What is recorded here?
Transport measurements in aligned graphene–hexagonal-boron-nitride superlattices revealed oscillations periodic in inverse magnetic field that remained visible at 373 K in fields of a few tesla. Their principal maxima followed one flux quantum per integer number of superlattice cells, with a period largely independent of carrier density. Comparison with misaligned devices, capacitance measurements and magnetic-miniband modelling supported an interpretation through recurring Bloch states rather than thermally resolved Landau gaps.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
The measured result concerns the investigated graphene superlattices and accessible carrier densities, temperatures and fields. Higher-temperature estimates and extensions to other materials are predictions. The relaxation-time model is qualitative; transport observations do not directly measure every miniband or prove the mechanism uniquely. The 2017 thesis reproduces the Science article and supplementary information; raw data have not been independently reanalyzed.
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People and systems
R. Krishna Kumar; X. Chen; G. H. Auton; A. Mishchenko; D. A. Bandurin; S. V. Morozov; Y. Cao; E. Khestanova; M. Ben Shalom; A. V. Kretinin; K. S. Novoselov; L. Eaves; I. V. Grigorieva; L. A. Ponomarenko; V. I. Fal’ko; A. K. Geim
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English catalogue narrative
Brown–Zak quantum oscillations persist above room temperature in graphene superlattices
Transport measurements in aligned graphene–hexagonal-boron-nitride superlattices revealed oscillations periodic in inverse magnetic field that remained visible at 373 K in fields of a few tesla. Their principal maxima followed one flux quantum per integer number of superlattice cells, with a period largely independent of carrier density. Comparison with misaligned devices, capacitance measurements and magnetic-miniband modelling supported an interpretation through recurring Bloch states rather than thermally resolved Landau gaps.
Scientific scope
The measured result concerns the investigated graphene superlattices and accessible carrier densities, temperatures and fields. Higher-temperature estimates and extensions to other materials are predictions. The relaxation-time model is qualitative; transport observations do not directly measure every miniband or prove the mechanism uniquely. The 2017 thesis reproduces the Science article and supplementary information; raw data have not been independently reanalyzed.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
R. Krishna Kumar; X. Chen; G. H. Auton; A. Mishchenko; D. A. Bandurin; S. V. Morozov; Y. Cao; E. Khestanova; M. Ben Shalom; A. V. Kretinin; K. S. Novoselov; L. Eaves; I. V. Grigorieva; L. A. Ponomarenko; V. I. Fal’ko; A. K. Geim
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.