Exciton magnetoluminescence studies in ordered and disordered In[sub 0. 48]Ga[sub 0. 52]P semiconductor alloys

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:7187228

Jones, E D; Follstaedt, D M; Lyo, S K; Schneider, Jr, R P

We report the observation of magnetic field dependent excitonic photoluminescence energies and linewidths in ordered and disordered In[sub 0.48]Ga[sub 0.52]P alloys (lattice matched to GaAs). The photoluminescence measurements were made at 1.4 K and the applied magnetic field ranged between 0 and 13.6 tesla. With increasing magnetic fields, we observe increasing photoluminescence linewidths for disordered alloys and decreasing photoluminescence linewidths for the ordered alloys. The magnetic field dependence of the photoluminescence peak-energy shifts for all samples (ordered and disordered) is in good agreement with theoretical considerations. The presence of CuPt-type ordering was confirmed by transmission electron microscopy.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7187228
• Report Number(s): SAND-92-1584C; CONF-921101-52; ON: DE93005349
• Resource Relation: Conference: 16. Material Research Society international symposium on the scientific basis for nuclear waste management fall meeting, Boston, MA (United States), 30 Nov - 5 Dec 1992
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GALLIUM PHOSPHIDES
PHOTOLUMINESCENCE
INDIUM PHOSPHIDES
EXCITONS
LINE WIDTHS
MAGNETIC FIELDS
ORDER-DISORDER TRANSFORMATIONS
TEMPERATURE RANGE 0000-0013 K
GALLIUM COMPOUNDS
INDIUM COMPOUNDS
LUMINESCENCE
PHASE TRANSFORMATIONS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
QUASI PARTICLES
TEMPERATURE RANGE
360606* - Other Materials- Physical Properties- (1992-)