skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electron-momentum dependence of electron-phonon coupling underlies dramatic phonon renormalization in YNi2B2C

Journal Article · · Nature Communications
 [1];  [2];  [3]; ORCiD logo [2]; ORCiD logo [1];  [1];  [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [2]; ORCiD logo [1]
  1. Karlsruhe Inst. of Technology (Germany)
  2. Univ. de Fribourg (Switzerland)
  3. Univ. de Fribourg (Switzerland); Univ. Rennes (France)
  4. Karlsruhe Inst. of Technology (Germany); Lab. Léon Brillouin (CEA-CNRS), Gif-sur-Yvette (France)
  5. Inst. Laue-Langevin (France)
  6. Paul Scherrer Inst., Villigen (Switzerland)
  7. Univ. of Colorado, Boulder, CO (United States)

Electron-phonon coupling, i.e., the scattering of lattice vibrations by electrons and vice versa, is ubiquitous in solids and can lead to emergent ground states such as superconductivity and charge-density wave order. A broad spectral phonon line shape is often interpreted as a marker of strong electron-phonon coupling associated with Fermi surface nesting, i.e., parallel sections of the Fermi surface connected by the phonon momentum. Alternatively broad phonons are known to arise from strong atomic lattice anharmonicity. Here, we show that strong phonon broadening can occur in the absence of both Fermi surface nesting and lattice anharmonicity, if electron-phonon coupling is strongly enhanced for specific values of electron-momentum, k. We use inelastic neutron scattering, soft x-ray angle-resolved photoemission spectroscopy measurements and ab-initio lattice dynamical and electronic band structure calculations to demonstrate this scenario in the highly anisotropic tetragonal electron-phonon superconductor YNi2B2C. This new scenario likely applies to a wide range of compounds.

Research Organization:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Engineering & Technology. Office of Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Swiss National Science Foundation (SNSF)
Grant/Contract Number:
SC0006939; P00P2_170597
OSTI ID:
1903375
Journal Information:
Nature Communications, Vol. 13, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (57)

Phonon profiles in superconducting YNi 2 B 2 C and LuNi 2 B 2 C journal November 1999
Phonon Dispersion in Transition Metals journal October 1977
Lattice Dynamics and Electron-Phonon Interaction in (3,3) Carbon Nanotubes journal December 2004
Quantum hydrogen-bond symmetrization in the superconducting hydrogen sulfide system journal March 2016
Uniaxial pressure control of competing orders in a high-temperature superconductor journal November 2018
Resonant x-ray scattering study of charge-density wave correlations in YBa 2 Cu 3 O 6 + x journal August 2014
Emergence of charge density wave domain walls above the superconducting dome in 1T-TiSe2 journal April 2014
Strongly enhanced charge-density-wave order in monolayer NbSe2 journal July 2015
Generalized susceptibility and magnetic ordering in rare-earth nickel boride carbides journal June 1995
Inelastic Neutron Scattering Study of the 2kF Instability in K2Pt(CN)4Br0.30 x D20 (KCP) journal September 1975
LuNi 2 B 2 C: A novel Ni-based strong-coupling superconductor journal June 1994
The dynamics of charge-density waves journal October 1988
Fermi surface nesting and the origin of charge density waves in metals journal April 2008
Phonon Anomalies Induced by Superconductivity journal November 1997
Classification of charge density waves based on their nature journal February 2015
Observation of Giant Kohn Anomaly in the One-Dimensional Conductor K 2 Pt ( CN ) 4 Br 0.3 · 3 H 2 O journal May 1973
Extended anharmonic collapse of phonon dispersions in SnS and SnSe journal September 2020
Neutron-scattering profile of Q 0 phonons in BCS superconductors journal September 1997
Signature of checkerboard fluctuations in the phonon spectra of a possible polaronic metal La1.2Sr1.8Mn2O7 journal August 2009
Superconductivity and Lattice Instability in Compressed Lithium from Fermi Surface Hot Spots journal February 2006
Soft-X-ray ARPES facility at the ADRESS beamline of the SLS: concepts, technical realisation and scientific applications journal November 2013
From Mott state to superconductivity in 1T-TaS2 journal November 2008
Angle-resolved photoemission observation of the superconducting-gap minimum and its relation to the nesting vector in the phonon-mediated superconductor YNi 2 B 2 C journal May 2010
Inelastic X-ray scattering in YBa2Cu3O6.6 reveals giant phonon anomalies and elastic central peak due to charge-density-wave formation journal November 2013
Three-dimensional Fermi surface of 2 H NbS e 2 : Implications for the mechanism of charge density waves journal June 2018
Nesting Properties and Anisotropy of the Fermi Surface of LuNi 2 B 2 C journal December 1999
Fermi-surface nesting and the origin of the charge-density wave in Nb Se 2 journal May 2006
Alternative route to charge density wave formation in multiband systems journal December 2012
Evidence for nesting-driven charge density wave instabilities in the quasi-two-dimensional material LaAgSb2 journal July 2021
Amplitude/Higgs Modes in Condensed Matter Physics journal March 2015
Pressure Induced Superconductivity in Pristine 1 T TiSe 2 journal November 2009
Charge order from orbital-dependent coupling evidenced by NbSe2 journal May 2015
Magnetic moments induce strong phonon renormalization in FeSi journal November 2015
Giant anharmonic phonon scattering in PbTe journal June 2011
Phonons and related crystal properties from density-functional perturbation theory journal July 2001
Phonons and electron-phonon coupling in YNi 2 B 2 C journal March 2014
Itinerant density wave instabilities at classical and quantum critical points journal July 2015
Strong anharmonicity induces quantum melting of charge density wave in 2 H NbSe 2 under pressure journal October 2015
Anomalous phonons below Tc in superconducting RNi2B2C (R=Lu, Y) journal May 1999
Nature of the quantum metal in a two-dimensional crystalline superconductor journal December 2015
Structural and quantum-state phase transitions in van der Waals layered materials journal July 2017
Direct Observation of the Superconducting Gap in Phonon Spectra journal December 2008
Wave-vector-dependent electron-phonon coupling and the charge-density-wave transition in TbT e 3 journal June 2015
Splitting in the Fermi surface of ZrTe 3 : A surface charge density wave system journal August 2009
High-resolution soft X-ray beamline ADRESS at the Swiss Light Source for resonant inelastic X-ray scattering and angle-resolved photoelectron spectroscopies journal July 2010
Dynamics in the charge-density-wave system NbSe 3 using inelastic x-ray scattering with meV energy resolution journal December 2002
A calculation of the electronic response function in 2H-NbSe 2 including electron-phonon matrix element effects journal December 1978
Anomalous Phonon Scattering Below T c in Y Ni 2 B 2 11 C journal November 1996
Electron-Phonon Coupling in the Conventional Superconductor YNi 2 B 2 C at High Phonon Energies Studied by Time-of-Flight Neutron Spectroscopy journal July 2012
Electron-momentum dependence of electron-phonon coupling underlies dramatic phonon renormalization in YNi2B2C dataset January 2021
Inelastic x-ray study of phonon broadening and charge-density wave formation in ortho-II-ordered YBa 2 Cu 3 O 6.54 journal August 2013
Direct observation of a Fermi surface and superconducting gap in LuNi 2 B 2 C journal April 2008
Linear response in a density-functional mixed-basis approach journal August 1999
Anharmonic suppression of charge density waves in 2 H -NbS 2 journal October 2012
Quantum phase transition from triangular to stripe charge order in NbSe2 journal January 2013
Giant Kohn Anomaly and the Phase Transition in Charge Density Wave ZrTe 3 journal February 2009
Extended Phonon Collapse and the Origin of the Charge-Density Wave in 2 H NbSe 2 journal September 2011

Similar Records

Phonons and electron-phonon coupling in YNi2B2C
Journal Article · Tue Mar 04 00:00:00 EST 2014 · Physical Review B · OSTI ID:1903375

Electronic structure and phase-stability studies on superconducting YNi{sub 2}B{sub 2}C, YRh{sub 3}B, and nonsuperconducting YNi{sub 4}B
Journal Article · Wed Nov 01 00:00:00 EST 1995 · Physical Review, B: Condensed Matter · OSTI ID:1903375

Wave-vector-dependent electron-phonon coupling and the charge-density-wave transition in TbTe3
Journal Article · Mon Jun 01 00:00:00 EDT 2015 · Physical Review. B, Condensed Matter and Materials Physics · OSTI ID:1903375