This title appears in the Scientific Report :
2017
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.95.195317 in citations.
Please use the identifier: http://hdl.handle.net/2128/16993 in citations.
Nonreciprocal quantum Hall devices with driven edge magnetoplasmons in two-dimensional materials
Nonreciprocal quantum Hall devices with driven edge magnetoplasmons in two-dimensional materials
We develop a theory that describes the response of non-reciprocal devices employing 2-dimensional materials in the quantum Hall regime capacitively coupled to external electrodes. As the conduction in these devices is understood to be associated to the edge magnetoplasmons (EMPs), we first investiga...
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Personal Name(s): | Bosco, S. (Corresponding author) |
---|---|
DiVincenzo, David | |
Contributing Institute: |
Theoretische Nanoelektronik; PGI-2 |
Published in: | Physical Review B Physical review / B, 95 95 (2017 2017) 19 19, S. 195317 195317 |
Imprint: |
Woodbury, NY
Inst.
2017
|
DOI: |
10.1103/PhysRevB.95.195317 |
Document Type: |
Journal Article |
Research Program: |
Controlling Collective States |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/16993 in citations.
We develop a theory that describes the response of non-reciprocal devices employing 2-dimensional materials in the quantum Hall regime capacitively coupled to external electrodes. As the conduction in these devices is understood to be associated to the edge magnetoplasmons (EMPs), we first investigate the EMP problem by using the linear response theory in the random phase approximation. Our model can incorporate several cases, that were often treated on different grounds in literature. In particular, we analyze plasmonic excitations supported by smooth and sharp confining potential in 2-dimensional electron gas, and in monolayer graphene, and we point out the similarities and differences in these materials. We also account for a general time-dependent external drive applied to the system. Finally, we describe the behavior of a non-reciprocal quantum Hall device: the response contains additional resonant features, which were not foreseen from previous models. |