X-ray magnetic circular dichroism and photoemission study of the diluted ferromagnetic semiconductor Zn${}_{1-x}$Cr${}_x$Te

Abstract

We have performed x-ray magnetic circular dichroism (XMCD) and valence-band photoemission studies of the diluted ferromagnetic semiconductor Zn${}_{1-x}$Cr${}_x$Te. XMCD signals due to ferromagnetism were observed at the Cr 2p absorption edge. Comparison with atomic multiplet calculations suggests that the magnetically active component of the Cr ion was divalent under the tetrahedral crystal field with tetragonal distortion along the crystalline a-, b-, and c-axes. In the valence-band spectra, spectral weight near the Fermi level was strongly suppressed, suggesting the importance of Jahn-Teller effect and the strong Coulomb interaction between the Cr 3d electrons.

References in corpus (2)

• Origin and control of high-temperature ferromagnetism in semiconductors
• Significant enhancement of ferromagnetism in Zn${}_{1-x}$Cr${}_x$Te doped with iodine as an n-type dopant

Cited by in corpus (4)

• Local electronic structure of Cr in the II-VI diluted ferromagnetic semiconductor Zn${}_{1-x}$Cr${}_x$Te
• Cr doping-induced ferromagnetism in the spin-glass Cd1-xMnxTe studied by x-ray magnetic circular dichroism
• Uncovering the lowest thickness limit for room-temperature ferromagnetism of Cr${}_{1.6}$Te${}_2$
• Orbital mixing and strong Hund's coupling stabilize spin order in van der Waals ferromagnet CrI3