scholarly journals X-ray analysis of oxygen-induced perpendicular magnetic anisotropy in trilayers

2008 ◽  
Vol 320 (13) ◽  
pp. 1889-1892 ◽  
Author(s):  
A. Manchon ◽  
S. Pizzini ◽  
J. Vogel ◽  
V. Uhlíř ◽  
L. Lombard ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
X Ray

scholarly journals Detecting quadrupole: a hidden source of magnetic anisotropy for Manganese alloys

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jun Okabayashi ◽  
Yoshio Miura ◽  
Yohei Kota ◽  
Kazuya Z. Suzuki ◽  
Akimasa Sakuma ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Quantum Physics ◽  
Theoretical Calculations ◽  
Magnetic Moments ◽  
Perpendicular Magnetic Anisotropy ◽  
Linear Dichroism ◽  
First Principles Calculation ◽  
X Ray ◽  
Manganese Alloys ◽  
Ordered Alloys

Abstract Mn-based alloys exhibit unique properties in the spintronics materials possessing perpendicular magnetic anisotropy (PMA) beyond the Fe and Co-based alloys. It is desired to figure out the quantum physics of PMA inherent to Mn-based alloys, which have never been reported. Here, the origin of PMA in ferrimagnetic Mn3− δ Ga ordered alloys is investigated to resolve antiparallel-coupled Mn sites using x-ray magnetic circular and linear dichroism (XMCD/XMLD) and a first-principles calculation. We found that the contribution of orbital magnetic moments in PMA is small from XMCD and that the finite quadrupole-like orbital distortion through spin-flipped electron hopping is dominant from XMLD and theoretical calculations. These findings suggest that the spin-flipped orbital quadrupole formations originate from the PMA in Mn3− δ Ga and bring the paradigm shift in the researches of PMA materials using x-ray magnetic spectroscopies.

Investigation of perpendicular magnetic anisotropy of CoFeB by x-ray magnetic circular dichroism

2012 ◽  
Vol 100 (17) ◽  
pp. 172414 ◽  
Author(s):  
W. C. Tsai ◽  
S. C. Liao ◽  
H. C. Hou ◽  
C. T. Yen ◽  
Y. H. Wang ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Magnetic Anisotropy ◽  
Magnetic Circular Dichroism ◽  
Perpendicular Magnetic Anisotropy ◽  
X Ray ◽  
Circular Dichroïsm

Hydrogenation and Magnetic Properties of Pd/Co Multilayers

1996 ◽  
Vol 458 ◽  
Author(s):  
A. Suzuki ◽  
K. Kyuno ◽  
E. Akiba ◽  
T. Manago ◽  
H. Miyajima ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Anisotropy ◽  
Unit Volume ◽  
Unit Area ◽  
Perpendicular Magnetic Anisotropy ◽  
Anisotropy Energy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nano Crystalline ◽  
Xrd Patterns

ABSTRACTThe magnetic properties of sputtered Pd/Co multilaysers in hydrogen atmospheres were studied. The x-ray diffraction(XRD) patterns in hydrogen atmospheres showed that the lattice expansion of hydrogenated Pd decreased with decreasing thickness of Pd layers, which is reminiscent of nano-crystalline Pd. Perpendicular magnetic anisotropy(PMA) and saturation magnetization were reduced by the hydrogénation. The interface anisotropy energy per unit area, Ks, and volume anisotropy energy per unit volume, Kv are discussed. These results suggest that interface magnetic anisotropy between Pd and Co layers is suppressed by hydrogenation.

scholarly journals Perpendicular magnetic anisotropy at the Fe/Au(111) interface studied by Mössbauer, x-ray absorption, and photoemission spectroscopies

2021 ◽  
Vol 103 (10) ◽  
Author(s):  
Jun Okabayashi ◽  
Songtian Li ◽  
Seiji Sakai ◽  
Yasuhiro Kobayashi ◽  
Takaya Mitsui ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
X Ray ◽  
X Ray Absorption

Circularly polarized soft X-ray generation by Co/Pt thin film polarizer with perpendicular magnetic anisotropy

2018 ◽  
Vol 18 (11) ◽  
pp. 1196-1200
Author(s):  
Sang-Hyuk Lee ◽  
Lin Huang ◽  
Jae-Woong Lee ◽  
Namdong Kim ◽  
Hyun-Joon Shin ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Circularly Polarized ◽  
X Ray
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