Neutron scattering study of the kagome metal

X. Y. Li; D. Reig-I-Plessis; P. F. Liu; S. Wu; B. T. Wang; A. M. Hallas; M. B. Stone; C. Broholm; M. C. Aronson

doi:10.1103/PhysRevB.104.134305

Neutron scattering study of the kagome metal

X. Y. Li, D. Reig-I-Plessis, P. F. Liu, S. Wu, B. T. Wang, A. M. Hallas, M. B. Stone, C. Broholm, M. C. Aronson

Direct Geometry

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

1 Scopus citations

Abstract

is a rare example of a correlated metal in which the Mn moments form a kagome lattice. The absence of magnetic ordering to the lowest temperatures suggests that geometrical frustration of magnetic interactions may lead to strong magnetic fluctuations. We have performed inelastic neutron scattering measurements on , finding that phonon scattering dominates for energies from ∼20-50 meV. These results are in good agreement with ab initio calculations of the phonon dispersions and densities of states, and as well reproduce the measured specific heat. A weak magnetic signal was detected at energies less than ∼10 meV, present only at the lowest temperatures. The magnetic signal is broad and quasielastic, as expected for metallic paramagnets.

Original language	English
Article number	134305
Journal	Physical Review B
Volume	104
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.104.134305
State	Published - Oct 1 2021

Funding

We thank B. Patrick for assistance in carrying out the single-crystal XRD measurements. X.Y.L. and M.C.A. acknowledge support from NSF under Award No. NSF-DMR-1807451. A.M.H. acknowledges support from NSERC of Canada and the CIFAR Azrieli Global Scholars Program. This research was undertaken thanks in part to funding from the Max Planck-UBC-UTokyo Centre for Quantum Materials and the Canada First Research Excellence Fund, Quantum Materials and Future Technologies Program. B.-T.W. and P.-F.L. acknowledge financial support from the Natural Science Foundation of China (Grant No. 12074381). C.B. was supported as part of the Institute for Quantum Matter, an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences under Award No. DE-SC0019331. A portion of this research used resources at the Spallation Neutron Source, a DOE office of Science User Facility operated by the Oak Ridge National Laboratory. National Science Foundation Natural Sciences and Engineering Research Council of Canada National Natural Science Foundation of China U.S. Department of Energy Oak Ridge National Laboratory

Funders	Funder number
Max Planck-UBC-UTokyo Centre for Quantum Materials and the Canada First Research Excellence Fund
National Science Foundation Natural Sciences and Engineering Research Council of Canada National Natural Science Foundation of China U.S. Department of Energy Oak Ridge National Laboratory
Quantum Materials and Future Technologies Program
U.S. Department of Energy
Office of Science
Basic Energy Sciences	DE-SC0019331
Natural Sciences and Engineering Research Council of Canada
National Natural Science Foundation of China	12074381

Access to Document

10.1103/PhysRevB.104.134305

Cite this

@article{f35582c96dbf4352b91dcfb81e9542d9,

title = "Neutron scattering study of the kagome metal",

abstract = "is a rare example of a correlated metal in which the Mn moments form a kagome lattice. The absence of magnetic ordering to the lowest temperatures suggests that geometrical frustration of magnetic interactions may lead to strong magnetic fluctuations. We have performed inelastic neutron scattering measurements on , finding that phonon scattering dominates for energies from ∼20-50 meV. These results are in good agreement with ab initio calculations of the phonon dispersions and densities of states, and as well reproduce the measured specific heat. A weak magnetic signal was detected at energies less than ∼10 meV, present only at the lowest temperatures. The magnetic signal is broad and quasielastic, as expected for metallic paramagnets.",

author = "Li, {X. Y.} and D. Reig-I-Plessis and Liu, {P. F.} and S. Wu and Wang, {B. T.} and Hallas, {A. M.} and Stone, {M. B.} and C. Broholm and Aronson, {M. C.}",

note = "Publisher Copyright: {\textcopyright}2021 American Physical Society",

year = "2021",

month = oct,

day = "1",

doi = "10.1103/PhysRevB.104.134305",

language = "English",

volume = "104",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "13",

}

TY - JOUR

T1 - Neutron scattering study of the kagome metal

AU - Li, X. Y.

AU - Reig-I-Plessis, D.

AU - Liu, P. F.

AU - Wu, S.

AU - Wang, B. T.

AU - Hallas, A. M.

AU - Stone, M. B.

AU - Broholm, C.

AU - Aronson, M. C.

PY - 2021/10/1

Y1 - 2021/10/1

N2 - is a rare example of a correlated metal in which the Mn moments form a kagome lattice. The absence of magnetic ordering to the lowest temperatures suggests that geometrical frustration of magnetic interactions may lead to strong magnetic fluctuations. We have performed inelastic neutron scattering measurements on , finding that phonon scattering dominates for energies from ∼20-50 meV. These results are in good agreement with ab initio calculations of the phonon dispersions and densities of states, and as well reproduce the measured specific heat. A weak magnetic signal was detected at energies less than ∼10 meV, present only at the lowest temperatures. The magnetic signal is broad and quasielastic, as expected for metallic paramagnets.

AB - is a rare example of a correlated metal in which the Mn moments form a kagome lattice. The absence of magnetic ordering to the lowest temperatures suggests that geometrical frustration of magnetic interactions may lead to strong magnetic fluctuations. We have performed inelastic neutron scattering measurements on , finding that phonon scattering dominates for energies from ∼20-50 meV. These results are in good agreement with ab initio calculations of the phonon dispersions and densities of states, and as well reproduce the measured specific heat. A weak magnetic signal was detected at energies less than ∼10 meV, present only at the lowest temperatures. The magnetic signal is broad and quasielastic, as expected for metallic paramagnets.

UR - http://www.scopus.com/inward/record.url?scp=85117066047&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.104.134305

DO - 10.1103/PhysRevB.104.134305

M3 - Article

AN - SCOPUS:85117066047

SN - 2469-9950

VL - 104

JO - Physical Review B

JF - Physical Review B

IS - 13

M1 - 134305

ER -

Neutron scattering study of the kagome metal

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this