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Double thermoelectric power factor of a 2D electron system

Overview of attention for article published in Nature Communications, June 2018
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (97th percentile)

Mentioned by

11 news outlets
2 blogs
14 tweeters
2 Redditors


25 Dimensions

Readers on

65 Mendeley
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Double thermoelectric power factor of a 2D electron system
Published in
Nature Communications, June 2018
DOI 10.1038/s41467-018-04660-4
Pubmed ID

Yuqiao Zhang, Bin Feng, Hiroyuki Hayashi, Cheng-Ping Chang, Yu-Miin Sheu, Isao Tanaka, Yuichi Ikuhara, Hiromichi Ohta


Two-dimensional electron systems have attracted attention as thermoelectric materials, which can directly convert waste heat into electricity. It has been theoretically predicted that thermoelectric power factor can be largely enhanced when the two-dimensional electron layer is far narrower than the de Broglie wavelength. Although many studies have been made, the effectiveness has not been experimentally clarified thus far. Here we experimentally clarify that an enhanced two-dimensionality is efficient to enhance thermoelectric power factor. We fabricated superlattices of [N unit cell SrTi1-xNb x O3|11 unit cell SrTiO3]10-there are two different de Broglie wavelength in the SrTi1-xNb x O3 system. The maximum power factor of the superlattice composed of the longer de Broglie wavelength SrTi1-xNb x O3 exceeded ∼5 mW m-1 K-2, which doubles the value of optimized bulk SrTi1-xNb x O3. The present approach-use of longer de Broglie wavelength-is epoch-making and is fruitful to design good thermoelectric materials showing high power factor.

Twitter Demographics

The data shown below were collected from the profiles of 14 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 65 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 65 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 15 23%
Student > Ph. D. Student 13 20%
Student > Bachelor 8 12%
Student > Master 6 9%
Professor > Associate Professor 5 8%
Other 12 18%
Unknown 6 9%
Readers by discipline Count As %
Materials Science 19 29%
Physics and Astronomy 13 20%
Engineering 10 15%
Chemistry 6 9%
Agricultural and Biological Sciences 1 2%
Other 2 3%
Unknown 14 22%

Attention Score in Context

This research output has an Altmetric Attention Score of 102. 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 17 July 2018.
All research outputs
of 17,619,075 outputs
Outputs from Nature Communications
of 34,594 outputs
Outputs of similar age
of 284,057 outputs
Outputs of similar age from Nature Communications
of 2 outputs
Altmetric has tracked 17,619,075 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 34,594 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 52.3. This one has done well, scoring higher than 88% 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 284,057 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 97% of its contemporaries.
We're also able to compare this research output to 2 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them