|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'506'133
Articles rated: 2609
28 April 2024 |
|
| | | | |
|
Article forum
| |
|
|
Evolution of ferromagnetic and spin-wave resonances with crystalline order in thin films of full-Heusler alloy Co2MnSi | | Himanshu Pandey
; P. C. Joshi
; R. P. Pant
; R. Prasad
; S. Auluck
; R. C. Budhani
; | | Date: |
30 May 2013 | | Abstract: | We report the evolution of magnetic moment as well as magnetic anisotropy
with crystalline order in Co$_2$MnSi thin films grown on $(100)$ MgO by pulsed
laser deposition. The films become more ordered as the annealing temperature
($T_A$) increases from 400 to 600 $^0$C. The extent of emph{L}$2_1$ ordering
in the films annealed at 600 $^0$C is $approx 96%$. The static magnetization
measurements by vibrating sample magnetometry shows a maximum moment of 4.95
$mu_B$ per formula unit with low coercivity ($H_C$ $approx$ 65 Oe) in the
films annealed at 600 $^0$C. A rigorous analysis of the azimuthal and polar
angle dependent ferromagnetic resonance (FMR) measured at several temperatures
allows determination of various anisotropy fields relevant to our system as a
function of $T_A$. Finally, we have evaluated the exchange stiffness constant
down to 100 K using spin wave modes in FMR spectra. We have also estimated the
exchange energies as well as stiffness constant by varying the lattice
parameter emph{ab-initio} using the Korringa-Kohn-Rostoker method. | | Source: | arXiv, 1305.7048 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No message found in this article forum.
You have a question or message about this article?
Ask the community and write a message in the forum.
If you want to rate this article, please use the review section..
To add a message in the forum, you need to login or register first. (free): registration page
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER