Growth and properties of new wide-gap quantum well structures: Zn1−xMnxSe/Zn1−yCdySe

Abstract We report the MBE growth and characterization of a new system of wide-gap II–VI heterostructures: Zn 1−x Mn x Se/Zn 1−y Cd ity Se. We have grown single and multiple quantum well structures as well as superlattices with low lattice mismatch (⩽0.3%) and with good interface quality for x ⩽0.30, y ⩽0.25. All these structures show robust confinement effects and efficient excitonic luminescence in the blue-green spectral region. Magneto-optical measurements yield a valence band offset of 30±5 meV.