scholarly journals Polarized neutron study of the magnetization density distribution within a CoFe/sub 2/O/sub 4/ colloidal particle (magnetization density in a colloidal CoFe/sub 2/O/sub 4/ crystallite)

1983 ◽  
Author(s):  
A.C. Nunes ◽  
C.F. Majkrzak ◽  
A.E. Berkowitz
Keyword(s):  
Density Distribution ◽  
Colloidal Particle ◽  
Magnetization Density ◽  
Polarized Neutron

Polarized neutron diffraction study of the magnetization density distribution in Rb 2 CrCl 4 : a two-dimensional ionic ferromagnet

1986 ◽  
Vol 406 (1830) ◽  
pp. 39-61 ◽  
Keyword(s):  
Neutron Diffraction ◽  
Density Distribution ◽  
Neutron Diffraction Study ◽  
Orbital Ordering ◽  
Teller Distortion ◽  
Main Structure ◽  
Magnetization Density ◽  
Jahn Teller ◽  
Polarized Neutron ◽  
Secondary Extinction

The magnetization density distribution in the ionic ferromagnet Rb 2 CrCl 4 has been determined by polarized neutron diffraction from a single crystal at 4.5 K. Magnetic structure factors F M were derived from the flipping ratios R of 660 main structure reflections (189 independent) and 57 super-structure reflections with sin θ /λ ≼ 0.8 Å -1 (λ = 0.90 Å). The main structure reflections were corrected for extinction using a secondary extinction parameter. The F M were modelled by representing the mag­netization density by a superposition of densities from orbitals centred at each atom : Cr(3d, 4s) and Cl(3s, 3p). The results verify the presence of orbital ordering arising from the cooperative Jahn-Teller distortion in the basal plane, previously postulated as responsible for the ferromagnetic exchange interaction. The proportion of the Cr 2+ moment occupying each 3d orbital is 0.26(2)( yz ), 0.25(2)( xz ), 0.25 0.25(2)( z 2 ) and — 0.01 (2)( x 2 — y 2 ), where z is the principal axis of Jahn-Teller elongation at each Cr site. The optimum refined distribution of the magnetic moment (μ B ) was Cr(3d) 3.16(8), Cr(4s) 0.6(1), equatorial Cl(3s) 0.05(2), Cl(3p) 0.06(3) and axial Cl(3s) 0.03(3), Cl(3p) 0.08(5).

scholarly journals Magnetization Density Distribution of Sr2IrO4 : Deviation from a Local jeff=1/2 Picture

2020 ◽  
Vol 125 (9) ◽  
Author(s):  
Jaehong Jeong ◽  
Benjamin Lenz ◽  
Arsen Gukasov ◽  
Xavier Fabrèges ◽  
Andrew Sazonov ◽  
...  
Keyword(s):  
Density Distribution ◽  
Magnetization Density

Magnetization Density in an Iron(III) Magnetic Cluster. A Polarized Neutron Investigation

1999 ◽  
Vol 121 (22) ◽  
pp. 5342-5343 ◽  
Author(s):  
Yves Pontillon ◽  
Andrea Caneschi ◽  
Dante Gatteschi ◽  
Roberta Sessoli ◽  
Eric Ressouche ◽  
...  
Keyword(s):  
Magnetic Cluster ◽  
Magnetization Density ◽  
Cluster A ◽  
Polarized Neutron

Magnetic Order of Co0.1Pt0.9 in Proximity of CoPt3

1998 ◽  
Vol 517 ◽  
Author(s):  
A.L. Shapiro ◽  
F. Hellman ◽  
M.R. Fitzsimmons
Keyword(s):  
Depth Profile ◽  
Magnetic Order ◽  
Neutron Reflectometry ◽  
Bilayer Film ◽  
Ferromagnetic Order ◽  
Magnetization Density ◽  
Close Proximity ◽  
Polarized Neutron ◽  
The Moment ◽  
Polarized Neutron Reflectometry

AbstractA polarized neutron reflectometry study of the magnetization density depth profile of a Co0.1Pt0.9-CoPt3 bilayer film found evidence for an induced moment in the Co0.1Pt0.9 overlayer in close proximity to the CoPt3 underlayer. If the moment of Co in these films is that of the bulk, then the μpt = 0.09(1)μB in the overlayer, and μpt = 0.04(1)μB, in the underlayer. In addition, ferromagnetic order of the Co0.1Pt0.9 overlayer was observed 8K above Tc for the material in the bulk.

The Spin Density Distribution in the Tetracyanoethylene Radical Anion, [TCNE]??, by Single-Crystal Polarized Neutron Diffraction

1994 ◽  
Vol 33 (13) ◽  
pp. 1397-1399 ◽  
Author(s):  
Andrey Zheludev ◽  
Andr� Grand ◽  
Eric Ressouche ◽  
Jacques Schweizer ◽  
Brian G. Morin ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Density Distribution ◽  
Single Crystal ◽  
Spin Density ◽  
Radical Anion ◽  
Spin Density Distribution ◽  
Polarized Neutron
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