Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Precise Determination of Offset between Optical Axis and Re-Chain Direction in Rhenium Disulfide

Authors
Park Je Myoung이솔Na WoongkiKWANPYO KIMCheong Hyeonsik
Issue Date
Jun-2022
Publisher
AMER CHEMICAL SOC
Keywords
ReS2; rhenium disulfide; birefringence; optical anisotropy; domain structure
Citation
ACS NANO, v.16, no.6, pp.9,222 - 9,227
Journal Title
ACS NANO
Volume
16
Number
6
Start Page
9,222
End Page
9,227
URI
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6304
DOI
10.1021/acsnano.2c01560
ISSN
1936-0851
Abstract
ReS2 is a group-VII chalcogenide with a crystal structure that has inversion symmetry only. Due to the low symmetry, it has in-plane anisotropy, and the two vertical orientations are not equivalent. The in-plane anisotropy leads to optical birefringence that can be observed by using polarized optical microscopy. We found ReS2 crystals with domains of inequivalent vertical orientations but with the same Re-chain directions. Polarized Raman spectroscopy was used to determine the vertical orientations and the b-axis (Re-chain) directions of the domains, and high-resolution scanning transmission electron microscopy measurements confirmed that the Re-chain directions of the two types of the neighboring domains are exactly parallel. From polarized optical reflectivity measurements of the two types of domains, we found that the optical slow axis is not along the b-axis as previously believed but is tilted by similar to 2.4 degrees from the b-axis of the crystal. This offset makes the two neighboring domains with parallel Rechains optically inequivalent and enables one to observe optical contrast between the two types of domains in polarized optical microscopy. We propose a quick and easy method to determine the crystallographic orientations of such domains by using polarized optical microscopy only.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Science > Physics > 1. Journal Articles

qrcode

Items in Scholar Hub are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher ,  photo

,
College of Science (Physics)
Read more

Altmetrics

Total Views & Downloads

BROWSE