MERIX—Next generation medium energy resolution inelastic X-ray scattering instrument at the APS

Shvyd’ko, Yu. V.; Hill, J. P.; Burns, C. A.; Coburn, D. S.; Brajuskovic, B.; Casa, D.; Goetze, Kurt; Gög, T.; Khachatryan, Ruben; Kim, J.-H.; Kodituwakku, C. N.; Ramanathan, Mala; Roberts, Timothy K.; Said, Ayman; Sinn, H.; Shu, Deming; Stoupin, Stanislav; Upton, M. H.; Wieczorek, Michael; Yavaş, Hasan

doi:10.1016/j.elspec.2012.09.003

Cited by 65 publications

(51 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One often tries to find a good compromise between detection efficiency, which is dictated by the geometry employed, and overall energy resolution, that is a convolution of several contributions . The latter depends mainly on the intrinsic width of the analyzer Bragg diffraction (given by dynamical diffraction theory), the source size, and how close to backscattering the analyzer is positioned, with other contributions coming from crystal imperfections, broadening due to the stress induced by bending, and errors in the spherical/cylindrical bending radius ,,. In certain cases, the energy bandwidth of the incoming radiation also plays a role in the total resolution, as in the case of resonant XES and HERFD XAS experiments.…”

Section: Instrumentationmentioning

confidence: 99%

A Practical Guide to High‐resolution X‐ray Spectroscopic Measurements and their Applications in Bioinorganic Chemistry

Kowalska

Lima

Pollock

et al. 2016

Israel Journal of Chemistry

View full text Add to dashboard Cite

The bioinorganic chemistry community has had a long history of utilizing a diverse range of spectroscopic techniques to obtain detailed geometric and electronic structural insights into metalloprotein active sites. In recent years, the development of beamlines optimized for high‐resolution X‐ray spectroscopy has provided novel tools for the elucidation of biological active site structures. These methods include both non‐resonant and resonant X‐ray emission spectroscopy. Herein, we briefly introduce both X‐ray absorption and X‐ray emission spectroscopy, and the added information that can be obtained through high‐resolution measurements. The information content of each spectroscopic approach, as well as the required instrumentation, is discussed. Applications of these methods in bioinorganic chemistry are highlighted.

show abstract

Section: Instrumentationmentioning

confidence: 99%

A Practical Guide to High‐resolution X‐ray Spectroscopic Measurements and their Applications in Bioinorganic Chemistry

Kowalska

Lima

Pollock

et al. 2016

Israel Journal of Chemistry

View full text Add to dashboard Cite

show abstract

“…26 The single-crystal sample was synthesized by a boro-thermal method as described in detail elsewhere. 27 The sample is mounted in a closed-cycle He cryostat.…”

Section: Methodsmentioning

confidence: 99%

Spin-split conduction band in EuB6and tuning of half-metallicity with external stimuli

Kim

Lee

et al. 2013

Phys. Rev. B

View full text Add to dashboard Cite

We report Eu L3-edge resonant inelastic x-ray scattering (RIXS) investigation of the electronic structure of EuB6. We observe that the RIXS spectral weight around 1.1 eV increases dramatically when the system is cooled below the ferromagnetic ordering temperature and follows the magnetic order parameter. This spectral feature is attributed to the inter-site excitation from the local 4f orbital to the spin-split 5d orbital on the neighboring site, illustrating the essential role of exchange splitting of the conducting electrons. Based on our density functional theory calculations and the RIXS data, EuB6 at low temperature can be consistently described with a semi-metallic electronic structure with incomplete spin-polarization. We propose that half-metallicity in EuB6 can be achieved utilizing the strong tunability of the electronic structure against gate voltage, strain, and magnetic field.

show abstract

“…Resolving these widths and the larger feature widths in the SrCuO 2 spectrum illustrates the femtosecond time scale on which local multiplet excitations can persist and interact meaningfully with the surrounding many-body environment. Several upcoming soft X-ray spectrometers are anticipated to reveal momentum dispersion in the critically important "thermal1" resolution regime (δE ∼ k B T near or below room temperature) [50][51][52][53][54][55], and superior energy resolution can also now be achieved with with hard X-rays [56,57] for certain specific cases such as the iridium L-edge.…”

Section: A New Regime Of Energy Resolutionmentioning

confidence: 99%

Extending resonant inelastic X-ray scattering to the extreme ultraviolet

et al. 2015

View full text Add to dashboard Cite

In resonant inelastic X-ray scattering (RIXS), core hole resonance modes are used to enhance coupling between photons and low energy electronic degrees of freedom. Resonating with shallow core holes accessed in the extreme ultraviolet (EUV) can provide greatly improved energy resolution at standard resolving power, but has been found to often yield qualitatively different spectra than similar measurements performed with higher energy X-rays. This paper uses experimental data and multiplet-based numerical simulations for the M-edges of Co-, Ni-, and Cu-based Mott insulators to review the properties that distinguish EUV RIXS from more commonly performed higher energy measurements. Key factors such as the origin of the strong EUV elastic line and advantages of EUV spectral functions over soft X-ray RIXS for identifying intrinsic excitation line shapes are discussed.

show abstract

MERIX—Next generation medium energy resolution inelastic X-ray scattering instrument at the APS

Cited by 65 publications

References 31 publications

A Practical Guide to High‐resolution X‐ray Spectroscopic Measurements and their Applications in Bioinorganic Chemistry

A Practical Guide to High‐resolution X‐ray Spectroscopic Measurements and their Applications in Bioinorganic Chemistry

Spin-split conduction band in EuB6and tuning of half-metallicity with external stimuli

Extending resonant inelastic X-ray scattering to the extreme ultraviolet

Contact Info

Product

Resources

About