MAGNETIC-MOMENT OF PRESSURE QUENCHED CADMIUM-SULFIDE

Magnetic moment measurements of CdS polycrystalline samples, pressure quenched from above the semiconducting to conducting transition pressure (40 kbars) at rates approaching 106 bars/sec, have been made in a vibrating sample magneto-meter to fields approaching 1000 Oersted. The samples exhibit the complex magnetic behavior of low field diamagnetism (χ > - 5 × 10-5 cgs units) transforming at fields of several hundred Oersted to positive magnetism (χ > + 3 × 10-4 cgs units). This magnetic behavior contrasts with unquenched samples which yield the normal diamagnetism of CdS (χ = - 1.5 × 10-6 cgs units). These anomalous magnetic effects are observed at both room temperatures and LN2 temperatures at atmospheric pressure. © 1979.