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

This content will become publicly available on December 1, 2021

Title: Incommensurate Spin Fluctuations in the Spin-Triplet Superconductor Candidate UTe2

Abstract

Spin-triplet superconductors are of extensive current interest because they can host topological state and Majorana fermions important for quantum computation. The uranium-based heavy-fermion superconductor UTe2 has been argued as a spin-triplet superconductor similar to UGe2, URhGe, and UCoGe, where the superconducting phase is near (or coexists with) a ferromagnetic (FM) instability and spin-triplet electron pairing is driven by FM spin fluctuations. Here we use neutron scattering to show that, although UTe2 exhibits no static magnetic order down to 0.3 K, its magnetism in the [0,K,L] plane is dominated by incommensurate spin fluctuations near an antiferromagnetic ordering wave vector and extends to at least 2.6 meV. We are able to understand the dominant incommensurate spin fluctuations of UTe2 in terms of its electronic structure calculated using a combined density-functional and dynamic mean-field theory.

Authors:
 [1];  [2];  [2]; ORCiD logo [3]; ORCiD logo [4];  [1]; ORCiD logo [1]
  1. Rice Univ., Houston, TX (United States)
  2. Univ. of California, San Diego, CA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rice Univ., Houston, TX (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation (NSF)
OSTI Identifier:
1735405
Alternate Identifier(s):
OSTI ID: 1760601
Report Number(s):
LA-UR-20-24870
Journal ID: ISSN 0031-9007
Grant/Contract Number:  
AC05-00OR22725; SC0012311; FG02-04-ER46105; DMR-1810310; SC0018197; 89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 125; Journal Issue: 23; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Spin-singlet pairing; spin-triplet pairing; superconducting fluctuations

Citation Formats

Duan, Chunruo, Sasmal, Kalyan, Maple, M. Brian, Podlesnyak, Andrey, Zhu, Jian-Xin, Si, Qimiao, and Dai, Pengcheng. Incommensurate Spin Fluctuations in the Spin-Triplet Superconductor Candidate UTe2. United States: N. p., 2020. Web. https://doi.org/10.1103/physrevlett.125.237003.
Duan, Chunruo, Sasmal, Kalyan, Maple, M. Brian, Podlesnyak, Andrey, Zhu, Jian-Xin, Si, Qimiao, & Dai, Pengcheng. Incommensurate Spin Fluctuations in the Spin-Triplet Superconductor Candidate UTe2. United States. https://doi.org/10.1103/physrevlett.125.237003
Duan, Chunruo, Sasmal, Kalyan, Maple, M. Brian, Podlesnyak, Andrey, Zhu, Jian-Xin, Si, Qimiao, and Dai, Pengcheng. Tue . "Incommensurate Spin Fluctuations in the Spin-Triplet Superconductor Candidate UTe2". United States. https://doi.org/10.1103/physrevlett.125.237003. https://www.osti.gov/servlets/purl/1735405.
@article{osti_1735405,
title = {Incommensurate Spin Fluctuations in the Spin-Triplet Superconductor Candidate UTe2},
author = {Duan, Chunruo and Sasmal, Kalyan and Maple, M. Brian and Podlesnyak, Andrey and Zhu, Jian-Xin and Si, Qimiao and Dai, Pengcheng},
abstractNote = {Spin-triplet superconductors are of extensive current interest because they can host topological state and Majorana fermions important for quantum computation. The uranium-based heavy-fermion superconductor UTe2 has been argued as a spin-triplet superconductor similar to UGe2, URhGe, and UCoGe, where the superconducting phase is near (or coexists with) a ferromagnetic (FM) instability and spin-triplet electron pairing is driven by FM spin fluctuations. Here we use neutron scattering to show that, although UTe2 exhibits no static magnetic order down to 0.3 K, its magnetism in the [0,K,L] plane is dominated by incommensurate spin fluctuations near an antiferromagnetic ordering wave vector and extends to at least 2.6 meV. We are able to understand the dominant incommensurate spin fluctuations of UTe2 in terms of its electronic structure calculated using a combined density-functional and dynamic mean-field theory.},
doi = {10.1103/physrevlett.125.237003},
journal = {Physical Review Letters},
number = 23,
volume = 125,
place = {United States},
year = {2020},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Generalized Gradient Approximation Made Simple
journal, October 1996

  • Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias
  • Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868
  • DOI: 10.1103/PhysRevLett.77.3865

Superconductivity on the Border of Weak Itinerant Ferromagnetism in UCoGe
journal, August 2007


Coexistence of superconductivity and ferromagnetism in polycrystalline UGe 2
journal, August 2001


Resonance in the electron-doped high-transition-temperature superconductor Pr0.88LaCe0.12CuO4-δ
journal, July 2006

  • Wilson, Stephen D.; Dai, Pengcheng; Li, Shiliang
  • Nature, Vol. 442, Issue 7098
  • DOI: 10.1038/nature04857

Microscopic Theory of Superconductivity
journal, April 1957


Pressure-induced superconductivity in a ferromagnet UGe 2
journal, December 2000

  • Tateiwa, N.; Kobayashi, T. C.; Hanazono, K.
  • Journal of Physics: Condensed Matter, Vol. 13, Issue 1
  • DOI: 10.1088/0953-8984/13/1/103

Unconventional superconductivity
journal, April 2017


Extreme magnetic field-boosted superconductivity
journal, October 2019


Coexistence of superconductivity and ferromagnetism in URhGe
journal, October 2001

  • Aoki, Dai; Huxley, Andrew; Ressouche, Eric
  • Nature, Vol. 413, Issue 6856
  • DOI: 10.1038/35098048

Odd-Parity Topological Superconductors: Theory and Application to Cu x Bi 2 Se 3
journal, August 2010


Magnetically driven superconductivity in CeCu2Si2
journal, December 2010

  • Stockert, O.; Arndt, J.; Faulhaber, E.
  • Nature Physics, Vol. 7, Issue 2
  • DOI: 10.1038/nphys1852

Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb 2
journal, September 2019


Evidence for Incommensurate Spin Fluctuations in Sr 2 RuO 4
journal, October 1999


Spin Resonance in the d -Wave Superconductor CeCoIn 5
journal, February 2008


The effect of collective spin-1 excitations on electronic spectra in high- T c superconductors
journal, January 2006


Nature of the spin resonance mode in CeCoIn5
journal, May 2020


Nearly ferromagnetic spin-triplet superconductivity
journal, August 2019


Topological odd-parity superconductors
journal, June 2010


Unpaired Majorana fermions in quantum wires
journal, October 2001


Brillouin scattering on UTe single crystals
journal, July 1993


Chiral superconductivity in heavy-fermion metal UTe2
journal, March 2020


Electronic structure calculations with dynamical mean-field theory
journal, August 2006


Thermodynamic Investigation of Metamagnetism in Pulsed High Magnetic Fields on Heavy Fermion Superconductor UTe 2
journal, August 2019

  • Imajo, Shusaku; Kohama, Yoshimitsu; Miyake, Atsushi
  • Journal of the Physical Society of Japan, Vol. 88, Issue 8
  • DOI: 10.7566/JPSJ.88.083705

The extraordinary phases of liquid 3 He
journal, July 1997


Dynamical mean-field theory within the full-potential methods: Electronic structure of CeIrIn 5 , CeCoIn 5 , and CeRhIn 5
journal, May 2010


Broken time-reversal symmetry in the topological superconductor UPt3
journal, March 2020


Horizontal Line Nodes in Sr 2 RuO 4 Proved by Spin Resonance
journal, May 2020

  • Iida, Kazuki; Kofu, Maiko; Suzuki, Katsuhiro
  • Journal of the Physical Society of Japan, Vol. 89, Issue 5
  • DOI: 10.7566/JPSJ.89.053702

Absence of a Large Superconductivity-Induced Gap in Magnetic Fluctuations of Sr 2 RuO 4
journal, April 2017


Antiferromagnetic order and spin dynamics in iron-based superconductors
journal, August 2015


Evidence for a pressure-induced antiferromagnetic quantum critical point in intermediate-valence UTe 2
journal, October 2020

  • Thomas, S. M.; Santos, F. B.; Christensen, M. H.
  • Science Advances, Vol. 6, Issue 42
  • DOI: 10.1126/sciadv.abc8709

Single Crystal Growth and Magnetic Properties of UTe 2
journal, January 2006

  • Ikeda, Shugo; Sakai, Hironori; Aoki, Dai
  • Journal of the Physical Society of Japan, Vol. 75, Issue Suppl
  • DOI: 10.1143/JPSJS.75S.116

Odd-Parity Triplet Superconducting Phase in Multiorbital Materials with a Strong Spin-Orbit Coupling: Application to Doped Sr 2 IrO 4
journal, October 2014


Magnetic Quantum Critical Point and Superconductivity in UPt 3 Doped with Pd
journal, October 2000


The superconducting phases of UPt 3
journal, March 2002


Unconventional Superconductivity in Heavy Fermion UTe 2
journal, April 2019

  • Aoki, Dai; Nakamura, Ai; Honda, Fuminori
  • Journal of the Physical Society of Japan, Vol. 88, Issue 4
  • DOI: 10.7566/JPSJ.88.043702

Spin Fluctuations in Sr 2 RuO 4 from Polarized Neutron Scattering: Implications for Superconductivity
journal, February 2019


Is Sr 2 RuO 4 a chiral p-wave superconductor?
journal, March 2009


Magnetic Excitations in the Ferromagentic Superconductor U G e 2
journal, November 2003


Quasi-Two-Dimensional Fermi Surfaces and Unitary Spin-Triplet Pairing in the Heavy Fermion Superconductor UTe 2
journal, November 2019


Coexistence of ferromagnetic fluctuations and superconductivity in the actinide superconductor UTe 2
journal, October 2019


Observation of broken time-reversal symmetry in the heavy-fermion superconductor UPt3
journal, July 2014


Spin-Triplet Superconductivity due to Antiferromagnetic Spin-Fluctuation in Sr 2 RuO 4
journal, November 2000


Coexistence of p -state superconductivity and itinerant ferromagnetism
journal, October 1980


125 Te-NMR Study on a Single Crystal of Heavy Fermion Superconductor UTe 2
journal, July 2019

  • Tokunaga, Yo; Sakai, Hironori; Kambe, Shinsaku
  • Journal of the Physical Society of Japan, Vol. 88, Issue 7
  • DOI: 10.7566/JPSJ.88.073701

Magnetic order and fluctuations in superconducting UPt 3
journal, February 1988


Dynamical mean-field theory of strongly correlated fermion systems and the limit of infinite dimensions
journal, January 1996

  • Georges, Antoine; Kotliar, Gabriel; Krauth, Werner
  • Reviews of Modern Physics, Vol. 68, Issue 1
  • DOI: 10.1103/RevModPhys.68.13

Anisotropic Critical Magnetic Fluctuations in the Ferromagnetic Superconductor UCoGe
journal, October 2011


Electronic correlation induced expansion of Fermi pockets in δ -plutonium
journal, June 2020


Crossover from weak to strong pairing in unconventional superconductors
journal, June 2011


Orbital-selective Kondo lattice and enigmatic f electrons emerging from inside the antiferromagnetic phase of a heavy fermion
journal, October 2019

  • Giannakis, Ioannis; Leshen, Justin; Kavai, Mariam
  • Science Advances, Vol. 5, Issue 10
  • DOI: 10.1126/sciadv.aaw9061

High-temperature superconductivity in iron pnictides and chalcogenides
journal, March 2016


Doping a Mott insulator: Physics of high-temperature superconductivity
journal, January 2006

  • Lee, Patrick A.; Nagaosa, Naoto; Wen, Xiao-Gang
  • Reviews of Modern Physics, Vol. 78, Issue 1
  • DOI: 10.1103/RevModPhys.78.17

Low Energy Band Structure and Symmetries of UTe 2 from Angle-Resolved Photoemission Spectroscopy
journal, February 2020


A universal relationship between magnetic resonance and superconducting gap in unconventional superconductors
journal, October 2009

  • Yu, G.; Li, Y.; Motoyama, E. M.
  • Nature Physics, Vol. 5, Issue 12
  • DOI: 10.1038/nphys1426

The superconductivity of Sr 2 RuO 4 and the physics of spin-triplet pairing
journal, May 2003


Topological superconductors: a review
journal, May 2017


Superconductivity on the border of itinerant-electron ferromagnetism in UGe2
journal, August 2000

  • Saxena, S. S.; Agarwal, P.; Ahilan, K.
  • Nature, Vol. 406, Issue 6796
  • DOI: 10.1038/35020500

A common thread: The pairing interaction for unconventional superconductors
journal, October 2012


Magnetic order in the different superconducting states of UPt 3
journal, August 1989


Topological invariants for the Fermi surface of a time-reversal-invariant superconductor
journal, April 2010