Electron cooling times in PbTe Landau quantized wires and dots

B. N. Murdin, C. M. Ciesla, P. C. Findlay, C. J G M Langerak, C. R. Pidgeon, J. Oswald, G. Springholz, G. Bauer

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We present measurements of electron cooling times in 'quasi' quantum wires and dots as a function of the z-confinement. The states were created by application of a magnetic field along the growth direction of bulk material, a wide parabolic well and a narrow quantum well based on the IV-VI material PbTe. These three systems thus provide a progression of successively 1D-like, weakly 0D-like and 0D-like density of states. The measurements were all made above the LO-phonon energy, and the increasing confinement is represented in the LO-phonon cooling times observed, which become successively longer.

Original languageEnglish
Pages (from-to)809-816
Number of pages8
JournalSemiconductor Science and Technology
Issue number9
Publication statusPublished - Sept 1999


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