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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Magnetic quantum ratchet effect in graphene
|
|---|---|
| Published in |
Nature Nanotechnology, January 2013
|
| DOI | 10.1038/nnano.2012.231 |
| Pubmed ID | |
| Authors |
C. Drexler, S. A. Tarasenko, P. Olbrich, J. Karch, M. Hirmer, F. Müller, M. Gmitra, J. Fabian, R. Yakimova, S. Lara-Avila, S. Kubatkin, M. Wang, R. Vajtai, P. M. Ajayan, J. Kono, S. D. Ganichev |
| Abstract |
A periodically driven system with spatial asymmetry can exhibit a directed motion facilitated by thermal or quantum fluctuations. This so-called ratchet effect has fascinating ramifications in engineering and natural sciences. Graphene is nominally a symmetric system. Driven by a periodic electric field, no directed electric current should flow. However, if the graphene has lost its spatial symmetry due to its substrate or adatoms, an electronic ratchet motion can arise. We report an experimental demonstration of such an electronic ratchet in graphene layers, proving the underlying spatial asymmetry. The orbital asymmetry of the Dirac fermions is induced by an in-plane magnetic field, whereas the periodic driving comes from terahertz radiation. The resulting magnetic quantum ratchet transforms the a.c. power into a d.c. current, extracting work from the out-of-equilibrium electrons driven by undirected periodic forces. The observation of ratchet transport in this purest possible two-dimensional system indicates that the orbital effects may appear and be substantial in other two-dimensional crystals such as boron nitride, molybdenum dichalcogenides and related heterostructures. The measurable orbital effects in the presence of an in-plane magnetic field provide strong evidence for the existence of structure inversion asymmetry in graphene. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 75% |
| United Kingdom | 1 | 25% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 3 | 75% |
| Science communicators (journalists, bloggers, editors) | 1 | 25% |
Mendeley readers
The data shown below were compiled from readership statistics for 134 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 1% |
| Austria | 1 | <1% |
| Sweden | 1 | <1% |
| Colombia | 1 | <1% |
| Iran, Islamic Republic of | 1 | <1% |
| United Kingdom | 1 | <1% |
| Japan | 1 | <1% |
| Denmark | 1 | <1% |
| Unknown | 125 | 93% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 31 | 23% |
| Researcher | 20 | 15% |
| Professor > Associate Professor | 11 | 8% |
| Student > Master | 9 | 7% |
| Student > Doctoral Student | 6 | 4% |
| Other | 15 | 11% |
| Unknown | 42 | 31% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 59 | 44% |
| Engineering | 10 | 7% |
| Materials Science | 9 | 7% |
| Chemistry | 7 | 5% |
| Chemical Engineering | 1 | <1% |
| Other | 4 | 3% |
| Unknown | 44 | 33% |
Attention Score in Context
This research output has an Altmetric Attention Score of 25. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 10 October 2017.
All research outputs
#1,284,261
of 22,693,205 outputs
Outputs from Nature Nanotechnology
#1,091
of 3,389 outputs
Outputs of similar age
#12,807
of 285,301 outputs
Outputs of similar age from Nature Nanotechnology
#19
of 55 outputs
Altmetric has tracked 22,693,205 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 94th percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 3,389 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 36.6. This one has gotten more attention than average, scoring higher than 67% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 285,301 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 95% of its contemporaries.
We're also able to compare this research output to 55 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 65% of its contemporaries.