PMID- 34558955
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210927
IS  - 1079-7114 (Electronic)
IS  - 0031-9007 (Linking)
VI  - 127
IP  - 11
DP  - 2021 Sep 10
TI  - Quantum Oscillations in the Zeroth Landau Level: Serpentine Landau Fan and the 
      Chiral Anomaly.
PG  - 116602
LID - 10.1103/PhysRevLett.127.116602 [doi]
AB  - We identify an unusual mechanism for quantum oscillations in nodal semimetals, 
      driven by a single pair of Landau levels periodically closing their gap at the 
      Fermi energy as a magnetic field is varied. These "zero Landau level" quantum 
      oscillations (ZQOs) appear in the nodal limit where the zero-field Fermi volume 
      vanishes and have distinctive periodicity and temperature dependence. We link the 
      Landau spectrum of a two-dimensional (2D) nodal semimetal to the Rabi model, and 
      show by exact solution that, across the entire Landau fan, pairs of 
      opposite-parity Landau levels are intertwined in a "serpentine" manner. We 
      propose 2D surfaces of topological crystalline insulators as natural settings for 
      ZQOs. In certain 3D nodal semimetals, ZQOs lead to oscillations of anomaly 
      physics. We propose a transport measurement capable of observing such 
      oscillations, which we demonstrate numerically.
FAU - Devakul, T
AU  - Devakul T
AD  - Department of Physics, Massachusetts Institute of Technology, Cambridge, 
      Massachusetts 02139, USA.
AD  - Department of Physics, Princeton University, Princeton, New Jersey 08540, USA.
FAU - Kwan, Yves H
AU  - Kwan YH
AD  - Rudolf Peierls Centre for Theoretical Physics, Clarendon Laboratory, Oxford OX1 
      3PU, United Kingdom.
FAU - Sondhi, S L
AU  - Sondhi SL
AD  - Department of Physics, Princeton University, Princeton, New Jersey 08540, USA.
FAU - Parameswaran, S A
AU  - Parameswaran SA
AD  - Rudolf Peierls Centre for Theoretical Physics, Clarendon Laboratory, Oxford OX1 
      3PU, United Kingdom.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Phys Rev Lett
JT  - Physical review letters
JID - 0401141
SB  - IM
EDAT- 2021/09/25 06:00
MHDA- 2021/09/25 06:01
CRDT- 2021/09/24 12:11
PHST- 2021/03/19 00:00 [received]
PHST- 2021/06/17 00:00 [revised]
PHST- 2021/08/05 00:00 [accepted]
PHST- 2021/09/24 12:11 [entrez]
PHST- 2021/09/25 06:00 [pubmed]
PHST- 2021/09/25 06:01 [medline]
AID - 10.1103/PhysRevLett.127.116602 [doi]
PST - ppublish
SO  - Phys Rev Lett. 2021 Sep 10;127(11):116602. doi: 10.1103/PhysRevLett.127.116602.