Quantitative Analysis of Polarized Neutron Specular Reflectivity from a Co/Cu (111) Superlattice at the Second Antiferromagnetic Maximum

1993 ◽  
Vol 313 ◽  
Author(s):  
J.F. Ankner ◽  
A. Schreyer ◽  
C.F. Majkrzak ◽  
K. Bröhl ◽  
Th. Zeidler ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Sample Volume ◽  
Antiferromagnetic Order ◽  
Neutron Reflectivity ◽  
Disordered Structures ◽  
Ferromagnetic Domains ◽  
Specular Reflectivity ◽  
Polarized Neutron ◽  
Oscillatory Coupling

ABSTRACTWe have used polarized neutron reflectivity to prove the existence of oscillatory coupling in MBE-grown Co/Cu (111) superlattices. For a sample of composition [3.4 nm Co/2.0 nm Cu]10, we find that only a small fraction of the sample volume exhibits coherent antiferromagnetic order, with the structure of the remainder of the film being attributable to ferromagnetic domains and small disordered structures.

Magnetic Structure Determination for Annealed Ni80Fe20/Ag Multilayers Using Polarized-Neutron Reflectivity

1994 ◽  
Vol 376 ◽  
Author(s):  
J.A. Borchers ◽  
P.M. Gehring ◽  
C.F. Majkrzak ◽  
J.F. Ankner ◽  
T.L. Hylton ◽  
...  
Keyword(s):  
Neutron Reflectivity ◽  
Magnetic Domains ◽  
X Ray Diffraction ◽  
Cross Sectional ◽  
Ferromagnetic Layers ◽  
Specular Reflectivity ◽  
Polarized Neutron ◽  
Applied Fields ◽  
Broad Feature ◽  
Intensity Characteristic

ABSTRACTSputtered Ni80Fe20/Ag multilayers, annealed post-growth, show giant magnetoresistive (GMR) effects at unusually low magnetic fields (≈ 5 Oe)[l]. Structural characterization by cross-sectional TEM[2] and x-ray diffraction indicates that the Ag preferentially diffuses into the Ni80Fe20 layers at the interfaces. Using polarized-neutron specular reflectivity, we have obtained magnetization depth profiles for a series of annealed [Ni8oFe2o(20Å)/Ag(40Å)]4 multilayers. Though GMR in related materials is associated with coherent antiferromagnetic alignment of the ferromagnetic layers, specular neutron data for the Ni80Fe20/Ag multilayers show no trace of half-order spin-flip intensity characteristic of this simple structure. In small applied fields, transverse scans at the half-order position show a broad feature which disappears upon saturation. These data suggest that while the Ni80Fe20 moments are antiferromagnetically correlated along the growth axis, the in-plane magnetic domains are only of micron-order size and are thus not apparent in a specular measurement.

Specular and off-specular polarized neutron reflectivity at Dhruva

Neutron News ◽  
2014 ◽  
Vol 25 (1) ◽  
pp. 31-33 ◽  
Author(s):  
Surendra Singh ◽  
Debarati Bhattacharya ◽  
Saibal Basu
Keyword(s):  
Neutron Reflectivity ◽  
Polarized Neutron

Using spin-polarized neutron reflectivity to probe mesoscopic vortex states in a Pb thin-film superconductor

2009 ◽  
Vol 80 (13) ◽  
Author(s):  
A. J. Drew ◽  
M. W. Wisemayer ◽  
D. O. G. Heron ◽  
S. Lister ◽  
S. L. Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Neutron Reflectivity ◽  
Vortex States ◽  
Spin Polarized ◽  
Polarized Neutron

scholarly journals Determination of fine magnetic structure of magnetic multilayer with quasi antiferromagnetic layer by using polarized neutron reflectivity analysis

AIP Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 015323
Author(s):  
Yongshi Zhong ◽  
Yuichiro Kurokawa ◽  
Gen Nagashima ◽  
Shu Horiike ◽  
Takayasu Hanashima ◽  
...  
Keyword(s):  
Magnetic Structure ◽  
Neutron Reflectivity ◽  
Magnetic Multilayer ◽  
Antiferromagnetic Layer ◽  
Polarized Neutron

scholarly journals Polarized neutron reflectivity studies on epitaxial BiFeO3/La0.7Sr0.3MnO3 heterostructure integrated with Si (100)

AIP Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 055821
Author(s):  
S. R. Singamaneni ◽  
J. T. Prater ◽  
A. Glavic ◽  
V. Lauter ◽  
J. Narayan
Keyword(s):  
Neutron Reflectivity ◽  
Polarized Neutron

Polarized neutron reflectivity studies on granular Co80Fe20/Al2O3 multilayers

2007 ◽  
Vol 397 (1-2) ◽  
pp. 65-67 ◽  
Author(s):  
S. Bedanta ◽  
E. Kentzinger ◽  
O. Petracic ◽  
W. Kleemann ◽  
U. Rücker ◽  
...  
Keyword(s):  
Neutron Reflectivity ◽  
Polarized Neutron

Determination of nonmagnetic density profiles using polarized neutron reflectivity

1992 ◽  
Author(s):  
Charles F. Majkrzak ◽  
N. F. Berk ◽  
John F. Ankner ◽  
Sushil K. Satija ◽  
Terence P. Russell
Keyword(s):  
Neutron Reflectivity ◽  
Density Profiles ◽  
Polarized Neutron
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