ChemInform Abstract: Spin-equilibrium Iron(III) Complexes. Part l. Syntheses and Magnetic Properties of a New Family of Spin Cross-over Iron(III) Complexes with a Unidentate Ligand over a Wide Range of the Spectrochemical Series and a Quinquedentate Ligan

The solubility diagram of the NiSeO3-SeO2-H2O system at 25 °C was studied, and on its basis, Ni(HSeO3)2.2 H2O was prepared. This selenite and NiSeO3.2 H2O were investigated by infrared absorption spectroscopy and by electronic reflectance spectroscopy and their magnetic properties were determined. Based on the infrared spectra, the force constants of the selenium-oxygen bonds were determined and the hydrogen bonding was characterized. The electronic reflectance spectra and the magnetic parameters indicate an octahedral arrangement of the coordination sphere of the nickel cation and characterize the selenite anion as a ligand that in the spectrochemical series assumes a position between the fluoride anion and water and in the nephelauxetic series, between ethylenediamine and the chloride anion.

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Suppression of Ferromagnetism in EuxCa1-xB6

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.190.97 ◽

2012 ◽

Vol 190 ◽

pp. 97-100 ◽

Cited By ~ 1

Author(s):

V.V. Glushkov ◽

A.V. Kuznetsov ◽

I. Sannikov ◽

A.V. Bogach ◽

S.V. Demishev ◽

...

Keyword(s):

Magnetic Properties ◽

Magnetic Susceptibility ◽

Curie Temperature ◽

Single Crystals ◽

Effective Magnetic Moment ◽

Paramagnetic State ◽

Low Field ◽

Wide Range ◽

Free Ion ◽

The Eu

We report the magnetic properties of EuxCa1-xB6 single crystals (0.756x1) studied in the wide range of temperatures (1.8-300 K) and magnetic fields (up to 50 kOe). It was found that low field magnetic susceptibility χ (T) follows the Curie-Weiss law χ~(T-Θp)-1 at high temperatures for all the concentrations studied. The effective magnetic moment of the Eu2+ ion estimated from the data diminishes from the free ion value μeff7.93μB (μB - Bohr magneton) for x=1 to μeff7.3μB for x=0.756. A universal behavior of magnetic susceptibility χ~(T-Θ)-α (α=1.5) is detected close to the Curie temperature TC in the paramagnetic state at both metallic (x>xC~0.8) and dielectric (xC.

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Microstructure and magnetic properties of Nd-Fe-B-(Re, Ti) alloys

Nukleonika ◽

10.1515/nuka-2015-0008 ◽

2015 ◽

Vol 60 (1) ◽

pp. 29-33

Author(s):

Mariusz Hasiak

Keyword(s):

Magnetic Properties ◽

Phase Composition ◽

Volume Fraction ◽

Magnetic Characteristics ◽

Ti Alloys ◽

Wide Range ◽

Magnetically Hard ◽

Ti Addition ◽

Microstructure And Magnetic Properties

Abstract The microstructure and magnetic properties of nanocomposite hard magnetic Nd-Fe-B-(Re, Ti) materials with different Nd and Fe contents are studied. The role of Re and Ti addition in phase composition and volume fraction of the Nd-Fe-B phase is determined. All samples are annealed at the same temperature of 993 K for 10 min. Mössbauer spectroscopy shows that the addition of 4 at.% of Re to the Nd8Fe78B14 alloy leads to creation of an ineligible amount of the magnetically hard Nd2Fe14B phase. Moreover, the microstructure and magnetic characteristics recorded in a wide range of temperatures for the Nd8Fe79−xB13Mx (x = 4; M = Re or Ti) alloys are also analyzed.

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Synthesis, structures, adsorption behaviour and magnetic properties of a new family of polynuclear iron clusters

Dalton Transactions ◽

10.1039/c000126k ◽

2010 ◽

Vol 39 (20) ◽

pp. 4893 ◽

Cited By ~ 21

Author(s):

Yan-Li Miao ◽

Jun-Liang Liu ◽

Zhuo-Jia Lin ◽

Yong-Cong Ou ◽

Ji-Dong Leng ◽

...

Keyword(s):

Magnetic Properties ◽

Adsorption Behaviour ◽

Iron Clusters ◽

New Family

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Synthesis, structure and magnetic properties of a new family of chiral metal(II) citramalates

Inorganica Chimica Acta ◽

10.1016/j.ica.2006.08.034 ◽

2007 ◽

Vol 360 (3) ◽

pp. 1111-1120 ◽

Cited By ~ 17

Author(s):

Adel Beghidja ◽

Richard Welter ◽

Pierre Rabu ◽

Guillaume Rogez

Keyword(s):

Magnetic Properties ◽

New Family

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New family of parasupercoherent states: entanglement, uncertainties, and statistical properties

Canadian Journal of Physics ◽

10.1139/cjp-2019-0372 ◽

2020 ◽

Vol 98 (10) ◽

pp. 953-958

Author(s):

Amin Motamedinasab ◽

Azam Anbaraki ◽

Davood Afshar ◽

Mojtaba Jafarpour

Keyword(s):

Harmonic Oscillator ◽

Arbitrary Order ◽

Annihilation Operator ◽

The Other ◽

Mandel Parameter ◽

First Order ◽

New Family ◽

Wide Range ◽

New States ◽

Minimum Uncertainty

The general parasupersymmetric annihilation operator of arbitrary order does not reduce to the Kornbluth–Zypman general supersymmetric annihilation operator for the first order. In this paper, we introduce an annihilation operator for a parasupersymmetric harmonic oscillator that in the first order matches with the Kornblouth–Zypman results. Then, using the latter operator, we obtain the parasupercoherent states and calculate their entanglement, uncertainties, and statistics. We observe that these states are entangled for any arbitrary order of parasupersymmetry and their entanglement goes to zero for the large values of the coherency parameter. In addition, we find that the maximum of the entanglement of parasupercoherent states is a decreasing function of the parasupersymmetry order. Moreover, these states are minimum uncertainty states for large and also small values of the coherency parameter. Furthermore, these states show squeezing in one of the quadrature operators for a wide range of the coherency parameter, while no squeezing in the other quadrature operator is observed at all. In addition, using the Mandel parameter, we find that the statistics of these new states are subPoissonian for small values of the coherency parameter.

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Electron Holography of Electromagnetic Fields

Microscopy and Microanalysis ◽

10.1017/s1431927600012186 ◽

1997 ◽

Vol 3 (S2) ◽

pp. 1059-1060

Author(s):

J.E. Bonevich

Keyword(s):

Magnetic Properties ◽

Software Package ◽

Phase Changes ◽

Nanometer Scale ◽

Objective Lens ◽

Electron Holography ◽

Wide Range ◽

Electric And Magnetic Fields ◽

Flame Burner ◽

Conventional Microscopy

Electron holography can lend crucial insights to understanding the subtle manifestations of electro-magnetism in a wide range of materials. Whereas conventional microscopy is sensitive only to the intensity, holography reveals the phase changes in coherent electron wavefronts making it a unique tool to probe electric and magnetic fields on the nanometer scale. We have employed electron holography to characterize materials for mean inner potential measurements and also their electric and magnetic properties.Electron holograms were acquired in a 300 kV FE-TEM under two optical conditions: the standard high resolution mode was employed for mean inner potential measurements; to examine the intrinsic electromagnetic states, a lower resolution mode was used whereby the objective lens is turned off and the diffraction lens images the specimen. Digitally acquired holograms were reconstructed with the HolograFREE software package.Nanophase TiO2 particles generated in a flame burner system were found to have unusual central features. The rutile particles appear to contain faceted voids, raising the question whether the feature is truly a void or a secondary amorphous phase.

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Tailoring structural and magnetic properties of Mn3−x Fe x Ga alloys towards multifunctional applications

IUCrJ ◽

10.1107/s205225251801326x ◽

2018 ◽

Vol 5 (6) ◽

pp. 794-800 ◽

Cited By ~ 21

Author(s):

Z.H. Liu ◽

Z. J. Tang ◽

J. G. Tan ◽

Y. J. Zhang ◽

Z. G. Wu ◽

...

Keyword(s):

Heat Treatment ◽

Magnetic Properties ◽

Hexagonal Structure ◽

Spin Transfer Torque ◽

Tetragonal Structure ◽

Practical Applications ◽

Wide Range ◽

Multiple Structures ◽

Structural And Magnetic Properties ◽

Ice Water

This study investigated the structural and magnetic properties of Mn3−x Fe x Ga alloys (x = 0, 0.2, 0.4, 0.6, 0.8, 1) under different heat-treatment conditions. A tetragonal structure was observed in samples that were heat treated at 623 K for three days followed by quenching in ice water. These tetragonal alloys present large coercive fields in the range 0.8–5 kOe and low saturation magnetization, and have great potential for application in spin-transfer torque-based devices. A hexagonal structure was observed in samples subjected to heat treatment at 883 K for three days following quenching in ice water. A moderate decrease in the coercive field has been observed for the hexagonal alloys compared with those with a tetragonal structure. However, the Mn3−x Fe x Ga alloys with a hexagonal structure exhibit other attractive magnetic properties, including collinear and non-collinear magnetic properties, holding high promise for technological applications. A face-centred-cubic (f.c.c.) structure was observed when subjected to annealing at 1073 K for three days followed by quenching in ice water. In contrast to the tetragonal and hexagonal structures, all f.c.c. alloys exhibit antiferromagnetic behaviour. This versatile material can display a wide range of multi-functionalities attributed to its tuneable crystal structure. This investigation will guide the design of multiple structures of these materials in order to utilise the wide functionalities for practical applications.

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Halogen-bonding in a new family of tris(haloanilato)metallate(iii) magnetic molecular building blocks

Dalton Transactions ◽

10.1039/c4dt00127c ◽

2014 ◽

Vol 43 (19) ◽

pp. 7006-7019 ◽

Cited By ~ 34

Author(s):

Matteo Atzori ◽

Flavia Artizzu ◽

Elisa Sessini ◽

Luciano Marchiò ◽

Danilo Loche ◽

...

Keyword(s):

Magnetic Properties ◽

Dft Calculations ◽

Crystal Structures ◽

General Formula ◽

Halogen Bonding ◽

Building Blocks ◽

New Family ◽

Molecular Building Blocks

Here we report on new tris(haloanilato)metallate(iii) complexes with general formula [M(X2An)3]3−, their crystal structures, DFT calculations and magnetic properties.

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