About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Journal of Applied Physics
Paper
Diluted magnetic semiconductor superlattices for magnetic studies of dimensional crossover (invited)
Abstract
Diluted magnetic semiconductor Cd1-xMnxTe-CdTe superlattices with x=0.069, 0.13, 0.15, and 0.20 and various layer thicknesses were grown by molecular-beam epitaxy for optical and magnetic studies of dimensional crossover. X-ray diffraction patterns, low-temperature photoluminescence spectra, and ac magnetic susceptibility measurements were used to verify the integrity of these structures. In particular, the magnetic studies showed the spin-glass transition present in the thicker magnetic layers to broaden and eventually disappear with decreasing thickness, suggesting the inability of the two-dimensional system to support long-range spin-glass order.