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Attention Score in Context
| Title |
Observation of the universal magnetoelectric effect in a 3D topological insulator
|
|---|---|
| Published in |
Nature Communications, May 2017
|
| DOI | 10.1038/ncomms15197 |
| Pubmed ID | |
| Authors |
V. Dziom, A. Shuvaev, A. Pimenov, G. V. Astakhov, C. Ames, K. Bendias, J. Böttcher, G. Tkachov, E. M. Hankiewicz, C. Brüne, H. Buhmann, L. W. Molenkamp |
| Abstract |
The electrodynamics of topological insulators (TIs) is described by modified Maxwell's equations, which contain additional terms that couple an electric field to a magnetization and a magnetic field to a polarization of the medium, such that the coupling coefficient is quantized in odd multiples of α/4π per surface. Here we report on the observation of this so-called topological magnetoelectric effect. We use monochromatic terahertz (THz) spectroscopy of TI structures equipped with a semitransparent gate to selectively address surface states. In high external magnetic fields, we observe a universal Faraday rotation angle equal to the fine structure constant α=e(2)/2hc (in SI units) when a linearly polarized THz radiation of a certain frequency passes through the two surfaces of a strained HgTe 3D TI. These experiments give insight into axion electrodynamics of TIs and may potentially be used for a metrological definition of the three basic physical constants. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 140 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | <1% |
| Unknown | 139 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 42 | 30% |
| Researcher | 31 | 22% |
| Student > Bachelor | 10 | 7% |
| Student > Master | 10 | 7% |
| Professor | 8 | 6% |
| Other | 22 | 16% |
| Unknown | 17 | 12% |
| Readers by discipline | Count | As % |
|---|---|---|
| Physics and Astronomy | 97 | 69% |
| Materials Science | 9 | 6% |
| Engineering | 4 | 3% |
| Biochemistry, Genetics and Molecular Biology | 3 | 2% |
| Agricultural and Biological Sciences | 2 | 1% |
| Other | 6 | 4% |
| Unknown | 19 | 14% |
Attention Score in Context
This research output has an Altmetric Attention Score of 146. 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 15 June 2017.
All research outputs
#238,977
of 22,971,207 outputs
Outputs from Nature Communications
#3,563
of 47,274 outputs
Outputs of similar age
#5,564
of 309,986 outputs
Outputs of similar age from Nature Communications
#106
of 1,052 outputs
Altmetric has tracked 22,971,207 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 98th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 47,274 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 55.9. This one has done particularly well, scoring higher than 92% 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 309,986 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 98% of its contemporaries.
We're also able to compare this research output to 1,052 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 89% of its contemporaries.