Phononic drumhead surface state in the distorted kagome compound RhPb

Andrzej Ptok; William R. Meier; Aksel Kobiałka; Surajit Basak; Małgorzata Sternik; Jan Łażewski; Paweł T. Jochym; Michael A. McGuire; Brian C. Sales; Hu Miao; Przemysław Piekarz; Andrzej M. Oleś

doi:10.1103/PhysRevResearch.5.043231

Phononic drumhead surface state in the distorted kagome compound RhPb

Andrzej Ptok, William R. Meier, Aksel Kobiałka, Surajit Basak, Małgorzata Sternik, Jan Łażewski, Paweł T. Jochym, Michael A. McGuire, Brian C. Sales, Hu Miao, Przemysław Piekarz, Andrzej M. Oleś

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

RhPb was initially recognized as one of CoSn-like compounds with P6/mmm symmetry, containing an ideal kagome lattice of d-block atoms. However, theoretical calculations predict the realization of the phonon soft mode, which leads to the kagome lattice distortion and stabilization of the structure with P6¯2m symmetry [A. Ptok et al., Phys. Rev. B 104, 054305 (2021)2469-995010.1103/PhysRevB.104.054305]. Here, we present the single crystal x-ray diffraction results supporting this prediction. Furthermore, we discuss the main dynamical properties of RhPb with P6¯2m symmetry, i.e. phonon dispersions and surface Green's functions using the modern theoretical methods based on density functional theory. The bulk phononic dispersion curves contain several flattened bands, Dirac nodal lines, and triple degenerate Dirac points. As a consequence, the phononic drumhead surface state is realized for the (100) surface, terminated by the zigzaglike edge of Pb honeycomb sublattice.

Original language	English
Article number	043231
Journal	Physical Review Research
Volume	5
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevResearch.5.043231
State	Published - Oct 2023

Funding

We kindly thank Mark O. Goerbig for insightful discussions. Some figures in this work were rendered using Vesta and XCrySDen software. A.P. is grateful to Laboratoire de Physique des Solides in Orsay (CNRS, University Paris Saclay) for hospitality during a part of his work on this project. Work by W.R.M., M.A.M., B.C.S., and H.M. was funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division. A.M.O. is grateful for support via the Alexander von Humboldt Foundation Fellowship (Humboldt-Forschungspreis) .

Funders	Funder number
U.S. Department of Energy
Alexander von Humboldt-Stiftung
Office of Science
Basic Energy Sciences
Division of Materials Sciences and Engineering

Access to Document

10.1103/PhysRevResearch.5.043231

Cite this

@article{ba7cbf0a2b0446c1b5bb266fa0e514e8,

title = "Phononic drumhead surface state in the distorted kagome compound RhPb",

abstract = "RhPb was initially recognized as one of CoSn-like compounds with P6/mmm symmetry, containing an ideal kagome lattice of d-block atoms. However, theoretical calculations predict the realization of the phonon soft mode, which leads to the kagome lattice distortion and stabilization of the structure with P6¯2m symmetry [A. Ptok et al., Phys. Rev. B 104, 054305 (2021)2469-995010.1103/PhysRevB.104.054305]. Here, we present the single crystal x-ray diffraction results supporting this prediction. Furthermore, we discuss the main dynamical properties of RhPb with P6¯2m symmetry, i.e. phonon dispersions and surface Green's functions using the modern theoretical methods based on density functional theory. The bulk phononic dispersion curves contain several flattened bands, Dirac nodal lines, and triple degenerate Dirac points. As a consequence, the phononic drumhead surface state is realized for the (100) surface, terminated by the zigzaglike edge of Pb honeycomb sublattice.",

author = "Andrzej Ptok and Meier, {William R.} and Aksel Kobia{\l}ka and Surajit Basak and Ma{\l}gorzata Sternik and Jan {\L}a{\.z}ewski and Jochym, {Pawe{\l} T.} and McGuire, {Michael A.} and Sales, {Brian C.} and Hu Miao and Przemys{\l}aw Piekarz and Ole{\'s}, {Andrzej M.}",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.",

year = "2023",

month = oct,

doi = "10.1103/PhysRevResearch.5.043231",

language = "English",

volume = "5",

journal = "Physical Review Research",

issn = "2643-1564",

publisher = "American Physical Society",

number = "4",

}

TY - JOUR

T1 - Phononic drumhead surface state in the distorted kagome compound RhPb

AU - Ptok, Andrzej

AU - Meier, William R.

AU - Kobiałka, Aksel

AU - Basak, Surajit

AU - Sternik, Małgorzata

AU - Łażewski, Jan

AU - Jochym, Paweł T.

AU - McGuire, Michael A.

AU - Sales, Brian C.

AU - Miao, Hu

AU - Piekarz, Przemysław

AU - Oleś, Andrzej M.

N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

PY - 2023/10

Y1 - 2023/10

N2 - RhPb was initially recognized as one of CoSn-like compounds with P6/mmm symmetry, containing an ideal kagome lattice of d-block atoms. However, theoretical calculations predict the realization of the phonon soft mode, which leads to the kagome lattice distortion and stabilization of the structure with P6¯2m symmetry [A. Ptok et al., Phys. Rev. B 104, 054305 (2021)2469-995010.1103/PhysRevB.104.054305]. Here, we present the single crystal x-ray diffraction results supporting this prediction. Furthermore, we discuss the main dynamical properties of RhPb with P6¯2m symmetry, i.e. phonon dispersions and surface Green's functions using the modern theoretical methods based on density functional theory. The bulk phononic dispersion curves contain several flattened bands, Dirac nodal lines, and triple degenerate Dirac points. As a consequence, the phononic drumhead surface state is realized for the (100) surface, terminated by the zigzaglike edge of Pb honeycomb sublattice.

AB - RhPb was initially recognized as one of CoSn-like compounds with P6/mmm symmetry, containing an ideal kagome lattice of d-block atoms. However, theoretical calculations predict the realization of the phonon soft mode, which leads to the kagome lattice distortion and stabilization of the structure with P6¯2m symmetry [A. Ptok et al., Phys. Rev. B 104, 054305 (2021)2469-995010.1103/PhysRevB.104.054305]. Here, we present the single crystal x-ray diffraction results supporting this prediction. Furthermore, we discuss the main dynamical properties of RhPb with P6¯2m symmetry, i.e. phonon dispersions and surface Green's functions using the modern theoretical methods based on density functional theory. The bulk phononic dispersion curves contain several flattened bands, Dirac nodal lines, and triple degenerate Dirac points. As a consequence, the phononic drumhead surface state is realized for the (100) surface, terminated by the zigzaglike edge of Pb honeycomb sublattice.

UR - http://www.scopus.com/inward/record.url?scp=85179622260&partnerID=8YFLogxK

U2 - 10.1103/PhysRevResearch.5.043231

DO - 10.1103/PhysRevResearch.5.043231

M3 - Article

AN - SCOPUS:85179622260

SN - 2643-1564

VL - 5

JO - Physical Review Research

JF - Physical Review Research

IS - 4

M1 - 043231

ER -

Phononic drumhead surface state in the distorted kagome compound RhPb

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this