Structure, energy spectra and magnetic properties of poly(m-aniline)s

1994 ◽  
Vol 3 (4) ◽  
pp. 803-815 ◽  
Author(s):  
Galia Madjarova ◽  
Martin Baumgarten ◽  
Klaus Müllen ◽  
Nikolai Tyutyulkov
Keyword(s):  
Magnetic Properties ◽  
Energy Spectra

Energy spectra and magnetic properties of diatomic molecules in the presence of magnetic and AB fields with the inversely quadratic Yukawa potential

2021 ◽  
Vol 75 (1) ◽  
Author(s):  
Ridha Horchani ◽  
Hiyam Al-Aamri ◽  
Noor Al-Kindi ◽  
Akpan N. Ikot ◽  
Uduakobong S. Okorie ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Yukawa Potential ◽  
Diatomic Molecules ◽  
Energy Spectra

Energy spectra and magnetic properties of radialenes, dendralenes and their poly-radical ions. A new class of polaronic high-spin π-systems

1994 ◽  
Vol 189 (1) ◽  
pp. 83-97 ◽  
Author(s):  
N. Tyutyulkov ◽  
F. Dietz ◽  
K. Müllen ◽  
M. Baumgarten ◽  
S. Karabunarliev
Keyword(s):  
Magnetic Properties ◽  
High Spin ◽  
Energy Spectra ◽  
Radical Ions ◽  
New Class

Structure and Properties of Non-classical Polymers. XV. 1D Polymers Possessing Two Bands with Ferromagnetically Coupled Electrons

2010 ◽  
Vol 65 (1) ◽  
pp. 49-56
Author(s):  
Nikolai Tyutyulkov ◽  
Nedko Drebov ◽  
Klaus Müllen ◽  
Fritz Dietz
Keyword(s):  
Magnetic Properties ◽  
Energy Spectra ◽  
Structure And Properties ◽  
Band Theory ◽  
New Class

The energy spectra and magnetic properties of a new class of non-classical (non-Kekulé) 1D polymers, having two bands with magnetically coupled electrons, have been investigated by manyelectron band theory

scholarly journals Structure and magnetic properties of Si0.97Ge0.03 whiskers

2018 ◽  
Vol 19 (1) ◽  
pp. 14-20
Author(s):  
Yu. V. Pavlovskyy ◽  
G. Luka ◽  
I.P. Ostrovskyy ◽  
N.T. Pavlovska
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Chemical Etching ◽  
Chemical Transport ◽  
Energy Spectra ◽  
X Rays ◽  
Surface Shell ◽  
Structural And Magnetic Properties ◽  
Scanning Electron ◽  
Significant Concentration

By the method of chemical transport reactions in the closed halogen system Si-Au-Pt-B-Br, whiskers Si<sub>1-x</sub>Ge<sub>x</sub> x = 0.01-0.08 of transverse dimensions 0.1-100 μm were grown. Structural and magnetic properties of the obtained crystals are investigated. The method of scanning electron microscopy showeds that on the surface of needle-like crystals, with transverse dimensions of 50-80 microns, a porous shell with a thickness of 50-60 nm is present. From the analysis of the energy spectra of X-rays, it was found that the surface shell contains significant concentration atoms of oxygen and of carbon. In turn, oxygen and carbon peaks were not detected on the inner layers of samples. It has been established that the chemical etching of the surface layer of crystals leads to the improvement of their structural and magnetic properties.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Microstructure in soft magnetic E3 (S1, Al) (Sendust) alloys

1988 ◽  
Vol 46 ◽  
pp. 770-771
Author(s):  
June D. Kim
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Ternary Phase Diagram ◽  
Vertical Tube ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Soft Magnetic ◽  
Quenching Temperature ◽  
Thin Foils ◽  
Vertical Tube Furnace

Iron-base alloys containing 8-11 wt.% Si, 4-8 wt.% Al, known as “Sendust” alloys, show excellent soft magnetic properties. These magnetic properties are strongly dependent on heat treatment conditions, especially on the quenching temperature following annealing. But little has been known about the microstructure and the Fe-Si-Al ternary phase diagram has not been established. In the present investigation, transmission electron microscopy (TEM) has been used to study the microstructure in a Sendust alloy as a function of temperature.An Fe-9.34 wt.% Si-5.34 wt.% Al (approximately Fe3Si0.6Al0.4) alloy was prepared by vacuum induction melting, and homogenized at 1,200°C for 5 hrs. Specimens were heat-treated in a vertical tube furnace in air, and the temperature was controlled to an accuracy of ±2°C. Thin foils for TEM observation were prepared by jet polishing using a mixture of perchloric acid 15% and acetic acid 85% at 10V and ∼13°C. Electron microscopy was performed using a Philips EM 301 microscope.

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