High Mobility and Quantum Oscillations in Semiconducting Bi2O2Te Nanosheets Grown by Chemical Vapor Deposition.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c02891
Abstract: Bi2O2Te has the smallest effective mass and preferable carrier mobility in the Bi2O2X (X = S, Se, Te) family. However, compared to the widely explored Bi2O2Se, the studies on Bi2O2Te are very rare, probably attributed… read more here.
Keywords: mobility; chemical vapor; quantum oscillations; high mobility ... See more keywords
Temperature dependence of quantum oscillations from non-parabolic dispersions
Sign Up to like & getrecommendations! Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-26450-1
Abstract: 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 π-phase-shifts can also arise from non-topological origins. Here, we show… read more here.
Keywords: methodology; quantum oscillations; parabolic dispersions; temperature dependence ... See more keywords
Quantum oscillations from networked topological interfaces in a Weyl semimetal
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Materials"
DOI: 10.1038/s41535-020-00264-8
Abstract: Layered transition metal chalcogenides are promising hosts of electronic Weyl nodes and topological superconductivity. MoTe 2 is a striking example that harbors both noncentrosymmetric T d and centrosymmetric T’ phases, both of which have been… read more here.
Keywords: networked topological; quantum oscillations; interfaces weyl; weyl semimetal ... See more keywords
High-temperature quantum oscillations of the Hall resistance in bulk Bi2Se3
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-18960-0
Abstract: Helically spin-polarized Dirac fermions (HSDF) in protected topological surface states (TSS) are of high interest as a new state of quantum matter. In three-dimensional (3D) materials with TSS, electronic bulk states often mask the transport… read more here.
Keywords: quantum oscillations; bulk; hall resistance; resistance ... See more keywords
Quantum oscillations in the magnetization and density of states of insulators
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.2208373119
Abstract: Significance The Fermi surface, the defining characteristic of metals, leads to oscillatory behavior as a function of the magnetic field in various experiments. It was thus a great surprise when such oscillations were recently seen… read more here.
Keywords: states insulators; quantum oscillations; magnetization density; oscillations magnetization ... See more keywords
Simultaneous detection of quantum oscillations from bulk and topological surface states in metallic
Sign Up to like & getrecommendations! Published in 2017 at "Philosophical Magazine"
DOI: 10.1080/14786435.2017.1314563
Abstract: Shubnikov–de Haas (SdH) oscillations in metallic are studied in magnetic fields up to 35 Tesla. It is demonstrated that two characteristic frequencies determine the quantum oscillations of the conductivity. Angle dependent measurements and calculations of… read more here.
Keywords: surface states; quantum oscillations; field; surface ... See more keywords
Quantum Oscillations in Noncentrosymmetric Weyl Semimetal SmAlSi
Sign Up to like & getrecommendations! Published in 2022 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/39/4/047501
Abstract: As a new type of quantum state of matter hosting low energy relativistic quasiparticles, Weyl semimetals (WSMs) have attracted significant attention for scientific community and potential quantum device applications. In this study, we present a… read more here.
Keywords: smalsi; noncentrosymmetric weyl; physics; quantum oscillations ... See more keywords
Quantum oscillations turn log(B )-periodic in Dirac semimetals: ‘Who ordered that?’
Sign Up to like & getrecommendations! Published in 2019 at "National Science Review"
DOI: 10.1093/nsr/nwz016
Abstract: Quantum oscillations refer to the oscillatory behavior of transport and thermodynamic quantities as a function of the applied magnetic field B in metals and semimetals. The primary examples are the Shubnikov–de Haas (SdH) oscillations in… read more here.
Keywords: quantum oscillations; log periodic; periodic dirac; dirac semimetals ... See more keywords
Quantum oscillations in strongly correlated topological Kondo insulators
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.085124
Abstract: The observation of quantum oscillations in topological Kondo insulators SmB$_6$ and YbB$_{12}$ is a recent puzzling experimental discovery. Quantum oscillations observed in the resistivity and the magnetization are usually explained by the existence of the… read more here.
Keywords: topological kondo; kondo insulators; quantum oscillations; fermi surface ... See more keywords
Quantum oscillations in the anomalous spin density wave state of FeAs
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.075120
Abstract: Quantum oscillations in the binary antiferromagnetic metal FeAs are presented and compared to theoretical predictions for the electronic band structure in the anomalous spin density wave state of this material. Demonstrating a new method for… read more here.
Keywords: state; quantum oscillations; density wave; spin density ... See more keywords
Logarithmic singularities and quantum oscillations in magnetically doped topological insulators
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.085151
Abstract: We report magnetotransport measurements on magnetically doped (Bi,Sb)$_2$Te$_3$ films grown by molecular beam epitaxy. In Hallbar devices, logarithmic dependence on temperature and bias voltage are obseved in both the longitudinal and anomalous Hall resistance. The… read more here.
Keywords: singularities quantum; quantum oscillations; magnetically doped; doped topological ... See more keywords