Title :
The temperature dependent fractal dimension of magneto-conductance fluctuations in semiconductor billiards
Author :
Micolich, A.P. ; Taylor, R.P. ; Newbury, R. ; Bird, J.P. ; Aoyagi, Y. ; Sugano, T.
Author_Institution :
Sch. of Phys., New South Wales Univ., Sydney, NSW, Australia
Abstract :
We present a study of fractal behaviour in the magneto-conductance fluctuations of semiconductor billiards as function of temperature. Non-zero temperatures introduce a finite phase coherence time and we find that this does not suppress fractal behaviour in the experimental data. Instead we show that the fractal dimension decreases with increasing temperature and present a remarkable similarity between the fractal dimension and the phase coherence time
Keywords :
fractals; galvanomagnetic effects; quantum interference phenomena; two-dimensional electron gas; magneto-conductance fluctuations; phase coherence time; semiconductor billiards; temperature dependent fractal dimension; Ballistic transport; Coherence; Conducting materials; Electrons; Fluctuations; Fractals; Geometry; Interference; Magnetic semiconductors; Temperature dependence;
Conference_Titel :
Optoelectronic and Microelectronic Materials Devices, 1998. Proceedings. 1998 Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-4513-4
DOI :
10.1109/COMMAD.1998.791692
