Work

Anomalous Phonon Softening with Inherent Strain in Wrinkled Monolayer WSe 2 (Adv. Mater. 35/2025)

Year: 2025

Type: article

Abstract: Novel Strain Indicator In article number 2419414, Mun Seok Jeong and co-workers identify a new strain indicator in monolayer WSe2 using tip-enhanced Raman spectroscopy. The strain sensitivity of the newly revealed Raman-inactive out-of-plane A2″(Γ) mode was clearly demonstrated through both experimental and theoretical approaches. Specifically, density functional theory (DFT)-based analysis elucidating the origin of selection rule relaxation (attributed to strain-induced polarizability changes) provides robust support for establishing this mode as a novel phonon-based strain indicator.

Source: Advanced Materials

DOI: 10.1002/adma.70383

Authors: Dong Hyeon Kim, Jaekak Yoo, Hyeong Chan Suh, Yo Seob Won, Sung Hyuk Kim, Dong‐Joon Yi, Byeong Geun Jeong, Chanwoo Lee, Dongki Lee, Ki Kang Kim, Seung Mi Lee, Eui Kwan Koh, Mun Seok Jeong

Institutions: Hanyang University, Sungkyunkwan University, Korea Research Institute of Standards and Science, Korea Basic Science Institute

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4414023303

FWCI: 0.212

Cites:

Cited by: 1

Related to: 10