TY - JOUR
T1 - Two-dimensional spinodal interface in one-step grown graphene-molybdenum carbide heterostructures
AU - Qiao, Jia Bin
AU - Gong, Yue
AU - Liu, Haiwen
AU - Shi, Jin An
AU - Gu, Lin
AU - He, Lin
N1 - Publisher Copyright:
© 2018 American Physical Society.
PY - 2018/5/23
Y1 - 2018/5/23
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85057726976&partnerID=8YFLogxK
U2 - 10.1103/PhysRevMaterials.2.054002
DO - 10.1103/PhysRevMaterials.2.054002
M3 - Article
AN - SCOPUS:85057726976
SN - 2475-9953
VL - 2
JO - Physical Review Materials
JF - Physical Review Materials
IS - 5
M1 - 054002
ER -