Two-dimensional spinodal interface in one-step grown graphene-molybdenum carbide heterostructures

Jia Bin Qiao, Yue Gong, Haiwen Liu, Jin An Shi, Lin Gu, Lin He*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Heterostructures made by stacking different materials on top of each other are expected to exhibit unusual properties and new phenomena. Interface of the heterostructures plays a vital role in determining their properties. Here, we report the observation of a two-dimensional (2D) spinodal interface in graphene-molybdenum carbide (α-Mo2C) heterostructures, which arises from spinodal decomposition occurring at the heterointerface, by using scanning tunneling microscopy. Our experiment demonstrates that the 2D spinodal interface modulates graphene into whispering gallery resonant networks filled with quasibound states of massless Dirac fermions. Moreover, below the superconducting transition temperature of the underlying α-Mo2C, the 2D spinodal interface behaves as disorders, resulting in the breakdown of the proximity-induced superconductivity in graphene. Our result sheds light on tuning properties of heterostructures based on interface engineering.

Original languageEnglish
Article number054002
JournalPhysical Review Materials
Volume2
Issue number5
DOIs
Publication statusPublished - 23 May 2018
Externally publishedYes

Fingerprint

Dive into the research topics of 'Two-dimensional spinodal interface in one-step grown graphene-molybdenum carbide heterostructures'. Together they form a unique fingerprint.

Cite this