Origin of switchable quasiparticle-interference chirality in loop-current phase of kagome metals measured by scanning-tunneling-microscopy
Sign Up to like & getrecommendations! Published in 2025 at "Nature Communications"
DOI: 10.1038/s41467-025-64588-4
Abstract: In the kagome superconductors AV3Sb5 (A=Cs,Rb,K), a cascade of correlated electron phases cause exotic symmetry-breaking quantum states. In particular, the dissipationless chiral loop-current phase has been attracting increasing attention. A crucial clue is offered by… read more here.
Keywords: quasiparticle interference; loop current; interference chirality; chirality ... See more keywords
Revealing sign-reversal s+− -wave pairing by quasiparticle interference in the heavy-fermion superconductor CeCu2Si2
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.014501
Abstract: Recent observations of two nodeless gaps in superconducting CeCu2Si2 have raised intensive debates on its exact gap structure of either sign reversal (s+−) or sign preserving (s) pairing. Here we investigate the quasiparticle interference (QPI)… read more here.
Keywords: fermion superconductor; quasiparticle interference; superconductor cecu2si2; heavy fermion ... See more keywords
Quasiparticle interference observation of the topologically nontrivial drumhead surface state in ZrSiTe
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.l121111
Abstract: Drumhead surface states that link together loops of nodal lines arise in Dirac nodal-line semimetals as a consequence of the topologically non-trivial band crossings. We used low-temperature scanning tunneling microscopy and Fourier-transformed scanning tunneling spectroscopy… read more here.
Keywords: quasiparticle interference; drumhead surface; state;
Signatures of the order parameter of a superconducting adatom layer in magnetic field dependent quasiparticle interference
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DOI: 10.1103/physrevb.107.174504
Abstract: Experiments have observed superconductivity in atomically-thin metallic layers deposited on semiconducting substrates. As in any superconductor, it is important to determine the structure of the superconducting pairing function in order to reveal the mechanism responsible… read more here.
Keywords: order parameter; order; quasiparticle interference;
Self-supervised learning for denoising quasiparticle interference data
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.111.035136
Abstract: Tunneling spectroscopy is an important tool for the study of both real-space and momentum-space electronic structure of correlated electron systems. However, such measurements often yield noisy data. Machine learning provides techniques to reduce the noise… read more here.
Keywords: denoising quasiparticle; self supervised; quasiparticle; interference data ... See more keywords
Probing moiré electronic structures through quasiparticle interference
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.111.l121403
Abstract: Moiré lattices are a general feature of bilayer structures, where an additional periodic superstructure is generated by either lattice mismatch or from a twist angle. They have been shown to stabilize exotic ground states, including… read more here.
Keywords: structure; quasiparticle interference; probing moir; electronic structure ... See more keywords
Quasiparticle interference and resonant states in normal and superconducting line nodal semimetals
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.140202
Abstract: We study impurity scattering in the normal and d-wave superconducting states of line nodal semimetals and show that, due to additional scattering phase space available for impurities on the surface, the quasiparticle interference pattern acquires… read more here.
Keywords: quasiparticle interference; line; line nodal; interference resonant ... See more keywords
k_{z} Selective Scattering within Quasiparticle Interference Measurements of FeSe.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.216404
Abstract: Quasiparticle interference (QPI) provides a wealth of information relating to the electronic structure of a material. However, it is often assumed that this information is constrained to two-dimensional electronic states. We show that this is… read more here.
Keywords: quasiparticle interference; electronic states; selective scattering; scattering within ... See more keywords
Quasiparticle Interference in Kitaev Quantum Spin Liquids.
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DOI: 10.1103/physrevlett.134.126501
Abstract: We study quasiparticle interference (QPI) in the Kitaev quantum spin liquid (QSL) for electrons tunneling into the QSL. The local tunneling conductance around a spin vacancy or localized vison reveals unique features associated with fractionalized… read more here.
Keywords: quasiparticle interference; interference kitaev; kitaev quantum; quantum spin ... See more keywords
Intermediate band analysis in Green’s function calculations of quasiparticle interference
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review B"
DOI: 10.1103/wxj7-3tyj
Abstract: The measurement of quasiparticle scattering patterns on material surfaces using scanning tunneling microscopy (STM) is now an established technique for accessing the momentum-resolved electronic band structure of solids. However, since these quasiparticle interference (QPI) patterns… read more here.
Keywords: intermediate band; band; green function; quasiparticle interference ... See more keywords