Submission #du96a

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Submission Description

Submission code: du96a
Units (SI or Gaussian): SI
Dimensionality of magnetizations (2D or 3D): 2D
Dimensionality of grid (2D or 3D): 2D
Average cell dimensions (length x width x height, in nm): 62.0 x 53.7 x 20.0
Total number of cells: 814
Initial state (uniform/random/canted): uniform positive saturation magnetization
Number of field states calculated (including +/-50 mT (+/-500 Oe)): 396
Canting angle of applied field from nominal axis (degrees): +1
Demag calculation technique: Direct calculation
Hardware: processor type/speed (MHz): 50MHz SuperSPARC
          main memory size (MB): 48 (per processor)
          L1/L2 cache size (KB/KB): 36KB on-chip cache per processor 
Execution time (minutes): x-loop (short):	1200
                          y-loop (long):	 714
Remanent magnetization (m_x,m_y,m_z) (reduced units),
                         x-loop (short): (0.0061,0.00011,0) 
                         y-loop (long):  (-0.023,0.83,0)    
Coercive field H_c (mT or Oe): x-loop (short):   0.517 Oe  
                               y-loop (long):	23.8 Oe
Special conditions:
Other comments: hexagonal cells
		PostScript files have y-axis horizontal, x-axis vertical.
		In x-loop data, mx and my are the projections of the
			component of m along the applied field axis onto 
			the x- and y-axes, NOT the actual mx and my values.
		In y-loop data, this was corrected.

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Hysteresis Loops

Y-axis hysteresis loop

X-axis hysteresis loop

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Vector Images at Remanence

Remanent state after saturation along the long axis (rotated ccw 90°):
Multi-domain structure with vortices

Remanent state after saturation along the short axis (rotated ccw 90°):
Multi-domain structure with vortices

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Grayscale Pictures at Remanence

Remanent state after saturation along the long (y-) axis:
x-component: Multi-domain structure with vortices. y-component: Multi-domain structure with vortices

Remanent state after saturation along the short (x-) axis:
x-component: Multi-domain structure with vortices. y-component: Multi-domain structure with vortices


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Direct questions/comments to mumag-prob1@cobalt.nist.gov
02-Jul-2008