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Updated: Jun 9, 2025

Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries
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Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries

Published on: April 22, 2013

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トポロジカル・グライン・ボーダー・セグレゲーション・トランジション

Vivek Devulapalli1, Enze Chen2, Tobias Brink1

  • 1Max-Planck-Institut für Eisenforschung GmbH, 40237 Düsseldorf, Germany.

Science (New York, N.Y.)
|October 24, 2024
PubMed
まとめ

タイタンの鉄分離は,穀物境界 (GBs) でユニークなイコサヘドラルケージを安定させます. これらのケージは異なる階層的な GB 段階を形成し,材料設計のための新しい経路を提供します.

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Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in...
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Metal-Semiconductor Junctions

The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
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