W. Hansen, T.P. Smith, et al.
Physical Review Letters
A planar dc SQUID with integrated pickup loops and field coils has allowed precise ac magnetic susceptibility measurements of Cd1-xMnxTe-CdTe superlattices as a function of temperature and applied magnetic field. The spin-glass transition in 86-Athick magnetic layers broadens and disappears as the thickness is reduced to 18 A, suggesting the inability of the 2D system to support long-range spin-glass order. Novel hysteretic effects are seen in the thinnest layers. © 1987 The American Physical Society.
W. Hansen, T.P. Smith, et al.
Physical Review Letters
P. Manuel, G.A. Sai-Halasz, et al.
Physical Review Letters
L.L. Chang, L. Esaki, et al.
Applied Physics Letters
L.L. Chang
Solid-State Electronics