Quantum-beat recombination echoes
Hahn-Meitner-Institut Berlin, Abt. SE1 - Kekuléstr. 5,
D-12489 Berlin, Germany
Corresponding author: email@example.com
Accepted: 12 September 2001
A recombination echo phenomenon of weakly coupled electron-hole pairs in disordered semiconductors is suggested. The time-domain calculation of spin-dependent recombination within such pairs indicates that dephasing beat oscillations can take place in a magnetic field and a phase recovery due to a resonant microwave pulse is possible. This effect, which we call the quantum-beat recombination echo, is illustrated for different pulse sequences. Applications for material characterisation and quantum computing are suggested.
PACS: 72.20.Jv – Charge carriers: generation, recombination, lifetime and trapping / 76.60.Lz – Spin echoes / 76.90.+d – Other topics in magnetic resonances and relaxation
© EDP Sciences, 2001