Analysis of thermal magnetic noise in spin-valve GMR heads by using micromagnetic simulation

2005 ◽  
Vol 97 (10) ◽  
pp. 10N705 ◽  
Author(s):  
H. Akimoto ◽  
H. Kanai ◽  
Y. Uehara ◽  
T. Ishizuka ◽  
S. Kameyama
Keyword(s):  
Spin Valve ◽  
Micromagnetic Simulation ◽  
Magnetic Noise

Micromagnetic simulation for detection of a single magnetic microbead or nanobead by spin-valve sensors

2006 ◽  
Vol 99 (8) ◽  
pp. 08G102 ◽  
Author(s):  
Yaowen Liu ◽  
Wei Jin ◽  
Yaping Yang ◽  
Zhiguo Wang
Keyword(s):  
Spin Valve ◽  
Micromagnetic Simulation ◽  
Magnetic Microbead

Thermal magnetic noise and spectra in spin valve heads

2002 ◽  
Vol 91 (10) ◽  
pp. 7273 ◽  
Author(s):  
Jian-Gang Zhu
Keyword(s):  
Spin Valve ◽  
Magnetic Noise

scholarly journals Micromagnetic Simulation of Spin Transfer Torque Magnetization Precession Phase Diagram in a Spin-Valve Nanopillar under External Magnetic Fields

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
H. B. Huang ◽  
X. Q. Ma ◽  
Z. H. Liu ◽  
X. M. Shi ◽  
T. Yue ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Magnetic Fields ◽  
Dynamic Balance ◽  
Spin Valve ◽  
Spin Transfer Torque ◽  
Micromagnetic Simulation ◽  
Spin Transfer ◽  
Magnetization Distribution ◽  
Magnetization Precession ◽  
Evolution Behavior

We investigated spin transfer torque magnetization precession in a nanoscale pillar spin-valve under external magnetic fields using micromagnetic simulation. The phase diagram of the magnetization precession is calculated and categorized into four states according to their characteristics. Of the four states, the precessional state has two different modes: steady precession mode and substeady precession mode. The different modes originate from the dynamic balance between the spin transfer torque and the Gilbert damping torque. Furthermore, we reported the behavior of the temporal evolutions of magnetization components in steady precession mode at the condition of the applied magnetic field using the orbit projection method and explaining perfectly the magnetization components evolution behavior. In addition, a result of a nonuniform magnetization distribution is observed in the free layer due to the excitation of non-uniform mode.

Micromagnetic simulation of spin-transfer switching in a full-Heusler Co2FeAl0.5Si0.5 alloy spin-valve nanopillar

2011 ◽  
Vol 110 (3) ◽  
pp. 033913 ◽  
Author(s):  
H. B. Huang ◽  
X. Q. Ma ◽  
Z. H. Liu ◽  
F. Y. Meng ◽  
Z. H. Xiao ◽  
...  
Keyword(s):  
Spin Valve ◽  
Micromagnetic Simulation ◽  
Spin Transfer ◽  
Full Heusler

scholarly journals Analysis of the Thermal Magnetic Noise Spectrum of TMR Heads by Micromagnetic Simulation

2006 ◽  
Vol 30 (2) ◽  
pp. 82-85 ◽  
Author(s):  
H. Akimoto ◽  
N. Mukouyama ◽  
H. Kanai ◽  
Y. Uehara
Keyword(s):  
Noise Spectrum ◽  
Micromagnetic Simulation ◽  
Magnetic Noise

Temperature and field dependence of high-frequency magnetic noise in spin valve devices

2003 ◽  
Vol 82 (1) ◽  
pp. 91-93 ◽  
Author(s):  
N. Stutzke ◽  
S. L. Burkett ◽  
S. E. Russek
Keyword(s):  
Field Dependence ◽  
High Frequency ◽  
Spin Valve ◽  
Magnetic Noise

scholarly journals Micromagnetic simulation of high-power spin-torque oscillator in half-metallic Heusler alloy spin valve nanopillar

AIP Advances ◽  
2013 ◽  
Vol 3 (3) ◽  
pp. 032132 ◽  
Author(s):  
H. B. Huang ◽  
X. Q. Ma ◽  
Z. H. Liu ◽  
C. P. Zhao ◽  
L. Q. Chen
Keyword(s):  
High Power ◽  
Heusler Alloy ◽  
Spin Valve ◽  
Micromagnetic Simulation ◽  
Spin Torque ◽  
Half Metallic
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