Transmission x-ray microscopy at low temperatures: Irregular supercurrent flow at small length scales

Simmendinger, Julian; Ruoß, Stephen; Stahl, Claudia; Weigand, Markus; Gräfe, Joachim; Schütz, Gisela; Albrecht, J.

doi:10.1103/physrevb.97.134515

Cited by 12 publications

(19 citation statements)

References 33 publications

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“…This approach has been successfully applied recently [30] but it restricts the lateral dimensions of the sample to a few microns and it also limits the means for successive nanofabrication. An approach allowing for more general sample designs is utilizing a combination of mechanical grinding and FIB milling to create local areas of soft x-ray transparency in an extended bulk substrate [31,32]. By adopting this approach to TR-STXM, spin waves in an extended YIG thin film have been recorded with the main focus being on the excitation and imaging of spin waves with wavelengths below 250 nm.…”

Section: Introductionmentioning

confidence: 99%

Direct observation of coherent magnons with suboptical wavelengths in a single-crystalline ferrimagnetic insulator

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Direct observation of coherent magnons with suboptical wavelengths in a single-crystalline ferrimagnetic insulator

et al. 2019

Self Cite

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“…The XMCD technique has also been used for the investigation of recording of magnetic flux patterns in YBCO in an adjacent Permalloy sensor layer [79,80]. Figure 9a shows a schematic of a heterostructure investigated by transmission X-ray microscopy, which consists of the layer of interest, i.e., optimally doped YBCO film epitaxially grown on single crystalline SrTiO 3 (001) (STO) with Py as a sensor layer on top.…”

Section: Imprinting Of Inhomogeneous Magnetic Landscapes In Permalloymentioning

confidence: 99%

Magnetic Recording of Superconducting States

Shaw

Alvarez

Brisbois

et al. 2019

Metals

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Local polarization of magnetic materials has become a well-known and widely used method for storing binary information. Numerous applications in our daily life such as credit cards, computer hard drives, and the popular magnetic drawing board toy, rely on this principle. In this work, we review the recent advances on the magnetic recording of inhomogeneous magnetic landscapes produced by superconducting films. We summarize the current compelling experimental evidence showing that magnetic recording can be applied for imprinting in a soft magnetic layer the flux trajectory taking place in a superconducting layer at cryogenic temperatures. This approach enables the ex situ observation at room temperature of the imprinted magnetic flux landscape obtained below the critical temperature of the superconducting state. The undeniable appeal of the proposed technique lies in its simplicity and the potential to improve the spatial resolution, possibly down to the scale of a few vortices.

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“…Another approach to fabricate soft X-ray transparent samples is to use focused gallium ion beam (Ga FIB) milling in combination with mechanical grinding to remove substrate material until the samples are transparent in the soft X-ray regime [13][14][15][16][17][18]. While this technique marks an important milestone for X-ray transmission experiments, it is at the same time severely limited by the relatively low milling speed of the Ga FIBs used.…”

Section: Introductionmentioning

confidence: 99%

Xenon Plasma Focused Ion Beam Milling for Obtaining Soft X-ray Transparent Samples

et al. 2021

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We employ xenon (Xe) plasma focused ion beam (PFIB) milling to obtain soft X-ray transparent windows out of bulk samples. The use of a Xe PFIB allows for the milling of thin windows (several 100 nm thick) with areas of the order of 100 µm × 100 µm into bulk substrates. In addition, we present an approach to empirically determine the transmission level of such windows during fabrication by correlating their electron and soft X-ray transparencies. We perform scanning transmission X-ray microscopy (STXM) imaging on a sample obtained by Xe PFIB milling to demonstrate the conceptual feasibility of the technique. Our thinning approach provides a fast and simplified method for facilitating soft X-ray transmission measurements of epitaxial samples and it can be applied to a variety of different sample systems and substrates that are otherwise not accessible.

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Transmission x-ray microscopy at low temperatures: Irregular supercurrent flow at small length scales

Cited by 12 publications

References 33 publications

Direct observation of coherent magnons with suboptical wavelengths in a single-crystalline ferrimagnetic insulator

Direct observation of coherent magnons with suboptical wavelengths in a single-crystalline ferrimagnetic insulator

Magnetic Recording of Superconducting States

Xenon Plasma Focused Ion Beam Milling for Obtaining Soft X-ray Transparent Samples

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