Noncanonical Wannier-Stark ladders and surface state quantization in finite crystals subjected to a homogeneous electric field
2001 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, Vol. 63, no 23, art. no.-235410 p.Article in journal (Refereed) Published
In the one-particle single band approximation, which is the basis of the original Wannier result, commonly referred to as the Wannier-Stark ladder (WSL), we have extended the concept by predicting the existence of noncanonical WSLs which are a set of evenly spaced levels tin the middle of the tilted band) with noncanonical level spacing equal to the Plank constant times (1-2m'/m)(-1) times Bloch oscillation frequency. To observe a particular WSL, the certain voltage must be applied. The latter is related to the numbers rn = 3,4,... and m' = 1,2,...
Place, publisher, year, edition, pages
2001. Vol. 63, no 23, art. no.-235410 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-49213OAI: oai:DiVA.org:liu-49213DiVA: diva2:270109