Interband Faraday effect in Cd/sub 1-//sub x/Mn/sub x/Se

Journal Article · Thu Dec 15 04:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.13183· OSTI ID:6615732

Oh, E; Bartholomew, D U; Ramdas, A K; Furdyna, J K; Debska, U

The interband Faraday rotation in the uniaxial diluted magnetic semiconductor Cd/sub 1-//sub x/Mn/sub x/Se, measured with the direction of propagation k-circumflex and the magnetic field H along its optic axis (c-circumflex), has been investigated for 0less than or equal tox<0.5. The Faraday rotation, positive for CdSe, becomes negative and very large when Mn/sup 2+/ replaces Cd/sup 2+/. The sign of the rotation and its dependence on x, H, and temperature T are dominated by the spin-spin exchange interaction between the spins of the 3d electrons of Mn/sup 2+/ and those of the band electrons. The dispersion of the Verdet constant is well described by the excitonic model (single-oscillator model). The antiferromagnetic coupling between Mn/sup 2+/ ions is manifested in the Faraday effect through the phenomenological effective temperature (T+T/sub AF/), as well as with hysteresis effects associated with the formation of a spin-glass phase for high x and low T.

• Research Organization: Department of Physics, Purdue University, West Lafayette, Indiana 47907
• OSTI ID: 6615732
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:18; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ANISOTROPY
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CHALCOGENIDES
CRYSTALS
DATA
EXPERIMENTAL DATA
FARADAY EFFECT
INFORMATION
MAGNETIC SEMICONDUCTORS
MANGANESE COMPOUNDS
MANGANESE SELENIDES
MATERIALS
MEDIUM TEMPERATURE
MONOCRYSTALS
NUMERICAL DATA
SELENIDES
SELENIUM COMPOUNDS
SEMICONDUCTOR MATERIALS
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE