Strong-coupling charge density wave in a one-dimensional topological metal

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Strong-coupling charge density wave in a one-dimensional topological metal. / Hofmann, Philip; Ugeda, Miguel M.; Tamtögl, Anton; Ruckhofer, Adrian; Ernst, Wolfgang E.; Benedek, Giorgio; Martínez-Galera, Antonio J.; Stróżecka, Anna; Gómez-Rodríguez, José M.; Rienks, Emile; Jensen, Maria Fuglsang; Pascual, José I.; Wells, Justin W.

I: Physical Review B, Bind 99, Nr. 3, 035438, 01.2019.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Hofmann, P, Ugeda, MM, Tamtögl, A, Ruckhofer, A, Ernst, WE, Benedek, G, Martínez-Galera, AJ, Stróżecka, A, Gómez-Rodríguez, JM, Rienks, E, Jensen, MF, Pascual, JI & Wells, JW 2019, 'Strong-coupling charge density wave in a one-dimensional topological metal', Physical Review B, bind 99, nr. 3, 035438. https://doi.org/10.1103/PhysRevB.99.035438

APA

Hofmann, P., Ugeda, M. M., Tamtögl, A., Ruckhofer, A., Ernst, W. E., Benedek, G., ... Wells, J. W. (2019). Strong-coupling charge density wave in a one-dimensional topological metal. Physical Review B, 99(3), [035438]. https://doi.org/10.1103/PhysRevB.99.035438

CBE

Hofmann P, Ugeda MM, Tamtögl A, Ruckhofer A, Ernst WE, Benedek G, Martínez-Galera AJ, Stróżecka A, Gómez-Rodríguez JM, Rienks E, Jensen MF, Pascual JI, Wells JW. 2019. Strong-coupling charge density wave in a one-dimensional topological metal. Physical Review B. 99(3). https://doi.org/10.1103/PhysRevB.99.035438

MLA

Vancouver

Hofmann P, Ugeda MM, Tamtögl A, Ruckhofer A, Ernst WE, Benedek G o.a. Strong-coupling charge density wave in a one-dimensional topological metal. Physical Review B. 2019 jan;99(3). 035438. https://doi.org/10.1103/PhysRevB.99.035438

Author

Hofmann, Philip ; Ugeda, Miguel M. ; Tamtögl, Anton ; Ruckhofer, Adrian ; Ernst, Wolfgang E. ; Benedek, Giorgio ; Martínez-Galera, Antonio J. ; Stróżecka, Anna ; Gómez-Rodríguez, José M. ; Rienks, Emile ; Jensen, Maria Fuglsang ; Pascual, José I. ; Wells, Justin W. / Strong-coupling charge density wave in a one-dimensional topological metal. I: Physical Review B. 2019 ; Bind 99, Nr. 3.

Bibtex

@article{0988195ec04e41df80ffb8f2e417b305,
title = "Strong-coupling charge density wave in a one-dimensional topological metal",
abstract = "Scanning tunneling microscopy, low-energy electron diffraction, and helium atom scattering show a transition to a dimerizationlike reconstruction in the one-dimensional atomic chains on Bi(114) at low temperatures. One-dimensional metals are generally unstable against such a Peierls-like distortion, but neither the shape nor the spin texture of the Bi(114) Fermi contour favors the transition: Although the Fermi contour is one dimensional and thus perfectly nested, the very short nesting vector 2kF is inconsistent with the periodicity of the distortion. Moreover, the nesting occurs between two Fermi contour branches of opposite spin, which is also expected to prevent the formation of a Peierls phase. Indeed, angle-resolved photoemission spectroscopy does not reveal any change in the electronic structure near the Fermi energy around the phase transition. On the other hand, distinct changes at higher binding energies are found to accompany the structural phase transition. This suggests that the transition of a strong-coupling type and that it is driven by phonon entropy rather than electronic entropy. This picture is supported by the observed short correlation length of the pairing distortion, the second-order-like character of the phase transition, and pronounced differences between the surface phonon spectra of the high- and low-temperature phases.",
keywords = "DYNAMICS, INSTABILITY, INSULATOR, PEIERLS TRANSITION, STATE, SURFACES, X-RAY-SCATTERING",
author = "Philip Hofmann and Ugeda, {Miguel M.} and Anton Tamt{\"o}gl and Adrian Ruckhofer and Ernst, {Wolfgang E.} and Giorgio Benedek and Mart{\'i}nez-Galera, {Antonio J.} and Anna Str{\'o}żecka and G{\'o}mez-Rodr{\'i}guez, {Jos{\'e} M.} and Emile Rienks and Jensen, {Maria Fuglsang} and Pascual, {Jos{\'e} I.} and Wells, {Justin W.}",
year = "2019",
month = "1",
doi = "10.1103/PhysRevB.99.035438",
language = "English",
volume = "99",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "american physical society",
number = "3",

}

RIS

TY - JOUR

T1 - Strong-coupling charge density wave in a one-dimensional topological metal

AU - Hofmann, Philip

AU - Ugeda, Miguel M.

AU - Tamtögl, Anton

AU - Ruckhofer, Adrian

AU - Ernst, Wolfgang E.

AU - Benedek, Giorgio

AU - Martínez-Galera, Antonio J.

AU - Stróżecka, Anna

AU - Gómez-Rodríguez, José M.

AU - Rienks, Emile

AU - Jensen, Maria Fuglsang

AU - Pascual, José I.

AU - Wells, Justin W.

PY - 2019/1

Y1 - 2019/1

N2 - Scanning tunneling microscopy, low-energy electron diffraction, and helium atom scattering show a transition to a dimerizationlike reconstruction in the one-dimensional atomic chains on Bi(114) at low temperatures. One-dimensional metals are generally unstable against such a Peierls-like distortion, but neither the shape nor the spin texture of the Bi(114) Fermi contour favors the transition: Although the Fermi contour is one dimensional and thus perfectly nested, the very short nesting vector 2kF is inconsistent with the periodicity of the distortion. Moreover, the nesting occurs between two Fermi contour branches of opposite spin, which is also expected to prevent the formation of a Peierls phase. Indeed, angle-resolved photoemission spectroscopy does not reveal any change in the electronic structure near the Fermi energy around the phase transition. On the other hand, distinct changes at higher binding energies are found to accompany the structural phase transition. This suggests that the transition of a strong-coupling type and that it is driven by phonon entropy rather than electronic entropy. This picture is supported by the observed short correlation length of the pairing distortion, the second-order-like character of the phase transition, and pronounced differences between the surface phonon spectra of the high- and low-temperature phases.

AB - Scanning tunneling microscopy, low-energy electron diffraction, and helium atom scattering show a transition to a dimerizationlike reconstruction in the one-dimensional atomic chains on Bi(114) at low temperatures. One-dimensional metals are generally unstable against such a Peierls-like distortion, but neither the shape nor the spin texture of the Bi(114) Fermi contour favors the transition: Although the Fermi contour is one dimensional and thus perfectly nested, the very short nesting vector 2kF is inconsistent with the periodicity of the distortion. Moreover, the nesting occurs between two Fermi contour branches of opposite spin, which is also expected to prevent the formation of a Peierls phase. Indeed, angle-resolved photoemission spectroscopy does not reveal any change in the electronic structure near the Fermi energy around the phase transition. On the other hand, distinct changes at higher binding energies are found to accompany the structural phase transition. This suggests that the transition of a strong-coupling type and that it is driven by phonon entropy rather than electronic entropy. This picture is supported by the observed short correlation length of the pairing distortion, the second-order-like character of the phase transition, and pronounced differences between the surface phonon spectra of the high- and low-temperature phases.

KW - DYNAMICS

KW - INSTABILITY

KW - INSULATOR

KW - PEIERLS TRANSITION

KW - STATE

KW - SURFACES

KW - X-RAY-SCATTERING

UR - http://www.scopus.com/inward/record.url?scp=85060888801&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.99.035438

DO - 10.1103/PhysRevB.99.035438

M3 - Journal article

VL - 99

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 3

M1 - 035438

ER -