X-ray magnetic circular dichroism: Difference between revisions
Tedsanders (talk | contribs) m changed x-ray to X-ray, following standard convention (though I am sympathetic to lowercase x) |
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[[Image:Xmcd-fe-on-w.png|thumb|300px|XMCD spectrum of [[Iron]]]]'''X-ray magnetic circular dichroism (XMCD)''' is a difference [[spectrum]] of two [[X-ray]] [[Absorption spectrum|absorption spectra]] (XAS) taken in a magnetic field, one taken with left [[circular polarization|circularly polarized light]], and one with right circularly polarized light. By closely analyzing the difference in the XMCD spectrum, information can be obtained on the magnetic properties of the atom, such as its [[Spin (physics)|spin]] and [[Atomic orbital|orbital]] [[magnetic moment]]. |
[[Image:Xmcd-fe-on-w.png|thumb|300px|XMCD spectrum of [[Iron]]]]'''X-ray magnetic circular dichroism (XMCD)''' is a difference [[spectrum]] of two [[X-ray]] [[Absorption spectrum|absorption spectra]] (XAS) taken in a magnetic field, one taken with left [[circular polarization|circularly polarized light]], and one with right circularly polarized light. By closely analyzing the difference in the XMCD spectrum, information can be obtained on the magnetic properties of the atom, such as its [[Spin (physics)|spin]] and [[Atomic orbital|orbital]] [[magnetic moment]]. |
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In the case of [[transition metal]]s such as [[iron]], [[cobalt]], and [[nickel]], the absorption spectra for XMCD are usually measured at the [[X-ray notation#Use|L-edge]]. This corresponds to the process in the iron case: with iron, a [[Electron configuration|2p]] electron is excited to a [[Electron configuration|3d]] state by an |
In the case of [[transition metal]]s such as [[iron]], [[cobalt]], and [[nickel]], the absorption spectra for XMCD are usually measured at the [[X-ray notation#Use|L-edge]]. This corresponds to the process in the iron case: with iron, a [[Electron configuration|2p]] electron is excited to a [[Electron configuration|3d]] state by an X-ray of about 700 [[Electronvolt|eV]]. Because the 3d electron states are the origin of the magnetic properties of the elements, the spectra contain information on the magnetic properties. |
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==See also== |
==See also== |
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Revision as of 18:43, 29 July 2016
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X-ray magnetic circular dichroism (XMCD) is a difference spectrum of two X-ray absorption spectra (XAS) taken in a magnetic field, one taken with left circularly polarized light, and one with right circularly polarized light. By closely analyzing the difference in the XMCD spectrum, information can be obtained on the magnetic properties of the atom, such as its spin and orbital magnetic moment.
In the case of transition metals such as iron, cobalt, and nickel, the absorption spectra for XMCD are usually measured at the L-edge. This corresponds to the process in the iron case: with iron, a 2p electron is excited to a 3d state by an X-ray of about 700 eV. Because the 3d electron states are the origin of the magnetic properties of the elements, the spectra contain information on the magnetic properties.
See also
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