scholarly journals Synthesis and conformational properties of 1,3-dimethyl-3-phenyl-1,3-azasilinane. Low temperature dynamic NMR and computational study

ARKIVOC ◽  
2012 ◽  
Vol 2012 (5) ◽  
pp. 175-185 ◽  
Author(s):  
Bagrat A. Shainyan ◽  
Svetlana V. Kirpichenko ◽  
Erich Kleinpeter
Keyword(s):  
Low Temperature ◽  
Computational Study ◽  
Dynamic Nmr ◽  
Conformational Properties ◽  
Temperature Dynamic

Dynamic NMR and computational study of 5,5-dimethyl-3,4-di-p-tolyl-2-cylopenten-1-one

2011 ◽  
Vol 79 (5) ◽  
pp. 1798-1802 ◽  
Author(s):  
Katayoun Marjani ◽  
Mohsen Mousavi ◽  
Hossein Taherpour Nahzomi ◽  
Omid Arazi ◽  
Reza Jafari
Keyword(s):  
Computational Study ◽  
Dynamic Nmr

Low-Temperature Spin Fluctuations beyond Spin Waves

2015 ◽  
Vol 233-234 ◽  
pp. 20-24 ◽  
Author(s):  
N.B. Melnikov ◽  
B.I. Reser
Keyword(s):  
Low Temperature ◽  
Spin Fluctuation ◽  
Functional Integral ◽  
Spin Fluctuations ◽  
Integral Formalism ◽  
Ferromagnetic Metals ◽  
Wave Approximation ◽  
Dynamic Spin ◽  
Functional Integral Formalism ◽  
Temperature Dynamic

A simple low-temperature dynamic spin-fluctuation theory of ferromagnetic metals is developed. The theory is based on the functional integral formalism for the multiband Hubbard Hamiltonian and takes into account both single-site and nonlocal spin fluctuations. We show that our approach correctly reproduces the T3/2 law at low temperatures. The calculated results of magnetic properties for Fe and Fe0.65Ni0.35 Invar demonstrate that the approach works on a much wider temperature interval than the spin-wave approximation.

Low-Temperature Dynamic Nuclear Polarization

1964 ◽  
Vol 36 (3) ◽  
pp. 872-879 ◽  
Author(s):  
W. A. BARKER ◽  
MOHAN LAL NARCHAL ◽  
SUSHIL MISRA ◽  
ALBERT J. BEVOLO ◽  
FRANCIS X. HAAS ◽  
...  
Keyword(s):  
Low Temperature ◽  
Dynamic Nuclear Polarization ◽  
Nuclear Polarization ◽  
Temperature Dynamic

Low Temperature Superplasticity of Hydrostatically Extruded Mg-Al-Zn Alloys

2012 ◽  
Vol 735 ◽  
pp. 307-315 ◽  
Author(s):  
Jose Victoria-Hernandez ◽  
David Hernandez-Silva ◽  
Jan Bohlen ◽  
Sang Bong Yi ◽  
Dietmar Letzig
Keyword(s):  
Low Temperature ◽  
Magnesium Alloys ◽  
Deformation Behavior ◽  
Superplastic Behavior ◽  
Homogeneous Microstructure ◽  
Fine Grained ◽  
Dynamic Recrystallisation ◽  
Zn Alloys ◽  
Temperature Dynamic

In this work, the superplastic behavior of AZ31, AZ61 and AZ80 magnesium alloys was investigated. The alloys were hydrostatically extruded at only 150 °C to get fine grained microstructures (−2, 10−3and 10−4s−1. It was found that all alloys exhibited superplasticity at 200 °C, 175 °C and 225 °C for AZ31, AZ61 and AZ80 alloys, respectively. Low temperature dynamic recrystallisation played an important role for generating a finer and homogeneous microstructure during testing which enhances the deformation behavior of the alloys at these temperatures.

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