The Effect of Disordering on Magnetic Properties of Fe-Al Alloys

The results of magnetometric, Mössbauer and XMCD (X-ray Magnetic Circular Dichroism) studies of B2 or DO3–type ordered (25 to 35 at.%Al) and disordered by mechanical activation (35 to 60 at.% Al) Fe-Al alloys are considered. For the description of magnetic characteristics of the studied alloys the validity of local magnetic moments models is discussed. The models suppose that Fe atom local magnetic moments are collinear with magnitude and direction depending on the number of Al atoms in the Fe nearest neighbourhood.

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MAGNETIC MICROSPECTROSCOPY BY A COMBINATION OF XMCD AND PEEM

Surface Review and Letters ◽

10.1142/s0218625x02003093 ◽

2002 ◽

Vol 09 (02) ◽

pp. 877-881 ◽

Cited By ~ 14

Author(s):

S. IMADA ◽

S. SUGA ◽

W. KUCH ◽

J. KIRSCHNER

Keyword(s):

Circular Dichroism ◽

Full Advantage ◽

Quantitative Evaluation ◽

Magnetic Circular Dichroism ◽

Magnetic Moments ◽

Magnetic Domain ◽

X Ray ◽

Circular Dichroïsm

The benefits of combining soft X-ray magnetic circular dichroism and photoelectron microscopy are demonstrated by applying this combination (XMCD–PEEM) not only to magnetic domain imaging but also to quantitative evaluation of the distribution of spin and orbital magnetic moments. The latter takes full advantage of the spectroscopic aspect of XMCD–PEEM.

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Structural and magnetic properties of Co-doped (La,Sr)TiO3epitaxial thin films probed using x-ray magnetic circular dichroism

Journal of Physics Condensed Matter ◽

10.1088/0953-8984/21/40/406001 ◽

2009 ◽

Vol 21 (40) ◽

pp. 406001 ◽

Cited By ~ 3

Author(s):

O Copie ◽

K Rode ◽

R Mattana ◽

M Bibes ◽

V Cros ◽

...

Keyword(s):

Thin Films ◽

Magnetic Properties ◽

Circular Dichroism ◽

Magnetic Circular Dichroism ◽

X Ray ◽

Structural And Magnetic Properties ◽

Circular Dichroïsm ◽

Co Doped

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Element specific determination of the magnetic properties of two macrocyclic tetranuclear 3d–4f complexes with a Cu3Tb core by means of X-ray magnetic circular dichroism (XMCD)

Physical Chemistry Chemical Physics ◽

10.1039/c7cp08689j ◽

2018 ◽

Vol 20 (33) ◽

pp. 21286-21293

Author(s):

K. Balinski ◽

L. Schneider ◽

J. Wöllermann ◽

A. Buling ◽

L. Joly ◽

...

Keyword(s):

Magnetic Properties ◽

Circular Dichroism ◽

Magnetic Structure ◽

Magnetic Circular Dichroism ◽

Macrocyclic Complexes ◽

X Ray ◽

Specific Determination ◽

Circular Dichroïsm

We apply X-ray magnetic circular dichroism to study the internal magnetic structure of two very promising star shaped macrocyclic complexes with a CuII3TbIII core.

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First principles calculations of intersite disorder influence on the electronic structure and X-ray magnetic circular dichroism in CoFeMnSi Heusler alloy

International Journal of Modern Physics C ◽

10.1142/s0129183120501090 ◽

2020 ◽

Vol 31 (08) ◽

pp. 2050109

Author(s):

S. Uba ◽

A. Bonda ◽

L. Uba ◽

L. V. Bekenov ◽

V. N. Antonov

Keyword(s):

Electronic Structure ◽

Circular Dichroism ◽

First Principles ◽

Heusler Alloy ◽

Magnetic Circular Dichroism ◽

Magnetic Moments ◽

X Ray ◽

The Rich ◽

X Ray Absorption ◽

Circular Dichroïsm

Electronic structure, X-ray absorption, and magnetic circular dichroism (XMCD) spectra in the CoFeMnSi Heusler alloy were studied from first principles. Fully relativistic Dirac linear muffin-tin orbital band structure method was implemented with various exchange–correlation functionals tested. The supercell approach was used to study the influence of intersite disorder, at the levels of 6.25%, 12.5%, and 25% within transition metal sites, on the XMCD spectra at [Formula: see text] edges and spin polarization (SP) at the Fermi level. It is found that most sensitive to Fe–Mn and Co–Fe disorder are XMCD spectra at [Formula: see text] edges of Fe, while the sensitivity decreases from Mn to Co. It is shown that magnetic moments estimated with the use of magneto-optical (MO) sum rules agree with the ab initio calculated ones to within [Formula: see text], [Formula: see text], and [Formula: see text], for Co, Fe, and Mn, respectively. The calculated SP decreases from 99% for ordered CoFeMnSi alloy, to 96% upon 25% Co–Fe disorder, to 83% for Fe–Mn disorder, and to 42% in the case of Co–Mn disorder. The calculated spectra agree well with the available experimental data. The rich XMCD spectral structures are predicted from first principles at Fe, Co, Mn and Si [Formula: see text] edges.

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