scholarly journals Nanostructure of Giant Magnetoresistance Heterogeneous Alloys Ni0.20Ag0.80After Annealing

1997 ◽  
Vol 7 (C2) ◽  
pp. C2-1111-C2-1113 ◽  
Author(s):  
C. Revenant-Brizard ◽  
J. R. Regnard ◽  
J. Mimault ◽  
O. Proux ◽  
B. Dieny ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Heterogeneous Alloys

Giant magnetoresistance and microstructure in Cr-Fe and Cu-Co heterogeneous alloys

1996 ◽  
pp. 106-110
Author(s):  
K. Takanashi ◽  
J. Park ◽  
T. Sugawara ◽  
K. Hono ◽  
A. Goto ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Heterogeneous Alloys

Giant magnetoresistance and microstructure in CrFe and CuCo heterogeneous alloys

1996 ◽  
Vol 275 (1-2) ◽  
pp. 106-110 ◽  
Author(s):  
K. Takanashi ◽  
J. Park ◽  
T. Sugawara ◽  
K. Hono ◽  
A. Goto ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Heterogeneous Alloys

Preparation of Giant Magnetoresistance Co‐Cu Heterogeneous Alloys by Electrodeposition

1997 ◽  
Vol 144 (7) ◽  
pp. L193-L195 ◽  
Author(s):  
Yukimi Jyoko ◽  
Satoshi Kashiwabara ◽  
Yasunori Hayashi
Keyword(s):  
Giant Magnetoresistance ◽  
Heterogeneous Alloys

Evolution of the Nanostructure of Giant Magnetoresistance Heterogeneous Alloys CoxAg1-x Upon Annealing

1995 ◽  
Vol 400 ◽  
Author(s):  
J. R. Regnard ◽  
C. Revenant-Brizard ◽  
B. Dieny ◽  
B. Mevel ◽  
J. Mimault
Keyword(s):  
Giant Magnetoresistance ◽  
Annealing Temperature ◽  
Liquid Nitrogen Temperature ◽  
Waller Factor ◽  
Total Electron Yield ◽  
Total Electron ◽  
X Ray ◽  
Debye Waller Factor ◽  
X Ray Absorption ◽  
Heterogeneous Alloys

AbstractHeterogeneous alloys CoxAg1-x with atomic concentrations x=0.20 and 0.35, presenting giant magnetoresistance properties, have been studied by Total Electron Yield X-ray absorption spectroscopy at liquid nitrogen temperature at the Co K edge after annealings at various temperatures. For both sample concentrations, the Co atoms are mainly in small filament agglomerates for the as-deposited and low temperature annealed samples (T<150°C). In this temperature range, the local Co atomic environment is very stable and disordered. A structural change has been detected by XANES and EXAFS analysis between the 250 and 400°C annealings. After a 400°C annealing during 10 min, the nanostructures evolve towards larger, more compact and well ordered granules. The Co-Co distance varies from 0.246 to 0.248 nm as the annealing temperature increases indicating that the small filament-shaped agglomerates are under strain in the Ag matrix. The Debye-Waller factor of the Co0.35Ag0.65 samples decreases continously as the annealing temperature increases, as this factor drops suddenly after a 250°C annealing for the Co0.20Ag0.80 sample. The Co agglomeration is steadily larger for the Co0.35Ag0.65 sample than for the Co0.20Ag0.80 one. The Co-Ag contribution is negligible for the Co0.35Ag0.65 sample, as it represents approximately one third of the nearest neighbors for the Co0.20Ag0.80 sample from the as-deposit up to a 250°C annealing stage.

Thickness dependence of giant magnetoresistance of AgNiFe heterogeneous alloys films

1996 ◽  
Vol 79 (8) ◽  
pp. 5590 ◽  
Author(s):  
J. Wiggins ◽  
M. L. Watson ◽  
P. A. Gago-Sandoval ◽  
K. O’Grady
Keyword(s):  
Giant Magnetoresistance ◽  
Thickness Dependence ◽  
Heterogeneous Alloys

Quantum statistical theory of giant magnetoresistance in magnetic heterogeneous alloys

1996 ◽  
Vol 164 (1-2) ◽  
pp. 91-98 ◽  
Author(s):  
A. Vedyayev ◽  
B. Mevel ◽  
N. Ryzhanova ◽  
M. Tshiev ◽  
B. Dieny ◽  
...  
Keyword(s):  
Statistical Theory ◽  
Giant Magnetoresistance ◽  
Quantum Statistical Theory ◽  
Quantum Statistical ◽  
Heterogeneous Alloys

Giant Magnetoresistance Properties in CoFe/Cu Multilayers

1998 ◽  
Vol 22 (4_2) ◽  
pp. 537-540 ◽  
Author(s):  
Y. Seyama ◽  
M. Iijima ◽  
A. Tanaka ◽  
M. Oshiki
Keyword(s):  
Giant Magnetoresistance
Sign in / Sign up

Export Citation Format

Share Document