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  Temperature dependence of quantum oscillations from non-parabolic dispersions

Guo, C., Alexandradinata, A., Putzke, C., Estry, A., Tu, T., Kumar, N., et al. (2021). Temperature dependence of quantum oscillations from non-parabolic dispersions. Nature Communications, 12(1): 6213, pp. 1-7. doi:10.1038/s41467-021-26450-1.

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Guo, Chunyu1, Author
Alexandradinata, A.1, Author
Putzke, Carsten1, Author
Estry, Amelia1, Author
Tu, Teng1, Author
Kumar, Nitesh2, Author           
Fan, Feng-Ren2, Author           
Zhang, Shengnan1, Author
Wu, Quansheng1, Author
Yazyev V, Oleg1, Author
Shirer, Kent R.3, Author           
Bachmann, Maja D.3, Author           
Peng, Hailin1, Author
Bauer, Eric D.1, Author
Ronning, Filip1, Author
Sun, Yan2, Author           
Shekhar, Chandra4, Author           
Felser, Claudia5, Author           
Moll, Philip J. W.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_2466701              
4Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863428              
5Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: A versatile methodology to detect topological quasiparticles by transport measurements remains an open problem. Here, the authors propose and experimentally observe the temperature dependence of the quantum oscillation frequency as a signature of non-trivial band topology.
The phase offset of quantum oscillations is commonly used to experimentally diagnose topologically nontrivial Fermi surfaces. This methodology, however, is inconclusive for spin-orbit-coupled metals where pi-phase-shifts can also arise from non-topological origins. Here, we show that the linear dispersion in topological metals leads to a T-2-temperature correction to the oscillation frequency that is absent for parabolic dispersions. We confirm this effect experimentally in the Dirac semi-metal Cd3As2 and the multiband Dirac metal LaRhIn5. Both materials match a tuning-parameter-free theoretical prediction, emphasizing their unified origin. For topologically trivial Bi2O2Se, no frequency shift associated to linear bands is observed as expected. However, the pi-phase shift in Bi2O2Se would lead to a false positive in a Landau-fan plot analysis. Our frequency-focused methodology does not require any input from ab-initio calculations, and hence is promising for identifying correlated topological materials.

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 Dates: 2021
 Publication Status: Published online
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Title: Nature Communications
  Abbreviation : Nat. Commun.
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 12 (1) Sequence Number: 6213 Start / End Page: 1 - 7 Identifier: ISSN: 2041-1723
CoNE: https://pure.mpg.de/cone/journals/resource/2041-1723