Mulliken Population Analysis of X-ray Magnetic Circular Dichroism in Uranium Monochalcogenides: Examination of Sum Rules by Fully Relativistic Full-Potential LCAO Method
نویسندگان
چکیده
منابع مشابه
Band structure and atomic sum rules for x - ray dichroism
– Corrections to the atomic orbital sum rule for circular magnetic x-ray dichroism in solids are derived using orthonormal LMTOs as a single-particle basis for electron band states. Atomic physics affords a theory of x-ray dichroism by providing a set of sum rules which relate dichroic intensities, integrated over a finite energy interval, to the ground-state expectation value of effective one-...
متن کاملX-ray absorption and magnetic circular dichroism of graphene
We present systematic investigations of the electronic and magnetic properties of the graphenel Ni( Ill) system by means of x-ray absorption spectroscopy (XAS) and magnetic circular dichroi sm (XMCD) at the Ni L2,3 and C K absorption edges. The XAS CIs -> 1/'* , u* spectra show dramatic changes as the angle, il', between the electrical vector of light and normal of the sample is varied reflecti...
متن کاملComputation of magnetic circular dichroism by sum-over-states summations
Magnetic circular dichroism (MCD) spectroscopy has been established as a convenient method to study electronic structure, in particular for small symmetric organic molecules. Newer applications on more complex systems are additionally stimulated by the latest availability of precise quantum-chemical techniques for the spectral simulations. In this work, a sum over states (SOS) summation is reex...
متن کاملProbing Magnetic Polarities of Magnetotactic Bacteria by X-ray Magnetic Circular Dichroism in a Scanning Transmission X-ray Microscope
Magnetotactic bacteria (MTB) are a group of fascinating organisms that can biomineralize chains of nano-scale (~50 nm) single crystals of magnetite (Fe3O4) or greigite (Fe3S4), known as magnetosomes [1]. The magnetosome chain passively aligns the magnetotactic bacteria with the Earth’s geomagnetic field lines, a behaviour called magnetotaxis. This, along with oxygen chemotaxis, is believed to g...
متن کاملX-Ray Magnetic Circular Dichroism Studies on CeNi4B
The CeNi4B compound is a mixed-valence system. It is a paramagnet with μeff = 0.52 μB/f.u. and the paramagnetic Curie temperature θ = −10.7 K. In the present research we complete our previous magnetic susceptibility and X-ray photoemission measurements with new studies by the X-ray magnetic circular dichroism method. The observation of the Ce M4,5 edges carried out with X-ray magnetic circular ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2009
ISSN: 0031-9015,1347-4073
DOI: 10.1143/jpsj.78.074715