Hard X-ray Resonant Inelastic X-ray Scattering at the Advanced Photon Source

Kim, Yong Baek; Hill, J. P.; Kim, Jungho; Casa, D.

doi:10.1080/08940886.2012.700841

Cited by 4 publications

(3 citation statements)

References 28 publications

(22 reference statements)

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“…RIXS has limited energy resolution of ∼10 meV (L-edge resonance) that only applies to materials with large magnetic exchange couplings. 800 , 801 These wavelengths are too long to cover the entire Brillouin zone in the reciprocal space, for example, of iron based and cuprate superconductors. 802 K-edge RIXS uses shorter wavelength, but the energy resolution is much worse.…”

Section: Spin Excitations and Topological Propertiesmentioning

confidence: 99%

“…However, current RIXS also has drawbacks due to the trade-off among energy resolution, flux, and spatial resolution in synchrotron light sources, which are fundamentally limited by brilliance. RIXS has limited energy resolution of ∼10 meV (L-edge resonance) that only applies to materials with large magnetic exchange couplings. , These wavelengths are too long to cover the entire Brillouin zone in the reciprocal space, for example, of iron based and cuprate superconductors . K-edge RIXS uses shorter wavelength, but the energy resolution is much worse .…”

Section: Spin Excitations and Topological Propertiesmentioning

confidence: 99%

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The Magnetic Genome of Two-Dimensional van der Waals Materials

et al. 2022

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Magnetism in two-dimensional (2D) van der Waals (vdW) materials has recently emerged as one of the most promising areas in condensed matter research, with many exciting emerging properties and significant potential for applications ranging from topological magnonics to low-power spintronics, quantum computing, and optical communications. In the brief time after their discovery, 2D magnets have blossomed into a rich area for investigation, where fundamental concepts in magnetism are challenged by the behavior of spins that can develop at the single layer limit. However, much effort is still needed in multiple fronts before 2D magnets can be routinely used for practical implementations. In this comprehensive review, prominent authors with expertise in complementary fields of 2D magnetism ( i.e. , synthesis, device engineering, magneto-optics, imaging, transport, mechanics, spin excitations, and theory and simulations) have joined together to provide a genome of current knowledge and a guideline for future developments in 2D magnetic materials research.

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Section: Spin Excitations and Topological Propertiesmentioning

confidence: 99%

Section: Spin Excitations and Topological Propertiesmentioning

confidence: 99%

The Magnetic Genome of Two-Dimensional van der Waals Materials

et al. 2022

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“…It has now been clearly demonstrated that RIXS is not only suitable for studying charge and orbital excitations, but it is also a powerful tool to probe magnetic dynamics. With RIXS at the L-edge of the magnetic elements, the magnetic dispersion curves were mapped out on various transition metal compounds such as cuprates [2] and iridates [3]. Although the leading term of the photon-electron interaction does not directly couple to the spin, the strong spin-orbit coupling (SOC) of the core level p states accessed at the L-edge makes direct spin-flip scattering possible in the RIXS process [4,5].…”

mentioning

confidence: 99%

Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering

Liu¹,

Dean²,

Liu³

et al. 2015

J. Phys.: Condens. Matter

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Abstract. Resonant inelastic X-ray scattering (RIXS) at the L-edge of transition metal elements is now commonly used to probe single magnon excitations. Here we show that single magnon excitations can also be measured with RIXS at the K-edge of the surrounding ligand atoms when the center heavy metal elements have strong spin-orbit coupling. This is demonstrated with oxygen K-edge RIXS experiments on the perovskite Sr 2 IrO 4 , where low energy peaks from single magnon excitations were observed. This new application of RIXS has excellent potential to be applied to a wide range of magnetic systems based on heavy elements, for which the L-edge RIXS energy resolutions in the hard X-ray region is usually poor.

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Goniometer-based femtosecond crystallography with X-ray free electron lasers

Cohen

Soltis

González

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

128

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The emerging method of femtosecond crystallography (FX) may extend the diffraction resolution accessible from small radiationsensitive crystals and provides a means to determine catalytically accurate structures of acutely radiation-sensitive metalloenzymes. Automated goniometer-based instrumentation developed for use at the Linac Coherent Light Source enabled efficient and flexible FX experiments to be performed on a variety of sample types. In the case of rod-shaped Cpl hydrogenase crystals, only five crystals and about 30 min of beam time were used to obtain the 125 still diffraction patterns used to produce a 1.6-Å resolution electron density map. For smaller crystals, high-density grids were used to increase sample throughput; 930 myoglobin crystals mounted at random orientation inside 32 grids were exposed, demonstrating the utility of this approach. Screening results from cryocooled crystals of β 2 -adrenoreceptor and an RNA polymerase II complex indicate the potential to extend the diffraction resolution obtainable from very radiation-sensitive samples beyond that possible with undulator-based synchrotron sources.femtosecond diffraction | crystallography | XFEL | structural biology U sing extremely bright, short-timescale X-ray pulses produced by X-ray free-electron lasers (XFELs), femtosecond crystallography (FX) is an emerging method that expands the structural information accessible from very small or very radiation-sensitive macromolecular crystals. Central to this method is the "diffraction before destruction" (1) process in which a still diffraction image is produced by a single X-ray pulse before significant radiation-induced electronic and atomic rearrangements occur within the crystal (1-3). At the Linac Coherent Light Source (LCLS) at SLAC, a single ∼50-fs-long X-ray pulse can expose a crystal to as many X-ray photons as a typical synchrotron beam line produces in about a second. Exposing small crystals to these intense ultrashort pulses circumvents the dose limitations of conventional X-ray diffraction experiments (4) and may produce useful data to resolutions beyond what is achievable at synchrotrons (5). This innovation provides a pathway to obtain atomic information from proteins that only form micrometer-to nanometer-sized crystals, such as many membrane proteins and large multiprotein complexes. Moreover, XFELs enable "diffraction before reduction" data collection to address another major challenge in structural enzymology by providing a means to determine catalytically accurate structures of acutely radiation-sensitive metalloenzyme active sites (6), such as high-valency reaction intermediates that may be significantly photoreduced during a single X-ray exposure at a synchrotron, even at very small doses (7-11). Furthermore, the use of short (tens of femtoseconds) X-ray pulses further complements the structural characterization of biochemical reaction processes by providing access to a time domain two to three orders of magnitude faster (12, 13) than currently accessible using synchrotro...

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Hard X-ray Resonant Inelastic X-ray Scattering at the Advanced Photon Source

Cited by 4 publications

References 28 publications

The Magnetic Genome of Two-Dimensional van der Waals Materials

The Magnetic Genome of Two-Dimensional van der Waals Materials

Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering

Goniometer-based femtosecond crystallography with X-ray free electron lasers

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Hard X-ray Resonant Inelastic X-ray Scattering at the Advanced Photon Source

Cited by 4 publications

References 28 publications

The Magnetic Genome of Two-Dimensional van der Waals Materials

The Magnetic Genome of Two-Dimensional van der Waals Materials

Probing single magnon excitations in Sr2IrO4 using O K-edge resonant inelastic x-ray scattering

Goniometer-based femtosecond crystallography with X-ray free electron lasers

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Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering