Valley degeneracies in (111) Si quantum wells

Objective Resolve discrepancies in experimentally observed and theoretically predicted valley degeneracies Study effect of surface morphology on the electronic structure Approach Supercell tight-binding calculations to model surface miscuts Effective mass based valley-projection model to determine the directions of valley-minima of large supercells Impact Atomistic basis representation is essential to capture the effect of mono-atomic steps on the electronic structure Surface miscut of (111) Si is found to be the origin of breaking of 6 fold valley degeneracy into lower 2 fold and higher 4 fold valley degeneracies Fig: Origin of 2-4 splitting in miscut (111) Si QWs Results Flat (111) Si QW shows 6 fold valley degeneracy Miscut causes 2-4 splitting due to different effective masses in confinement direction Valley degeneracies in (111) Si quantum wells

Valley degeneracies in (111) Si quantum wells

Valley degeneracies in (111) Si quantum wells

Presentation Transcript

111

NHS 111 Paul Tattam Head of 111 (North), NHS 111

0923-111-2

Herringbone Reconstruction of Au{111}, 2 IMPORTANT PAPERS:

EPA’s Proposed 111(b) and(d) Rules

Byung I. Kim, Department of Physics, Boise State University, Boise, Idaho 83725

2 Hour Optometric Math

Handling Degeneracies in Exact Boundary Evaluation

111

Any Chapter Ceres Phone Tree

111

111

a1-(111)

HUM 111 Complete Class Week 1-9 All DQs and Assignments /C

HUM 111 UOP Course Tutorial / Tutorialoutlet

HUM 111 In order to succeed, you must read/Uophelpdotcom

Physiotherapist Home Service in Karachi

How can you set up bank reconciliation in sage 50?

Kitchen Remodel And Design Simi Valley