Enhanced thermal transport of hexagonal boron nitride filled polymer composite by magnetic field-assisted alignment

2013 ◽  
Author(s):  
Ziyin Lin ◽  
Yan Liu ◽  
Kyoung-sik Moon ◽  
Ching-Ping Wong
Keyword(s):  
Magnetic Field ◽  
Boron Nitride ◽  
Polymer Composite ◽  
Thermal Transport ◽  
Hexagonal Boron Nitride ◽  
Filled Polymer

scholarly journals Observation of fractional Chern insulators in a van der Waals heterostructure

Science ◽  
2018 ◽  
Vol 360 (6384) ◽  
pp. 62-66 ◽  
Author(s):  
Eric M. Spanton ◽  
Alexander A. Zibrov ◽  
Haoxin Zhou ◽  
Takashi Taniguchi ◽  
Kenji Watanabe ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Boron Nitride ◽  
Symmetry Breaking ◽  
Hexagonal Boron Nitride ◽  
Landau Levels ◽  
Topological Order ◽  
Hall Conductance ◽  
Van Der Waals Heterostructure ◽  
Ordered Phases ◽  
Chern Insulators

Topologically ordered phases are characterized by long-range quantum entanglement and fractional statistics rather than by symmetry breaking. First observed in a fractionally filled continuum Landau level, topological order has since been proposed to arise more generally at fractional fillings of topologically nontrivial Chern bands. Here we report the observation of gapped states at fractional fillings of Harper-Hofstadter bands arising from the interplay of a magnetic field and a superlattice potential in a bilayer graphene–hexagonal boron nitride heterostructure. We observed phases at fractional filling of bands with Chern indices C=−1, ±2, and ±3. Some of these phases, in C=−1 and C=2 bands, are characterized by fractional Hall conductance—that is, they are known as fractional Chern insulators and constitute an example of topological order beyond Landau levels.

Understanding thermal transport in asymmetric layer hexagonal boron nitride heterostructure

2016 ◽  
Vol 28 (3) ◽  
pp. 035404 ◽  
Author(s):  
Jingchao Zhang ◽  
Xinyu Wang ◽  
Yang Hong ◽  
Qingang Xiong ◽  
Jin Jiang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Thermal Transport ◽  
Hexagonal Boron Nitride

Tailoring the thermal transport properties of monolayer hexagonal boron nitride by grain size engineering

2D Materials ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 015031
Author(s):  
Hao Ying ◽  
Arden Moore ◽  
Jie Cui ◽  
Yaoyao Liu ◽  
Deshuai Li ◽  
...  
Keyword(s):  
Grain Size ◽  
Boron Nitride ◽  
Transport Properties ◽  
Thermal Transport ◽  
Hexagonal Boron Nitride ◽  
Thermal Transport Properties

scholarly journals Topological valley currents via ballistic edge modes in graphene superlattices near the primary Dirac point

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Yang Li ◽  
Mario Amado ◽  
Timo Hyart ◽  
Grzegorz. P. Mazur ◽  
Jason W. A. Robinson
Keyword(s):  
Magnetic Field ◽  
Boron Nitride ◽  
Dirac Point ◽  
Hexagonal Boron Nitride ◽  
Zero Magnetic Field ◽  
Decay Length ◽  
Topological Phase ◽  
Show Evidence ◽  
Nonlocal Transport

AbstractGraphene on hexagonal boron nitride (hBN) can exhibit a topological phase via mutual crystallographic alignment. Recent measurements of nonlocal resistance (Rnl) near the secondary Dirac point (SDP) in ballistic graphene/hBN superlattices have been interpreted as arising due to the quantum valley Hall state. We report hBN/graphene/hBN superlattices in which Rnl at SDP is negligible, but below 60 K approaches the value of h/2e2 in zero magnetic field at the primary Dirac point with a characteristic decay length of 2 μm. Furthermore, nonlocal transport transmission probabilities based on the Landauer-Büttiker formalism show evidence for spin-degenerate ballistic valley-helical edge modes, which are key for the development of valleytronics.

Interplay of orbital hopping and perpendicular magnetic field in anisotropic phase transitions for Bernal bilayer graphene and hexagonal boron-nitride

2019 ◽  
Vol 21 (1) ◽  
pp. 238-245 ◽  
Author(s):  
P. T. T. Le ◽  
M. Davoudiniya ◽  
M. Yarmohammadi
Keyword(s):  
Magnetic Field ◽  
Phase Transitions ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Bilayer Graphene ◽  
Perpendicular Magnetic Field ◽  
Magnetic Field Effects ◽  
Field Effects ◽  
Electronic Phase ◽  
Anisotropic Phase

We theoretically address the perpendicular magnetic field effects on the orbital electronic phase of Bernal bilayer graphene and hexagonal boron-nitride (h-BN).

The Impact of Interlayer Rotation on Thermal Transport Across Graphene/Hexagonal Boron Nitride van der Waals Heterostructure

Nano Letters ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2634-2641 ◽  
Author(s):  
Weijun Ren ◽  
Yulou Ouyang ◽  
Pengfei Jiang ◽  
Cuiqian Yu ◽  
Jia He ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Thermal Transport ◽  
Hexagonal Boron Nitride ◽  
Van Der Waals ◽  
Van Der Waals Heterostructure ◽  
The Impact
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