Large anisotropic Fe orbital moments in perpendicularly magnetized Co2FeAl Heusler alloy thin films revealed by angular-dependent x-ray magnetic circular dichroism

2013 ◽  
Vol 103 (10) ◽  
pp. 102402 ◽  
Author(s):  
Jun Okabayashi ◽  
Hiroaki Sukegawa ◽  
Zhenchao Wen ◽  
Koichiro Inomata ◽  
Seiji Mitani
Keyword(s):  
Thin Films ◽  
Circular Dichroism ◽  
Heusler Alloy ◽  
Magnetic Circular Dichroism ◽  
X Ray ◽  
Circular Dichroïsm

X‐ray magnetic circular dichroism studies of multilayered thin films of 3d transition metals (invited) (abstract)

1994 ◽  
Vol 75 (10) ◽  
pp. 5807-5807 ◽  
Author(s):  
D. Weller ◽  
M. G. Samant ◽  
J. Stöhr ◽  
Y. Wu ◽  
B. D. Hermsmeier ◽  
...  
Keyword(s):  
Thin Films ◽  
Circular Dichroism ◽  
Transition Metals ◽  
Magnetic Circular Dichroism ◽  
X Ray ◽  
Multilayered Thin Films ◽  
Circular Dichroïsm

Magnetic Structure of Multilayers from Soft-X-Ray Magnetic Circular Dichroism

1994 ◽  
Vol 375 ◽  
Author(s):  
C. T. Chen ◽  
Y. U. Idzerda ◽  
C.-C. Kao ◽  
L. H. Tjeng ◽  
H.-J. Lin ◽  
...  
Keyword(s):  
Thin Films ◽  
Circular Dichroism ◽  
Magnetic Circular Dichroism ◽  
Magnetic Thin Films ◽  
X Rays ◽  
X Ray ◽  
Specific Manner ◽  
Left And Right ◽  
The Difference ◽  
Circular Dichroïsm

AbstractSoft-x-ray magnetic circular dichroism (MCD) is the difference between the absorptivity or reflectivity of left and right circularly polarized soft-x-rays at the magnetically interesting L2,3- edges of 3d transition metals or the M4,5-edges of the 4f rare earth elements. Thanks to its large absorption cross-section and strong MCD effect, this technique has become a powerful new means for probing, in an element- and site-specific manner, the magnetic properties of ultra-thin films and multilayers. Soft-x-ray MCD experiments, recently conducted at the Dragon beamline, are utilized to demonstrate the recent progress in this technique and its applications in the research of magnetic thin films.

Irradiation induced ferromagnetism at room temperature in TiO2 thin films: X-ray magnetic circular dichroism characterizations

2011 ◽  
Vol 98 (19) ◽  
pp. 192512 ◽  
Author(s):  
Hardeep Thakur ◽  
P. Thakur ◽  
Ravi Kumar ◽  
N. B. Brookes ◽  
K. K. Sharma ◽  
...  
Keyword(s):  
Thin Films ◽  
Circular Dichroism ◽  
Room Temperature ◽  
Magnetic Circular Dichroism ◽  
Tio2 Thin Films ◽  
X Ray ◽  
Circular Dichroïsm

Ferrimagnetism in epitaxially grown Mn2VAl Heusler alloy investigated by means of soft x-ray magnetic circular dichroism

2009 ◽  
Vol 95 (22) ◽  
pp. 222503 ◽  
Author(s):  
Takahide Kubota ◽  
Kenji Kodama ◽  
Tetsuya Nakamura ◽  
Yuya Sakuraba ◽  
Mikihiko Oogane ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Heusler Alloy ◽  
Magnetic Circular Dichroism ◽  
X Ray ◽  
Circular Dichroïsm

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

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.

X-ray absorption spectroscopy and magnetic circular dichroism of the Mn-ferrite nanocrystalline thin films

2001 ◽  
Vol 90 (5) ◽  
pp. 2511-2516 ◽  
Author(s):  
L. Štichauer ◽  
A. Mirone ◽  
S. Turchini ◽  
T. Prosperi ◽  
S. Zennaro ◽  
...  
Keyword(s):  
Thin Films ◽  
Circular Dichroism ◽  
Absorption Spectroscopy ◽  
Magnetic Circular Dichroism ◽  
X Ray ◽  
X Ray Absorption ◽  
Circular Dichroïsm ◽  
Nanocrystalline Thin Films

scholarly journals Intrinsic and Extrinsic Ferromagnetism in Co-Doped Indium Tin Oxide Revealed Using X-Ray Magnetic Circular Dichroism

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
A. M. H. R. Hakimi ◽  
F. Schoofs ◽  
M. G. Blamire ◽  
S. Langridge ◽  
S. S. Dhesi
Keyword(s):  
Thin Films ◽  
Circular Dichroism ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Magnetic Circular Dichroism ◽  
Cluster Formation ◽  
X Ray ◽  
Ito Thin Films ◽  
Circular Dichroïsm ◽  
Co Doped

The effects of high-temperature annealing on ferromagnetic Co-doped Indium Tin Oxide (ITO) thin films have been investigated using X-ray diffraction (XRD), magnetometry, and X-Ray Magnetic Circular Dichroism (XMCD). Following annealing, the magnetometry results indicate the formation of Co clusters with a significant increase in the saturation magnetization of the thin films arising from defects introduced during cluster formation. However, sum rule analysis of the element-specific XMCD results shows that the magnetic moment at the Co sites is reduced after annealing. The effects of annealing demonstrate that the ferromagnetism observed in the as-deposited Co-doped ITO films arises from intrinsic defects and cannot be related to the segregation of metallic Co clusters.

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