207 citations · 1.1k across the 15 of their papers we have counts for
15 papers
Influence of lattice orientation on growth and structure of graphene on Cu(001)
Joseph M. Wofford, Shu Nie, Konrad Thürmer +2
We have used low-energy electron microscopy and diffraction to examine the significance of lattice orientation in graphene growth on Cu(001). Individual graphene domains undergo an…
Order-disorder phase transition on the (100) surface of magnetite
Norman C. Bartelt, Shu Nie, Elena Starodub +5
Using low-energy electron diffraction, we show that the room-temperature reconstruction of FeO(100) reversibly disorders at 450 $^…
Anomalously Strong 2D Band Intensity in Twisted Bilayer Graphene: Raman Evidence for Doubly Degenerate Dirac Band
Yanan Wang, Zhihua Su, Wei Wu +8
We report the observation of anomalously strong 2D band in twisted bilayer graphene (tBLG) with large rotation angles under 638-nm and 532-nm visible laser excitation. The 2D band…
Room Temperature In-plane <100> Magnetic Easy Axis for Fe3O4/SrTiO3(001):Nb Grown by Infrared PLD
Matteo Monti, Mikel Sanz, Mohamed Oujja +15
We examine the magnetic easy-axis directions of stoichiometric magnetite films grown on SrTiO3:Nb by infrared pulsed-laser deposition. Spin-polarized low-energy electron microscopy…
Low-Energy Electron Reflectivity of Graphene on Copper and other Substrates
N. Srivastava, Qin Gao, M. Widom +4
The reflectivity of low energy electrons from graphene on copper substrates is studied both experimentally and theoretically. Well-known oscillations in the reflectivity of electro…
Twisted Bilayer Graphene Superlattices
Yanan Wang, Zhihua Su, Wei Wu +14
Twisted bilayer graphene (tBLG) provides us with a large rotational freedom to explore new physics and novel device applications, but many of its basic properties remain unresolved…
Growth Structure and Work Function of Bilayer Graphene on Pd(111)
Y. Murata, S. Nie, A. Ebnonnasir +5
Using in situ low-energy electron microscopy and density functional theory, we studied the growth structure and work function of bilayer graphene on Pd(111). Low-energy electron di…
Graphene/Au(111) interaction studied by scanning tunneling microscopy
Shu Nie, Norman C. Bartelt, Joseph M. Wofford +3
We have used scanning tunneling microscopy to study the structure of graphene islands on Au(111) grown by deposition of elemental carbon at 950°C. Consistent with low-energy electr…
Growth from Below: Bilayer Graphene on Copper by Chemical Vapor Deposition
Shu Nie, Wei Wu, Shirui Xing +4
We evaluate how a second graphene layer forms and grows on Cu foils during chemical vapor deposition (CVD). Low-energy electron diffraction and microscopy is used to reveal that th…
Extraordinary epitaxial alignment of graphene islands on Au(111)
Joseph M. Wofford, Elena Starodub, Andrew L. Walter +7
Pristine, single-crystalline graphene displays a unique collection of remarkable electronic properties that arise from its two-dimensional, honeycomb structure. Using in-situ low-e…
Electronic structure of graphene on single crystal copper substrates
Andrew L. Walter, Shu Nie, Aaron Bostwick +7
The electronic structure of graphene on Cu(111) and Cu(100) single crystals is investigated using low energy electron microscopy, low energy electron diffraction and angle resolved…
In-plane orientation effects on the electronic structure, stability and Raman scattering of monolayer graphene on Ir(111)
Elena Starodub, Aaron Bostwick, Luca Moreschini +4
We employ angle-resolved photoemission spectroscopy (ARPES) to investigate the electronic structures of two rotational variants of epitaxial, single-layer graphene on Ir(111). As g…
Thickness monitoring of graphene on SiC using low-energy electron diffraction
P. J. Fisher, Luxmi, N. Srivastava +2
The formation of epitaxial graphene on SiC is monitored in-situ using low-energy electron diffraction (LEED). The possibility of using LEED as an in-situ thickness monitor of the g…
Defects of graphene on Ir(111): rotational domains and ridges
Elena Loginova, Shu Nie, Konrad Thurmer +2
We use low-energy electron microscopy (LEEM), low-energy electron diffraction (LEED) and scanning tunneling microscopy (STM) to study different orientations of single-layer graphen…
Tunneling Spectroscopy of Graphene and related Reconstructions on SiC(0001)
Shu Nie, R. M. Feenstra
The 5x5, 6rt(3)x6rt(3)-R30deg, and graphene-covered 6rt(3)x6rt(3)-R30deg reconstructions of the SiC(0001) surface are studied by scanning tunneling microscopy and spectroscopy. For…