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Discovery of charge density wave in a kagome lattice antiferromagnet

Journal Article · · Nature (London)
 [1];  [1];  [2];  [3];  [3];  [4];  [4];  [5];  [4];  [1];  [1];  [1];  [6];  [6];  [7];  [7];  [7];  [8];  [3];  [1] more »;  [1] « less
  1. Rice University, Houston, TX (United States)
  2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  3. University of Washington, Seattle, WA (United States)
  4. Princeton University, NJ (United States)
  5. Rice University, Houston, TX (United States); University of California, Berkeley, CA (United States)
  6. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
  7. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  8. University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
+ Show Author Affiliations
A hallmark of strongly correlated quantum materials is the rich phase diagram resulting from competing and intertwined phases with nearly degenerate ground state energies. A well-known example is the copper oxides, where a charge density wave (CDW) is ordered well above and strongly coupled to the magnetic order to form spin-charge separated stripes that compete with superconductivity. Recently, such rich phase diagrams have also been revealed in correlated topological materials. In two-dimensional kagome lattice metals consisting of corner-sharing triangles, the geometry of the lattice can produce flat bands with localized electrons, non-trivial topology, chiral magnetic order, superconductivity and CDW order. While CDW has been found in weakly electron correlated nonmagnetic AV3Sb5 (A = K, Rb, Cs), it has not yet been observed in correlated magnetic ordered kagome lattice metals. Here we report the discovery of CDW within the antiferromagnetic (AFM) ordered phase of kagome lattice FeGe. The CDW in FeGe occurs at wavevectors identical to that of AV3Sb5, enhances the AFM ordered moment, and induces an emergent anomalous Hall effect. Furthermore, our findings suggest that CDW in FeGe arises from the combination of electron correlations-driven AFM order and van Hove singularities-driven instability possibly associated with a chiral flux phase, in stark contrast to strongly correlated copper oxides and nickelates, where the CDW precedes or accompanies the magnetic order.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); William Marsh Rice University, Houston, TX (United States)
Sponsoring Organization:
Air Force Office of Scientific Research (AFOSR); Gordon and Betty Moore Foundation; National Science Foundation (NSF); Robert A. Welch Foundation; US Air Force Office of Scientific Research (AFOSR); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-05CH11231; AC02-76SF00515; AC05-00OR22725; FG02-05ER46200; SC0021421
OSTI ID:
2907771
Alternate ID(s):
OSTI ID: 1888890
Journal Information:
Nature (London), Journal Name: Nature (London) Journal Issue: 7927 Vol. 609; ISSN 1476-4687; ISSN 0028-0836
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (44)

On the Crystal Structure of Fe6Ge5and Its Relationship toB8-Type Structures journal November 1998
When two is enough: On the origin of diverse crystal structures and physical properties in the Fe-Ge system journal February 2019
Chiral flux phase in the Kagome superconductor AV3Sb5 journal July 2021
Massive Dirac fermions in a ferromagnetic kagome metal journal March 2018
Theoretical prediction of a strongly correlated Dirac metal journal July 2014
Large anomalous Hall effect in a half-Heusler antiferromagnet journal July 2016
Intertwined density waves in a metallic nickelate journal November 2020
Dirac fermions and flat bands in the ideal kagome metal FeSn journal December 2019
Unconventional chiral charge order in kagome superconductor KV3Sb5 journal June 2021
Charge order and superconductivity in kagome materials journal December 2021
Twofold van Hove singularity and origin of charge order in topological kagome superconductor CsV3Sb5 journal January 2022
Giant and anisotropic many-body spin–orbit tunability in a strongly correlated kagome magnet journal September 2018
Quantum-limit Chern topological magnetism in TbMn6Sn6 journal July 2020
Cascade of correlated electron states in the kagome superconductor CsV3Sb5 journal September 2021
Roton pair density wave in a strong-coupling kagome superconductor journal September 2021
Time-reversal symmetry-breaking charge order in a kagome superconductor journal February 2022
Spin excitations in metallic kagome lattice FeSn and CoSn journal November 2021
Endotaxial growth of Fe x Ge single-crystals on Ge(001) substrates journal January 2018
Cuprate superconductors as viewed through a striped lens journal October 2020
Susceptibility Measurements and Magnetic Ordering of Hexagonal FeGe journal August 1972
Neutron diffraction studies of the low-temperature magnetic structure of hexagonal FeGe journal October 1984
Magnetic phase diagram of hexagonal FeGe determined by neutron diffraction journal March 1988
Signatures of Hundness in kagome metals journal September 2020
Field-induced topological Hall effect and double-fan spin structure with a c -axis component in the metallic kagome antiferromagnetic compound Y Mn 6 Sn 6 journal January 2021
Concurrence of anomalous Hall effect and charge density wave in a superconducting topological kagome metal journal July 2021
Non-Fermi-liquid states and pairing instability of a general model of copper oxide metals journal June 1997
Strong Correlations and Magnetic Frustration in the High T c Iron Pnictides journal August 2008
Cs V 3 Sb 5 : A Z 2 Topological Kagome Metal with a Superconducting Ground State journal December 2020
Analysis of Charge Order in the Kagome Metal A V 3 Sb 5 ( A = K , Rb , Cs ) journal November 2021
Model for a Quantum Hall Effect without Landau Levels: Condensed-Matter Realization of the "Parity Anomaly" journal October 1988
Simultaneous Ordering of Holes and Spins in La 2 Ni O 4.125 journal August 1994
Melting of Quasi-Two-Dimensional Charge Stripes in La 5 / 3 Sr 1 / 3 NiO 4 journal September 1997
Electronic, magnetic, and thermodynamic properties of the kagome layer compound FeSn journal November 2019
Three-Dimensional Charge Density Wave and Surface-Dependent Vortex-Core States in a Kagome Superconductor CsV 3 Sb 5 journal August 2021
Charge-Density-Wave-Induced Bands Renormalization and Energy Gaps in a Kagome Superconductor RbV 3 Sb 5 journal October 2021
The dynamics of charge-density waves journal October 1988
How to detect fluctuating stripes in the high-temperature superconductors journal October 2003
Anomalous Hall effect journal May 2010
Implementation of cross correlation for energy discrimination on the time-of-flight spectrometer CORELLI journal March 2018
Giant, unconventional anomalous Hall effect in the metallic frustrated magnet candidate, KV 3 Sb 5 journal July 2020
Competing magnetic phases and fluctuation-driven scalar spin chirality in the kagome metal YMn 6 Sn 6 journal December 2020
A New Intermetallic Compound FeGe journal April 1963
Crystallographic Computing System JANA2006: General features journal January 2014
The Partial Equilibrium Diagram of the Fe-Ge System in the Range 40-72 at. % Ge, and the Crystallisation of some Iron Germanides by Chemical Transport Reactions. journal January 1967

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