Magnetic Compton Scattering on Sr-Doped LaCoO3

Theories of Compton Scattering by Magnetic Materials *

Radiat ion scattering experiments on magnetic materials cont inue to provide new and exciting science. Recent examples include polar izat ion and resonance studies of x-ray magnet ic scattering in rare-earth metals [1] and white-beam nonresonant diffraction of synchrot ron radia t ion f rom ferromagnet ic iron [2]. Mater ia l propert ies probed in such experiments are weak s t ructural modula t...

Application of magnetic Compton scattering to magnetic material research

Recent topics on magnetic Compton-profile studies are reviewed. A compact introduction describes that the X-ray magnetic Compton-scattering method can be used to measure the momentum density of magnetic electrons, which may be said to be the extreme space-time self correlation of spins. Some examples show that the magnetic Compton profile provides information about the spin component of a magne...

Compton Scattering

In the early 20th century, research into the interaction of X-rays with matter was an emerging field. It was observed that when a beam of X-rays is directed at an atom, an electron is ejected and the light is scattered through an angle θ, as illustrated below. Classical electromagnetism predicts that the wavelength of scattered rays should be equal to the initial wavelength; however, experiment...

Phase separation , thermal history and magnetic behaviour of Sr doped

High-resolution transmission electron microscopy observations and magnetic ac susceptibility measurements have been carried out to study the changes in the magnetic properties of La1−xSrxCoO3 samples (x 0.3) processed at different annealing temperatures, ranging from 1273 to 1573 K. Although neutron diffraction excludes the coexistence of distinct phases with different chemical composition, roo...

Charge-ordering in Magnetite studied by Magnetic Compton Scattering