Pressure dependence of effective dynamic charge in InxAl1xAs ternary alloys

Title
Pressure dependence of effective dynamic charge in InxAl1xAs ternary alloys
Authors
Ta-RyeongParkYoungDongKim송진동
Keywords
InAlAs; Pressure; High-pressure Raman; Charge transfer; Effective dynamic charge
Issue Date
2015-11
Publisher
Solid state communications
Citation
VOL 221, 41-44
Abstract
Using Raman scattering data under high pressure, we show that InxAl1-xAs ternary alloys exhibit, depending on In molar fraction x, either decreasing or increasing effective dynamic charge for InAs-like mode with increasing pressure. The variation of the effective dynamic charge in ternary alloy is determined by two factors: (1) the charge transfer between two different vibrating pairs and (2) the tendency to reduce it under lattice contraction in binary case. (C) 2015 Elsevier Ltd. All rights reserved.
URI
http://pubs.kist.re.kr/handle/201004/51135
ISSN
00381098
Appears in Collections:
KIST Publication > Article
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