Magnetic properties of Fe and Co nanoclusters embedded in the first Cu(100) surface layer

JETP Letters ◽  
2014 ◽  
Vol 99 (11) ◽  
pp. 646-649 ◽  
Author(s):  
A. L. Klavsyuk ◽  
S. V. Kolesnikov ◽  
A. M. Saletsky
2000 ◽  
Vol 648 ◽  
Author(s):  
B. Schirmer ◽  
X. Liu ◽  
M. Wuttig

AbstractUltrathin iron films grown on Cu(100) have been found to exhibit a rich variety of structural and magnetic phases. In the present work, Fe/Ni bilayers have been prepared by molecular beam epitaxy to explore novel magnetic phenomena introduced by the ferromagnetic (FM) Ni underlayer. Unusual properties have been observed by measuring the temperature dependent magnetic properties. For 5.3 ML Fe on 7 ML Ni, a temperature dependent exchange coupling in the Fe film has been observed between the FM surface layer and FM interface layer.


1993 ◽  
Vol 07 (10) ◽  
pp. 655-672 ◽  
Author(s):  
GREGORY A. MULHOLLAN

The surface magnetism of Gd exhibits a variety of unusual phenomena. This is not to say the book has been closed on the bulk properties. Indeed, characterization of the single crystal critical behavior is an ongoing field. In this light, it is not surprising that studies of the surface magnetic properties of Gd have lagged those of the transition metal magnets. The delay has primarily been due to the difficulty in obtaining a sufficiently pure sample. We report on the methods available for creating an atomically clean surface, the newly measured surface structure, the hows and whys of the surface enhanced magnetic order displayed by Gd and finally lay to rest the possibility of antiparallel coupling of the surface layer to the bulk.


Vacuum ◽  
2015 ◽  
Vol 119 ◽  
pp. 189-195 ◽  
Author(s):  
Jun Wu ◽  
Li Zhang ◽  
Tian Gong ◽  
Jun Zhu ◽  
Qinliang Hao ◽  
...  

2006 ◽  
Vol 14 (2-3) ◽  
pp. 565-572 ◽  
Author(s):  
Vladimir Yu. Osipov ◽  
Marina Baidakova ◽  
Kazuyuki Takai ◽  
Toshiaki Enoki ◽  
Alexander Vul'

2015 ◽  
Vol 16 (4) ◽  
pp. 695-699
Author(s):  
V.S. Bushkova ◽  
A.V. Kopayev ◽  
N.I. Bushkov ◽  
B.V. Karpyk ◽  
O.M. Matkivskyi

The aim of this work was to create and study of ferrite nickel-cobalt powders, using sol-gel technology with participation of auto-combustion. Dependence of the initial permeability from the degree of substitution of cobalt cations on nickel cations is obtained. It is revealed that the crystallite size has a significant influence on the magnetic properties of the samples. With decreasing of crystallite size of nickel-cobalt ferrite Curie temperature decreases. It is shown that the smaller the particle size, the greater the thickness of the surface layer with significant violations of magnetic structure.


Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.


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