Title :
Thermomagnetic instability of metal-insulator phase boundary
Author :
Kudasov, Yu.B. ; Makarov, I.V. ; Pavlov, V.N.
Author_Institution :
VNIIEF, Russian Fed. Nucl. Center, Sarov, Russia
Abstract :
We consider diffusion of a magnetic field into a substance, which undergoes a metal-insulator phase transition under Joule heating. A development of a thermomagnetic instability of the interphase boundary is studied analytically and numerically. Solid solution (V/sub 1-x/Cr/sub x/)/sub 2/O/sub 3/ is taken as a model substance. In the non-linear stage the instability development shows a universal behavior that is independent on a shape of the initial disturbance.
Keywords :
chromium compounds; metal-insulator transition; solid solutions; thermomagnetic effects; vanadium compounds; (V/sub 1-x/Cr/sub x/)/sub 2/O/sub 3/ solid solution; (VCr)/sub 2/O/sub 3/; Joule heating; magnetic field diffusion; metal-insulator phase boundary; metal-insulator phase transition; nonlinear stage; thermomagnetic instability; Conductivity; Insulation; Magnetic analysis; Magnetic fields; Metal-insulator structures; Resistance heating; Shape; Solid modeling; Solid state circuits; Switches;
Conference_Titel :
Pulsed Power Plasma Science, 2001. PPPS-2001. Digest of Technical Papers
Conference_Location :
Las Vegas, NV, USA
Print_ISBN :
0-7803-7120-8
DOI :
10.1109/PPPS.2001.1001823
