| dc.contributor |
Cheng, Tin s. |
|
| dc.contributor |
Korolkov, Vladimir V. |
|
| dc.contributor |
Goodey, Nathan L. |
|
| dc.contributor |
Mellor, Christopher J. |
|
| dc.contributor |
Watanabe, Kenji |
|
| dc.contributor |
Khlobystov, Andrei N. |
|
| dc.contributor |
Taniguchi, Takashi |
|
| dc.contributor |
Foxon, C. Thomas |
|
| dc.contributor |
Eaves, Laurence |
|
| dc.contributor |
Novikov, Sergei V. |
|
| dc.contributor |
Stapleton, Emily |
|
| dc.creator |
Summerfield, Alex |
|
| dc.creator |
Davies, Andrew |
|
| dc.creator |
Beton, Peter |
|
| dc.creator |
Diez Albar, Juan |
|
| dc.creator |
Thomas, James |
|
| dc.creator |
Cheng, Tin s. |
|
| dc.date |
2017-12-19T16:56:56Z |
|
| dc.date |
2017-12-19T16:56:56Z |
|
| dc.date |
2018-01-01 |
|
| dc.identifier |
https://rdmc.nottingham.ac.uk/handle/internal/340 |
|
| dc.identifier |
http://doi.org/10.17639/nott.336 |
|
| dc.description |
Lattice-matched graphene on hexagonal boron nitride is expected to lead to the formation
of a band-gap but requires the formation of highly strained material and has not hitherto
been realised. We demonstrate that aligned, lattice-matched graphene can be grown by
molecular beam epitaxy using substrate temperatures in the range 1600-1710 °C and coexists
with a topologically-modified moiré pattern, and with regions of strained graphene
which have giant moiré periods up to ~80 nm. Raman spectra reveal narrow red-shifted
peaks due to uniform isotropic strain, while the giant moiré patterns result in complex
splitting of Raman peaks due to strain variations across the moiré unit cell. The latticematched
graphene has a lower conductance than both the Frenkel-Kontorova-type
dislocation lines, and also the topological defects where they terminate. We relate these
results to theoretical models of band-gap formation in graphene/boron nitride
heterostructures. |
|
| dc.language |
en |
|
| dc.publisher |
The University of Nottingham |
|
| dc.relation |
10.1021/acs.nanolett.7b04453 |
|
| dc.subject |
Epitaxy, Graphene -- Mechanical properties, Strains and stresses, Raman, AFM |
|
| dc.subject |
Physical sciences::Chemistry::Physical chemistry |
|
| dc.subject |
Physical sciences::Physics::Chemical physics, Solid-state physics |
|
| dc.subject |
Physical sciences::Materials science |
|
| dc.subject |
Q Science::QC Physics::QC170 Atomic physics. Constitution and properties of matter |
|
| dc.subject |
Q Science::QD Chemistry::QD450 Physical and theoretical chemistry |
|
| dc.title |
Giant moiré patterns and lattice-matched epitaxial graphene grown |
|
| dc.type |
dataset |
|