Structure and magnetism of the solid solution GexFe4−xNy (0 ≤ x ≤ 1): from a ferromagnet to a spin glass

2017 ◽  
Vol 5 (1) ◽  
pp. 166-175 ◽  
Author(s):  
T. Scholz ◽  
R. Dronskowski

The experimental and theoretical study of the solid solution GexFe4−xNy (0 ≤ x ≤ 1) reveals a structural transition from the cubic to the tetragonal system as well as a magnetic transition from a ferromagnet to a spin glass accompanying the increasing germanium concentration.

2020 ◽  
Vol 494 ◽  
pp. 165821
Author(s):  
Chaocheng Liu ◽  
Xucai Kan ◽  
Xiansong Liu ◽  
Shuangjiu Feng ◽  
Jiyu Hu ◽  
...  

2016 ◽  
Vol 18 (32) ◽  
pp. 22606-22616 ◽  
Author(s):  
A. García-Fuente ◽  
L. J. Gallego ◽  
A. Vega

We present a systematic theoretical study of the electronic transport in hydrogen passivated zigzag graphene and silicene nanoribbons with between zero and four neighboring H atoms on one edge replaced by magnetic transition metals (Fe, Co, and Ni).


1984 ◽  
Vol 53 (9) ◽  
pp. 3153-3159 ◽  
Author(s):  
Hideoki Kadomatsu ◽  
Takanori Tsutaoka ◽  
Hiroshi Fujiwara

Metals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 2
Author(s):  
Masataka Mizuno ◽  
Kazuki Sugita ◽  
Hideki Araki

To theoretically examine the structural transition of vacancy–solute complexes in Al–Mg–Si alloys, we performed first-principles calculations for layered vacancy–solute complexes with additional Mg atoms. The central Mg atom in the additional Mg layer shifted to the Si layer with the increase in the number of Mg atoms to weaken the repulsive Mg–Mg interaction and to form Mg–Si bonds. When five Mg atoms were added to the layered vacancy–solute complex, the central Mg atom completely shifted to the Si layer, and a Mg vacancy was formed in the Mg layer, which indicated that the β″-eye is formed upon the addition of Mg atoms. We reproduced β″-eye formation from a solid solution with a vacancy using first-principles-based Monte Carlo simulations. Once the β″-eye was formed on the layered vacancy–solute complex, the process can be repeated by the formation of alternate Mg and Si layers along [010] β″. These results clearly indicate that the layered vacancy–solute complex plays an important role in β″-eye formation.


2020 ◽  
Vol 101 (21) ◽  
Author(s):  
Pascal Puphal ◽  
Sarah Krebber ◽  
Emmanuelle Suard ◽  
Robert Cubitt ◽  
Chennan Wang ◽  
...  

1995 ◽  
Vol 52 (17) ◽  
pp. 12829-12832 ◽  
Author(s):  
J. Tang ◽  
W. Zhao ◽  
C. J. O’Connor ◽  
C. Tao ◽  
M. Zhao ◽  
...  

2000 ◽  
Vol 11 (3) ◽  
pp. 395-402 ◽  
Author(s):  
C. Barreteau ◽  
M.C. Desjonquères ◽  
D. Spanjaard

1997 ◽  
Vol 475 ◽  
Author(s):  
S. Andrieu ◽  
Ph. Bauer ◽  
H. Fischer ◽  
M. Piecuch ◽  
M. Finazzi ◽  
...  

ABSTRACTIn this paper, the interrelation between structural and magnetic properties of ultra-thin Mn films epitaxially grown on (001) bcc Fe is studied. The Mn growth and in-plane structure were controlled by electron diffraction (RHEED). The structures of the Mn films were determined by using X-Ray absorption spectroscopy (SEXAFS). Finally, the magnetic properties were studied by using X-Ray magnetic circular dichroïsm (XMCD). All the experiments were performed under ultra-high vacuum. As shown by XMCD experiments, a magnetic transition is observed at 2 Mn monolayers. The analysis of RHEED and SEXAFS experimental results clearly demonstrates that a structural transition comes with this magnetic transition.


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