Magnetic Properties of Co2On (n = 1-9, 12) Nanoparticles

2010 ◽  
Vol 165 ◽  
pp. 207-209 ◽  
Author(s):  
J. Tamulienė ◽  
Rimas Vaisnoras ◽  
Gonsal Badenes ◽  
Mindaugas Leonas Balevicius
Keyword(s):  
Magnetic Properties ◽  
Quantum Chemistry ◽  
Small Particles ◽  
Research Results ◽  
Chemistry Research

In this paper we discuss magnetic properties of ConOm (n = 2,6, m = 0-9,12) nanoparticles. Based on quantum chemistry research results we present and consider reasons due to which magnetic properties of small particles are different.

Thermodynamics and Control of Open Quantum Systems

2021 ◽  
Author(s):  
Gershon Kurizki ◽  
Abraham G. Kofman
Keyword(s):  
Quantum Chemistry ◽  
Quantum Physics ◽  
Open Quantum Systems ◽  
Condensed Matter ◽  
Quantum Systems ◽  
Open Quantum ◽  
Heat Engines ◽  
Chemistry Research ◽  
And Control ◽  
Quantum Thermodynamic

The control of open quantum systems and their associated quantum thermodynamic properties is a topic of growing importance in modern quantum physics and quantum chemistry research. This unique and self-contained book presents a unifying perspective of such open quantum systems, first describing the fundamental theory behind these formidably complex systems, before introducing the models and techniques that are employed to control their quantum thermodynamics processes. A detailed discussion of real quantum devices is also covered, including quantum heat engines and quantum refrigerators. The theory of open quantum systems is developed pedagogically, from first principles, and the book is accessible to graduate students and researchers working in atomic physics, quantum information, condensed matter physics, and quantum chemistry.

scholarly journals Structure and magnetic properties of Co-Zn substituted hexagonal ferrites

2018 ◽  
Vol 197 ◽  
pp. 02007
Author(s):  
Erfan Handoko ◽  
Anggoro B S ◽  
Iwan Sugihartono ◽  
Mangasi AM ◽  
Dini Siti Nurwulan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Phase ◽  
Hexagonal Ferrites ◽  
X Ray Diffraction ◽  
Small Particles ◽  
Scanning Electron Microscopy Micrographs ◽  
Ceramic Method ◽  
X Ray ◽  
Structural And Magnetic Properties ◽  
Substitutional Effect

In In this study to understand the substitutional effect of Co-Zn on structural and magnetic properties of the BaFe12-2xCoxZnxO19 M-type hexagonal ferrites with concentration (x= 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were synthesized by the ceramic method. The results of x-ray diffraction show polycrystalline with single phase. Scanning electron microscopy micrographs shows the hexagonal ferrites that are composed of small particles with large porosity, roughly of spherical shapes. The substitution of Fe3+ ion by Co2+ and Zn2+ has changed magnetic properties of hexagonal ferrites.

scholarly journals The first find of silver nuggets in gold placers of Subpolar Urals

2019 ◽  
Vol 486 (6) ◽  
pp. 714-717
Author(s):  
T. P. Mayorova ◽  
S. K. Kuznetsov ◽  
V. N. Filippov
Keyword(s):  
Primary Sources ◽  
Small Particles ◽  
Research Results ◽  
Subpolar Urals ◽  
Mineral Phases ◽  
Gold Silver ◽  
Native Bismuth ◽  
First Time ◽  
Gold Bearing

For the first time, silver nuggets were found in the gold-bearing placers of the Subpolar Urals. Galena, cassiterite, wolframite, cosalite, tetradymite, ferberite, cobaltine, joseite-B, native bismuth associate with silver and gold. Silver is mainly represented by poorly rounded and non-round gray lumpy, slightly flattened, elongated particles of 2-2.5 cm size. As part of silver, Au and Hg sometimes contain impurities. Inclusions are represented by small particles of gold, bismuth and tellurium mineral phases. Research results indicate a fairly widespread development of Au-Ag-Bi-Te mineralization, the primary manifestations of which are not yet known in the region. Relatively weak roundness of silver nuggets, presence of major and poorly rounded gold indicates the proximity of the primary sources to gold-bearing placers.

scholarly journals Quantum Chemistry Research on the Absolute Hardness: Introduction to a Computational Chemistry Experiment

Daxue Huaxue ◽  
2020 ◽  
Vol 0 (0) ◽  
pp. 4-0
Author(s):  
Song Yang ◽  
Yihan Tang ◽  
Jiawei Xu ◽  
Ruoxi Liu ◽  
Bing Xue ◽  
...  
Keyword(s):  
Quantum Chemistry ◽  
Computational Chemistry ◽  
Chemistry Research ◽  
The Absolute ◽  
Chemistry Experiment

scholarly journals BaFe12O19 SMALL PARTICLES : FORMATION. PARTICLE SIZE AND MAGNETIC PROPERTIES

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1849-C8-1850 ◽  
Author(s):  
R. Ardiaca ◽  
M. Medarde ◽  
X. Obradors ◽  
M. Vallet ◽  
M. Pernet ◽  
...  
Keyword(s):  
Particle Size ◽  
Magnetic Properties ◽  
Small Particles

Magnetoelastic Effects in Nanostructures

2010 ◽  
Vol 168-169 ◽  
pp. 177-184
Author(s):  
Jose Ignacio Arnaudas ◽  
A. Badia-Majós ◽  
L. Berbil-Bautista ◽  
M. Bode ◽  
F.J. Castaño ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Structure ◽  
Practical Interest ◽  
Structural Defects ◽  
Magnetoelastic Interaction ◽  
Strain Fields ◽  
Research Results ◽  
Cu Nanowires ◽  
Plane Anisotropy ◽  
The Relationship

Understanding of the relationship between stress and magnetic properties in nanostructures is of both fundamental and practical interest. In the present paper, we illustrate this statement with some recent research results. First, we will see how the magnetoelastic interaction in Dy films controls the magnetic structure at the nanoscale due to the presence of the structural defects and their associated strain fields. Then, it will be shown how the magnetoelastic contribution can dominate the total anisotropy in epitaxial (100) oriented Cu/Ni/Cu nanowires, where the film patterning process performed to produce the nanowires induces strain changes large enough to favor a net in-plane anisotropy transverse to the lines.

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