Diamagnetic current measurements in a solid-state plasma

Abstract

Time resolved detection of two-plasmon decay using three-halves harmonic emission on the National Ignition Facility Review of Scientific Instruments 89, 083504 (2018) Using a resonant structure, we have established large pressure gradients in a magnetized indium antimonide (InSb) plasma. This produces diamagnetic current in the milliampere range. The magnetic field generated by the current is sensed with a small magnetic coil. The operating frequency is about 230 kHz with a power level on the order of 100 mW. The InSb is magnetized with a 1 T magnetic field produced with permanent magnets. We show good agreement between our experimental measurements and the expected diamagnetic current.

Ohmic and Diamagnetic Currents Contribution on the Electromagnetic Penetration Depth of a Conducting Surface

“…The effect of Ohmic current has been widely studied in surface designs [9], [10]. On the other hand, the study of diamagnetic current is gaining increasing attention in physics [11], [12] and related areas [13], [14].…”