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1. Conduction electron spin resonance in the α -Yb 1−x Fe x AlB 4 (0 ⩽ x ⩽ 0.50) and α -LuAlB 4 compounds

   https://doi.org/10.1088/0953-8984/27/25/255601  

   Holanda, L. M. ; Lesseux, G. G. ; Magnavita, E. T. ; Ribeiro, R. A. ; Nakatsuji, S. ; Kuga, K. ; Fisk, Z. ; Oseroff, S. B. ; Urbano, R. R. ; Rettori, C. ; et al ( June 2015 , Journal of Physics: Condensed Matter)
2. Density functional theory investigation of the interaction of water with α−Al2O3 and α−Fe2O3 (11̲02 ) surfaces: Implications for surface reactivity

   https://doi.org/10.1103/PhysRevB.83.125407  

   Aboud, Shela ; Wilcox, Jennifer ; Brown, Gordon E. ( March 2011 , Physical Review B)
3. Elemental Abundances in M31: Individual and Coadded Spectroscopic [Fe/H] and [α/Fe] throughout the M31 Halo with SPLASH

   https://doi.org/10.3847/1538-4357/acd5d3  

   Wojno, J. Leigh ; Gilbert, Karoline M. ; Kirby, Evan N. ; Escala, Ivanna ; Guhathakurta, Puragra ; Beaton, Rachael L. ; Kalirai, Jason ; Chiba, Masashi ; Majewski, Steven R. ( June 2023 , The Astrophysical Journal)

   We present spectroscopic chemical abundances of red giant branch stars in Andromeda (M31), using medium-resolution (R∼ 6000) spectra obtained via the Spectroscopic and Photometric Landscape of Andromeda’s Stellar Halo survey. In addition to individual chemical abundances, we coadd low signal-to-noise ratio spectra of stars to obtain a high enough signal to measure average [Fe/H] and [α/Fe] abundances. We obtain individual and coadded measurements for [Fe/H] and [α/Fe] for M31 halo stars, covering a range of 9–180 kpc in projected radius from the center of M31. With these measurements, we greatly increase the number of outer halo (R_proj> 50 kpc) M31 stars with spectroscopic [Fe/H] and [α/Fe], adding abundance measurements for 45 individual stars and 33 coadds from a pool of an additional 174 stars. We measure the spectroscopic metallicity ([Fe/H]) gradient, finding a negative radial gradient of −0.0084 ± 0.0008 for all stars in the halo, consistent with gradient measurements obtained using photometric metallicities. Using the first measurements of [α/Fe] for M31 halo stars covering a large range of projected radii, we find a positive gradient (+0.0027 ± 0.0005) in [α/Fe] as a function of projected radius. We also explore the distribution in [Fe/H]–[α/Fe] space as a function of projected radius for both individual and coadded measurements in the smooth halo, and compare these measurements to those stars potentially associated with substructure. These spectroscopic abundance distributions add to existing evidence that M31 has had an appreciably different formation and merger history compared to our own Galaxy.

    

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4. Measurement of spin mixing conductance in Ni 81 Fe 19 / α -W and Ni 81 Fe 19 / β -W heterostructures via ferromagnetic resonance

   https://doi.org/10.1063/1.5099913  

   Cao, W. ; Liu, J. ; Zangiabadi, A. ; Barmak, K. ; Bailey, W. E. ( July 2019 , Journal of Applied Physics)
5. Quantitative Measurement of Iron-Silicides by EPMA Using the Fe L α and L β X-ray Lines: A New Twist to an Old Approach

   https://doi.org/10.1017/S1431927619000436  

   Moy, Aurélien ; Fournelle, John ; von der Handt, Anette ( June 2019 , Microscopy and Microanalysis)

   Abstract The recent availability of Schottky-type field emission electron microprobes provides incentive to consider analyzing micrometer-sized features. Yet, to quantify sub-micrometer-sized features, the electron interaction volume must be reduced by decreasing accelerating voltage. However, the K lines of the transition elements (e.g., Fe) then cannot be excited, and the L lines must be used. The Fe L α 1,2 line is the most intense of the L series but bonding effects change its atomic parameters because it involves a valence band electron transition. For successful traditional electron probe microanalysis, the mass absorption coefficient (MAC) must be accurately known, but the MAC of Fe L α 1,2 radiation by Fe atoms varies from one Fe-compound to another and is not well known. We show that the conventional method of measuring the MAC by an electron probe cannot be used in close proximity to absorption edges, making its accurate determination impossible. Fortunately, we demonstrate, using a set of Fe–silicide compounds, that it is possible to derive an accurate calibration curve, for a given accelerating voltage and takeoff angle, which can be used to quantify Fe in Fe–silicide compounds. The calibration curve can be applied to any spectrometer without calibration and gives accurate quantification results. 

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