4 papers
Condensed Matter Astrophysics: A Prescription for Determining the Species-Specific Composition and Quantity of Interstellar Dust using X-rays
Julia C. Lee, Jingen Xiang, Bruce Ravel +2
We present a new technique for determining the *quantity and composition* of dust in astrophysical environments using <6keV X-rays. We argue that high resolution X-ray spectra as e…
Disorder-induced magnetic memory: Experiments and theories
M. S. Pierce, C. R. Buechler, L. B. Sorensen +13
Beautiful theories of magnetic hysteresis based on random microscopic disorder have been developed over the past ten years. Our goal was to directly compare these theories with pre…
Disorder-induced microscopic magnetic memory
M. S. Pierce, C. R. Buechler, L. B. Sorensen +13
Using coherent x-ray speckle metrology, we have measured the influence of disorder on major loop return point memory (RPM) and complementary point memory (CPM) for a series of perp…
Quasistatic x-ray speckle metrology of microscopic magnetic return point memory
Michael S. Pierce, Rob G. Moore, Larry B. Sorensen +4
We have used coherent, resonant, x-ray magnetic speckle patterns to measure the statistical evolution of the microscopic magnetic domains in perpendicular magnetic films as a funct…