Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Fe 57 Mössbauer study of L10 ordering in Fe57∕Pt multilayers
View through CrossRef
The magnetic and structural properties of equiatomic FePt alloy obtained from the thermal annealing of [Fe57(19Å)∕Pt(25Å)]×10 multilayer have been studied as a function of vacuum annealing at different temperatures. The multilayers are prepared by ion beam sputtering. X-ray reflectivity (XRR), x-ray diffraction (XRD), magneto-optical Kerr effect, and conversion electron Mössbauer spectroscopy are used to characterize the as-deposited and annealed multilayers. Using XRR it is observed that due to intermixing FePt alloy formation takes place with annealing. The XRD indicated the presence of superstructure peaks due to fct FePt phase at 350°C and above. Mössbauer measurements indicated a clear evidence for the strong exchange coupling between the soft fcc FePt and hard fct FePt phases. The results indicate that the multilayer structure does not transform directly to the ordered fct FePt, rather first a fcc FePt phase is formed and subsequently it gets converted into the fct FePt phase as a function of annealing.
Title: Fe
57
Mössbauer study of L10 ordering in Fe57∕Pt multilayers
Description:
The magnetic and structural properties of equiatomic FePt alloy obtained from the thermal annealing of [Fe57(19Å)∕Pt(25Å)]×10 multilayer have been studied as a function of vacuum annealing at different temperatures.
The multilayers are prepared by ion beam sputtering.
X-ray reflectivity (XRR), x-ray diffraction (XRD), magneto-optical Kerr effect, and conversion electron Mössbauer spectroscopy are used to characterize the as-deposited and annealed multilayers.
Using XRR it is observed that due to intermixing FePt alloy formation takes place with annealing.
The XRD indicated the presence of superstructure peaks due to fct FePt phase at 350°C and above.
Mössbauer measurements indicated a clear evidence for the strong exchange coupling between the soft fcc FePt and hard fct FePt phases.
The results indicate that the multilayer structure does not transform directly to the ordered fct FePt, rather first a fcc FePt phase is formed and subsequently it gets converted into the fct FePt phase as a function of annealing.
Related Results
Mössbauer Spectrometry
Mössbauer Spectrometry
AbstractMössbauer spectrometry is based on the quantum‐mechanical “Mössbauer effect,” which provides a nonintuitive link between nuclear and solid‐state physics. Mössbauer spectrom...
Usability Evaluation of Self-Ordering Kiosks in Fast Food Restaurants
Usability Evaluation of Self-Ordering Kiosks in Fast Food Restaurants
In recent years, the introduction of technology and digital management into the service industry has gradually changed consumers' lifestyles. With the popularization of equipment s...
Private Ordering
Private Ordering
The sharing of regulatory authority with private actors ("private ordering") has lengthy historical precedent and, in recent years, has been rapidly expanding in scope, domesticall...
Mössbauer Spectrometry
Mössbauer Spectrometry
AbstractMössbauer spectrometry provides unique measurements of electronic, magnetic, and structural properties within materials. A Mössbauer spectrum is an intensity of γ‐ray absor...
Mössbauer morphological analysis of Fe-filled multiwalled carbon nanotube samples
Mössbauer morphological analysis of Fe-filled multiwalled carbon nanotube samples
We have performed morphological analysis of samples of Fe nanowires encapsulated into aligned multiwalled carbon nanotubes (Fe-MWCNTs) via Fe57 Mössbauer spectroscopy. The aligned ...
L10 versus Leq—A User's Perspective
L10 versus Leq—A User's Perspective
The Federal Highway Administration (FHWA) regulation tor highway traffic noise analysis, FHPM 7-7-3, allows for the use of either L10 (sound level exceeded 10 percent of the time) ...
ATTAINMENT OF PHASE EQUILBRIUM IN MULTILAYERS
ATTAINMENT OF PHASE EQUILBRIUM IN MULTILAYERS
Structural, phase and chemical stabilities of multilayers Mo-Si, MOSi2- Si, W-Si, WSi2-Si, Cr-Sc, W-Sc, Mo-B4C, Mo−(B+C), Mo2B5-B4C, Cr3C2-C, TiC-C, Ti-Be and others were studied i...
Role of Disordered Precursor in L10 Phase Formation in FePt-Based Nanocomposite Magnet
Role of Disordered Precursor in L10 Phase Formation in FePt-Based Nanocomposite Magnet
In order to prove the usefulness of having a structurally disordered precursor to the formation of FePt L10 phase and to facilitate the co-existence of exchange coupled hard and so...