Structural Studies and Magnetic Properties of Polymeric Ladder-Type Compounds {Ln2[Ni(opba)]3}·S (Ln = Lanthanide Element; opba =o-Phenylenebis(oxamato), S = Solvent Molecules)

2000 ◽  
Vol 12 (10) ◽  
pp. 3073-3079 ◽  
Author(s):  
Myrtil L. Kahn ◽  
Pierre Lecante ◽  
Marc Verelst ◽  
Corine Mathonière ◽  
Olivier Kahn
2003 ◽  
Vol 58 (9) ◽  
pp. 916-921 ◽  
Author(s):  
Amitabha Datta ◽  
Samiran Mitra ◽  
Georgina Rosair

Two new bimetallic complexes [Zn(phen)3][Fe(CN)5(NO)] · 2 H2O · 0.25 MeOH, (1) and [(bipy)2(H2O)Zn(μ-NC)Fe(CN)4(NO)] · 0.5 H2O, (2), have been isolated (where phen = 1,10-phenanthroline and bipy = bipyridyl) and characterised by X-ray crystallography [as the 2 H2O · 0.25 CH3OH solvate for (1) and hemihydrate for (2)] infrared spectroscopy and thermogravimetric analysis. Substitution of phenanthroline for bipyridyl resulted in a cyano-bridged bimetallic species rather than two discrete mononuclear metal complexes. The bond angles of Fe-N-O were shown to be practically linear for both 1 [179.2(7)°] and 2 [178.3(3)°], and the Zn atoms have distorted octahedral geometry. The solvent molecules in both crystal lattices take part in forming hydrogen-bonded networks.


2021 ◽  
Vol 63 (9) ◽  
pp. 1306
Author(s):  
Е.М. Якунина ◽  
Е.А. Кравцов ◽  
Yu.N. Khaydukov ◽  
Н.О. Антропов ◽  
В.В. Проглядо

Layered nanoheterostructures Fe | MgO | Cr | MgO | Fe is an artificial ferromagnetic material in which the exchange interaction of the magnetic moments of Fe layers through intermediate dielectric and metal layers can lead to magnetic configurations that are not realized in the well-studied Fe | MgO | Fe and Fe | Cr | Fe. In this work, we investigated the correlations of the structural and magnetic properties of layered nanoheterostructures Fe (10 nm) | MgO (1.5 nm) | Cr (t nm) | MgO (1.5 nm) | Fe (7 nm) (thickness t = 0.9 and 1.8 nm). Structural studies performed using X-ray diffractometry and high-resolution reflectometry confirmed the formation of a textured structure and revealed its well-defined layered character with sharp interlayer boundaries.


CrystEngComm ◽  
2020 ◽  
Vol 22 (8) ◽  
pp. 1321-1329 ◽  
Author(s):  
Gui-lei Liu ◽  
Jian-Biao Song ◽  
Qi-ming Qiu ◽  
Hui Li

Three supramolecular isomeric Cu(ii) networks with different metal fragments and ligand conformations were obtained by the adjustment of solvent molecules.


2019 ◽  
Vol 33 (4) ◽  
pp. 1007-1012 ◽  
Author(s):  
H. Lamsaf ◽  
E. H. Elghadraoui ◽  
R. Fausto ◽  
A. Oulmekki ◽  
B. F. O. Costa

2012 ◽  
Vol 05 ◽  
pp. 841-846
Author(s):  
AMIR KEYVANARA ◽  
REZA GHOLAMIPOUR ◽  
SHAMSEDIN MIRDAMADI ◽  
FARZAD SHAHRI ◽  
HOSSEIN SEPEHRI AMIN

Melt spun ribbons of Co 64 Fe 4 Ni 2 B 19 Si 8 Cr 3 alloy have been prepared and the nanocrystallization process was carried out by the heat treatment of the as spun ribbons above the crystallization temperature. Structural studies of the samples have been performed by transmission electron microscopy and X-ray diffraction. Magnetic properties of the samples and magnetoimpedance measurements were investigated and it was revealed that magnetic properties and magnetoimpedance of the samples deteriorate by the formation of nanocrystalline phases.


Author(s):  
Marina Biagini Cingi ◽  
Francesco Bigoli ◽  
Maurizio Lanfranchi ◽  
Maria Angela Pellinghelli ◽  
Annabella Vera ◽  
...  

2013 ◽  
Vol 203-204 ◽  
pp. 380-385 ◽  
Author(s):  
Małgorzata Karolus

Amorphous alloys based on iron, obtained by melt spinning technique, are modern and very promising soft magnetic materials. The thermal annealing at temperatures closed to the crystallization temperature can cause an increase of magnetic permeability more than 10 times i.e. the so called enhancement of soft magnetic properties effect (ESMP). It is usually explained by formation of iron nanocrystallites in amorphous surroundings or by formation of the relaxed amorphous phase. Such a microstructure leads to averaging out of magnetic anisotropy and cause the ESMP.


1990 ◽  
Vol 67 (9) ◽  
pp. 5388-5390 ◽  
Author(s):  
J. Q. Xiao ◽  
A. Gavrin ◽  
Gang Xiao ◽  
J. R. Childress ◽  
W. A. Bryden ◽  
...  

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