methods to separate the contribution of the background from the dynamic magnetic contrast based on the X-ray magnetic circular dichroism (XMCD) effect. The relative phase between the GHz microwave excitation and the X-ray pulses generated by the synchrotron, as well as the opening angle of the precession at FMR can be quantified. A detailed analysis for homogeneous and inhomogeneous magnetic excitations demonstrates that the dynamic contrast indeed behaves as the usual XMCD effect. The dynamic magnetic contrast in time-resolved STXM has the potential be a powerful tool to study the linear and nonlinear, magnetic excitations in magnetic micro- and nano-structures with unique spatial-temporal resolution in combination with element selectivity.

U2 - 10.3390/nano9070940

DO - 10.3390/nano9070940

M3 - Article

SN - 2079-4991

VL - 9

SP - 1

EP - 13

JO - Nanomaterials

JF - Nanomaterials

M1 - 940

ER -