Abstract
Heat-loving quantum oscillations The shape of the Fermi surface in a conductor can be gleaned through quantum oscillations—periodic changes in transport properties as an external magnetic field is varied. Like most quantum properties, the phenomenon can usually be observed only at very low temperatures. Krishna Kumar et al. report quantum oscillations in graphene that do not go away even at the temperature of boiling water. Although “ordinary,” low-temperature quantum oscillations die away, another oscillatory behavior sets in that is extremely robust to heating. These resilient oscillations appear only in samples in which graphene is nearly aligned with its hexagonal boron nitride substrate, indicating that they are caused by the potential of the moiré superlattice that forms in such circumstances. Science , this issue p. 181
Bibliography
Krishna Kumar, R., Chen, X., Auton, G. H., Mishchenko, A., Bandurin, D. A., Morozov, S. V., Cao, Y., Khestanova, E., Ben Shalom, M., Kretinin, A. V., Novoselov, K. S., Eaves, L., Grigorieva, I. V., Ponomarenko, L. A., Falâko, V. I., & Geim, A. K. (2017). High-temperature quantum oscillations caused by recurring Bloch states in graphene superlattices. Science, 357(6347), 181â184.
Authors
16
- R. Krishna Kumar (first)
- X. Chen (additional)
- G. H. Auton (additional)
- A. Mishchenko (additional)
- D. A. Bandurin (additional)
- S. V. Morozov (additional)
- Y. Cao (additional)
- E. Khestanova (additional)
- M. Ben Shalom (additional)
- A. V. Kretinin (additional)
- K. S. Novoselov (additional)
- L. Eaves (additional)
- I. V. Grigorieva (additional)
- L. A. Ponomarenko (additional)
- V. I. Fal’ko (additional)
- A. K. Geim (additional)
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Dates
Type | When |
---|---|
Created | 8 years, 1 month ago (July 19, 2017, 4:55 p.m.) |
Deposited | 1 year, 7 months ago (Jan. 15, 2024, 12:03 p.m.) |
Indexed | 2 weeks, 6 days ago (Aug. 6, 2025, 8:39 a.m.) |
Issued | 8 years, 1 month ago (July 14, 2017) |
Published | 8 years, 1 month ago (July 14, 2017) |
Published Print | 8 years, 1 month ago (July 14, 2017) |
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@article{Krishna_Kumar_2017, title={High-temperature quantum oscillations caused by recurring Bloch states in graphene superlattices}, volume={357}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.aal3357}, DOI={10.1126/science.aal3357}, number={6347}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Krishna Kumar, R. and Chen, X. and Auton, G. H. and Mishchenko, A. and Bandurin, D. A. and Morozov, S. V. and Cao, Y. and Khestanova, E. and Ben Shalom, M. and Kretinin, A. V. and Novoselov, K. S. and Eaves, L. and Grigorieva, I. V. and Ponomarenko, L. A. and Fal’ko, V. I. and Geim, A. K.}, year={2017}, month=jul, pages={181–184} }