English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The amplitude V_0 of unidirectional periodic potential modulation introducedby a surface grating into a two-dimensional electron gas (2DEG) formed atAlGaAs/GaAs heterointerface is measured as a function of electron density n_eby analyzing commensurability oscillation of the magnetoresistance. Theelectron density is varied either by applying a bias to a metallic back gate orby illumination. The amplitude decreases with increasing density, with the rate|dV_0/dn_e| roughly an order of magnitude larger for the former method. Theresult is interpreted in terms of the rate, dE_1/d(delta E_c), of the change inthe first subband level E_1 in response to the variation of the conduction-bandedge delta E_c above the heterointerface. The rate crucially depends on thethickness of the 2DEG.Comment: 9 pages, 7 figures, LaTeX2e with jpsj2 clas

journal of the physical society of japan

Dependence of Modulation Amplitude on Electron Density in Unidirectional Lateral Superlattices: The Effect of the Thickness of the Two-dimensional Electron Gas