Abstract
Magnetic moment measurements of CdS polycrystalline samples, pressure quenched from above the semiconducting to conducting transition pressure (40 kbars) at rates approaching 10 6 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 LN 2 temperatures at atmospheric pressure.
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