منابع مشابه
Non-reciprocal X-ray linear dichroism.
Recently, a new optical effect was observed by Goulon, Rogalev, Goulon-Ginet, Benayoun, Paolasini, Brouder, Malgrange & Metcalf [Phys. Rev. Lett. (2000), 85, 4385-4388] using linearly polarized synchrotron radiation. The authors have correctly analysed the effect using the mathematical framework of Buckingham and Barron. A brief review is given with the underlying simplicity discussed from a sy...
متن کاملFemtosecond X-ray magnetic circular dichroism absorption spectroscopy at an X-ray free electron laser.
X-ray magnetic circular dichroism spectroscopy using an X-ray free electron laser is demonstrated with spectra over the Fe L(3,2)-edges. The high brightness of the X-ray free electron laser combined with high accuracy detection of incident and transmitted X-rays enables ultrafast X-ray magnetic circular dichroism studies of unprecedented sensitivity. This new capability is applied to a study of...
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 کاملBand 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 natural circular dichroism in langasite crystal.
Optical activity in the X-ray range stems from the electric-dipole-electric-quadrupole interference terms mixing multipoles of opposite parity, and can be observed exclusively in systems with broken inversion symmetry. The gyration tensor formalism is used to describe the X-ray optical activity in langasite La3Ga5SiO14 crystal with the P321 space group. An experimental study of the X-ray natura...
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: Synchrotron Radiation News
سال: 2020
ISSN: 0894-0886,1931-7344
DOI: 10.1080/08940886.2020.1725759