Photoluminescence studies of diluted magnetic semiconductors under hydrostatic pressure: Cd sub 1 minus x Mn sub x Te

Journal Article · · Applied Physics Communications; (USA)

OSTI ID:6287474

Prakash, M; Chandrasekhar, M; Chandrasekhar, H R ^[1]; Miotkowski, I; Ramdas, A K ^[2]

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1. Univ. of Missouri, Columbia (USA)
2. Purdue Univ., West Lafayette, IN (USA)

The authors report photoluminescence studies of the diluted magnetic semiconductor alloy Cd{sub 1{minus}x}Mn{sub x}Te for x - 0.05, 0.15 and 0.20, under hydrostatic pressure in a diamond anvil cell at 5 to 100 K. The alloys were p-doped so as to allow a study of the acceptor bound magnetic polaron. They can clearly observe the A{sup 0}x and the e-A{sup 0} transitrons. They study the separation between these as a function of pressure and temperature. The separations increase or decrease with pressure depending on the Mn concentration. They expect mechanisms such as changes in the dielectric constant, exchange integrals and wavefunction overlap to play competing roles.

• DOE Contract Number: AC02-84ER45048
• OSTI ID: 6287474
• Journal Information: Applied Physics Communications; (USA), Vol. 10:1-2; ISSN 0277-9374
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
CADMIUM TELLURIDES
PHOTOLUMINESCENCE
MANGANESE TELLURIDES
LOW TEMPERATURE
PRESSURE DEPENDENCE
SEMICONDUCTOR MATERIALS
TEMPERATURE DEPENDENCE
ULTRALOW TEMPERATURE
CADMIUM COMPOUNDS
CHALCOGENIDES
LUMINESCENCE
MANGANESE COMPOUNDS
MATERIALS
TELLURIDES
TELLURIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
400102* - Chemical & Spectral Procedures
360603 - Materials- Properties