scholarly journals Magnetic properties of iron at high temperatures

1897 ◽  
Vol 61 (369-377) ◽  
pp. 490-491

The present note is for the purpose of correcting two points in my paper in the 'Philosophical Transactions,' A, vol. 180. First .—I was of opinion that my experiments showed that heating iron above its critical point did not entirely destroy the effects of previous magnetisation. Recent experiments I have made do not confirm this opinion.

2011 ◽  
Vol 7 (S282) ◽  
pp. 525-532 ◽  
Author(s):  
Helmut Lammer ◽  
Kristina G. Kislyakova ◽  
Petra Odert ◽  
Martin Leitzinger ◽  
Maxim L. Khodachenko ◽  
...  

AbstractThe intense stellar SXR and EUV radiation exposure at “Hot Jupiters” causes profound responses to their upper atmosphere structures. Thermospheric temperatures can reach several thousands of Kelvins, which result in dissociation of H2 to H and ionization of H to H+. Depending on the density and orbit location of the exoplanet, as a result of these high temperatures the thermosphere expands dynamically up to the Roche lobe, so that geometric blow-off with large mass loss rates and intense interaction with the stellar wind plasma can occur. UV transit observations together with advanced numerical models can be used to gain knowledge on stellar plasma and the planet's magnetic properties, as well as the upper atmosphere.


2007 ◽  
Vol 52 (9) ◽  
pp. 1058-1061
Author(s):  
O. K. Kuvandikov ◽  
Kh. O. Shakarov ◽  
Z. M. Shodiev ◽  
A. Rustamov

Nukleonika ◽  
2015 ◽  
Vol 60 (1) ◽  
pp. 11-14
Author(s):  
Mieczysław Budzyński ◽  
Viktor I. Valkov ◽  
Alexei V. Golovchan ◽  
Viktor I. Mitsiuk ◽  
Alexandr P. Sivachenko ◽  
...  

Abstract Magnetic and Mössbauer measurements were performed for MnNi0.85Fe0.15Ge. The Mössbauer data indicate that Fe atoms in MnNi0.85Fe0.15Ge are randomly distributed over two types of metal sites in hexagonal structure. At 77 K, the hyperfine magnetic fields at Fe located in different crystal sites have similar values of about 12.7 and 12.3 T. The random site distribution of the iron atoms in the non-magnetic hexagonal phase at high temperatures is confirmed by the theoretical calculations in fully relativistic Korringa –Kohn –Rostoker (KKR) method.


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