Anisotropy and multiband superconductivity in Sr2RuO4 determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in Sr2RuO4]

Kuhn, S. J.; Morgenlander, W.; Louden, E. R.; Rastovski, C.; Gannon, W. J.; Takatsu, H.; Peets, D. C.; Maeno, Y.; Dewhurst, C. D.; Gavilano, J.; Eskildsen, M. R.

doi:10.1103/PhysRevB.96.174507

Title: Anisotropy and multiband superconductivity in ${Sr}_{2} {RuO}_{4}$ determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in ${Sr}_{2} {RuO}_{4}$ ]

Abstract

Despite numerous studies the exact nature of the order parameter in superconducting Sr₂RuO₄ remains unresolved. We have extended previous small-angle neutron scattering studies of the vortex lattice in this material to a wider field range, higher temperatures, and with the field applied close to both the <100> and <110> basal plane directions. Measurements at high field were made possible by the use of both spin polarization and analysis to improve the signal-to-noise ratio. Rotating the field towards the basal plane causes a distortion of the square vortex lattice observed for H // <001> and also a symmetry change to a distorted triangular symmetry for fields close to <100>.The vortex lattice distortion allows us to determine the intrinsic superconducting anisotropy between the c axis and the Ru-O basal plane, yielding a value of ~60 at low temperature and low to intermediate fields. This greatly exceeds the upper critical field anisotropy of ~20 at low temperature, reminiscent of Pauli limiting. Indirect evidence for Pauli paramagnetic effects on the unpaired quasiparticles in the vortex cores are observed, but a direct detection lies below the measurement sensitivity. The superconducting anisotropy is found to be independent of temperature but increases for fields > 1 T,more »« less

Authors:

Kuhn, S. J. ^[1]; Morgenlander, W. ^[2]; Louden, E. R. ^[2]; Rastovski, C. ^[2]; Gannon, W. J. ^[3]; Takatsu, H. ^[4]; Peets, D. C. ^[5]; Maeno, Y. ^[4]; Dewhurst, C. D. ^[6]; Gavilano, J. ^[7];

^[2]

Univ. of Notre Dame, Notre Dame, IN (United States); Duke Univ., Durham, NC (United States)
Univ. of Notre Dame, Notre Dame, IN (United States)
Northwestern Univ., Evanston, IL (United States); Texas A & M Univ., College Station, TX (United States)
Kyoto Univ., Kyoto (Japan)
Kyoto Univ., Kyoto (Japan); Fudan Univ., Shanghai (China)
Institut Laue-Langevin, Grenoble (France)
Paul Scherrer Inst. (PSI), Villigen (Switzerland)

Publication Date:: 2017-11-14

Research Org.:: Univ. of Notre Dame, IN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1408758

Alternate Identifier(s):: OSTI ID: 1408791

Grant/Contract Number:: SC0005051

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 96; Journal Issue: 17; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Kuhn, S. J., Morgenlander, W., Louden, E. R., Rastovski, C., Gannon, W. J., Takatsu, H., Peets, D. C., Maeno, Y., Dewhurst, C. D., Gavilano, J., and Eskildsen, M. R.. Anisotropy and multiband superconductivity in Sr2RuO4 determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in Sr2RuO4].  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevB.96.174507.

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                    Kuhn, S. J., Morgenlander, W., Louden, E. R., Rastovski, C., Gannon, W. J., Takatsu, H., Peets, D. C., Maeno, Y., Dewhurst, C. D., Gavilano, J., & Eskildsen, M. R.. Anisotropy and multiband superconductivity in Sr2RuO4 determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in Sr2RuO4].  United States.  https://doi.org/10.1103/PhysRevB.96.174507

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                    Kuhn, S. J., Morgenlander, W., Louden, E. R., Rastovski, C., Gannon, W. J., Takatsu, H., Peets, D. C., Maeno, Y., Dewhurst, C. D., Gavilano, J., and Eskildsen, M. R.. Tue .  
"Anisotropy and multiband superconductivity in Sr2RuO4 determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in Sr2RuO4]".  United States.  https://doi.org/10.1103/PhysRevB.96.174507.  https://www.osti.gov/servlets/purl/1408758.

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@article{osti_1408758,

  title        = {Anisotropy and multiband superconductivity in Sr2RuO4 determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in Sr2RuO4]},

  author       = {Kuhn, S. J. and Morgenlander, W. and Louden, E. R. and Rastovski, C. and Gannon, W. J. and Takatsu, H. and Peets, D. C. and Maeno, Y. and Dewhurst, C. D. and Gavilano, J. and Eskildsen, M. R.},

  abstractNote = {Despite numerous studies the exact nature of the order parameter in superconducting Sr2RuO4 remains unresolved. We have extended previous small-angle neutron scattering studies of the vortex lattice in this material to a wider field range, higher temperatures, and with the field applied close to both the <100> and <110> basal plane directions. Measurements at high field were made possible by the use of both spin polarization and analysis to improve the signal-to-noise ratio. Rotating the field towards the basal plane causes a distortion of the square vortex lattice observed for H // <001> and also a symmetry change to a distorted triangular symmetry for fields close to <100>.The vortex lattice distortion allows us to determine the intrinsic superconducting anisotropy between the c axis and the Ru-O basal plane, yielding a value of ~60 at low temperature and low to intermediate fields. This greatly exceeds the upper critical field anisotropy of ~20 at low temperature, reminiscent of Pauli limiting. Indirect evidence for Pauli paramagnetic effects on the unpaired quasiparticles in the vortex cores are observed, but a direct detection lies below the measurement sensitivity. The superconducting anisotropy is found to be independent of temperature but increases for fields > 1 T, indicating multiband superconductvity in Sr2RuO4. Lastly, the temperature dependence of the scattered intensity provides further support for gap nodes or deep minima in the superconducting gap.},

  doi          = {10.1103/PhysRevB.96.174507},

  journal      = {Physical Review B},

  number       = 17,

  volume       = 96,

  place        = {United States},

  year         = {2017},

  month        = {11}

}

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Magnetic small-angle neutron scattering
journal, March 2019

Mühlbauer, Sebastian; Honecker, Dirk; Périgo, Élio A.
Reviews of Modern Physics, Vol. 91, Issue 1
DOI: 10.1103/revmodphys.91.015004

Time Reversal Symmetry Breaking Superconductors: Sr2RuO4 and Beyond
journal, May 2019

Wysokiński, Karol Izydor
Condensed Matter, Vol. 4, Issue 2
DOI: 10.3390/condmat4020047

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Title: Anisotropy and multiband superconductivity in Sr 2 RuO 4 determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in Sr 2 RuO 4 ]

Abstract

Citation Formats

Polarization-analyzed small-angle neutron scattering. I. Polarized data reduction using Pol-Corr journal, May 2012

Spin-Orbital Entanglement and the Breakdown of Singlets and Triplets in Sr 2 RuO 4 Revealed by Spin- and Angle-Resolved Photoemission Spectroscopy journal, March 2014

Upper Limit for the Critical Field in Hard Superconductors journal, September 1962

Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa 2 Cu 3 O 7 journal, March 2009

Identifying detrimental effects for multiorbital superconductivity: Application to Sr 2 RuO 4 journal, September 2016

D33—a third small-angle neutron scattering instrument at the Institut Laue Langevin journal, January 2008

Strong Increase of Tc of Sr2RuO4 Under Both Tensile and Compressive Strain journal, April 2014

Measuring the penetration depth anisotropy in Mg B 2 using small-angle neutron scattering journal, January 2006

Theory of Transport Properties in the p -Wave Superconducting State of Sr 2 RuO 4 –A Microscopic Determination of the Gap Structure– journal, June 2005

Theory of superconductivity in a three-orbital model of Sr 2 RuO 4 journal, October 2013

Angular dependence of the upper critical field of Sr 2 RuO 4 journal, November 2009

Reconstruction from Small-Angle Neutron Scattering Measurements of the Real Space Magnetic Field Distribution in the Mixed State of Sr 2 RuO 4 journal, June 2000

Nonlocal Effects on the Magnetic Penetration Depth in d -Wave Superconductors journal, July 1997

Erratum: correction: Observation of a square flux-line lattice in the unconventional superconductor Sr2RuO4 journal, April 2000

High Resolution Polar Kerr Effect Measurements of Sr 2 RuO 4 : Evidence for Broken Time-Reversal Symmetry in the Superconducting State journal, October 2006

Chiral superconductors journal, April 2016

Vortex Lattice Studies in CeCoIn 5 with H ⊥ c journal, February 2012

Pauli Paramagnetic Effects on Vortices in Superconducting TmNi 2 B 2 C journal, October 2007

Gap Structure of the Spin-Triplet Superconductor S r 2 R u O 4 Determined from the Field-Orientation Dependence of the Specific Heat journal, January 2004

Sharp magnetization jump at the first-order superconducting transition in Sr 2 RuO 4 journal, December 2014

Interplay between effective mass anisotropy and Pauli paramagnetic effects in a multiband superconductor: Application to Sr 2 RuO 4 journal, August 2015

Field structure of vortex lattices in uniaxial superconductors journal, June 1989

Eilenberger and London theories for transverse components of flux line lattice form factors in uniaxial superconductors journal, October 2014

Interband Proximity Effect and Nodes of Superconducting Gap in Sr 2 RuO 4 journal, July 2001

Hidden Quasi-One-Dimensional Superconductivity in Sr 2 RuO 4 journal, September 2010

Even odder after twenty-three years: the superconducting order parameter puzzle of Sr2RuO4 journal, July 2017

A note on the upper critical field of Sr 2 RuO 4 under strain journal, April 2017

Vortex lattices in type-II superconductors studied by small-angle neutron scattering journal, October 2011

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

Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2 H - NbSe 2 journal, January 1994

Vortex structures, penetration depth and pairing in iron-based superconductors studied by small-angle neutron scattering journal, September 2011

Superconducting Vortices in CeCoIn5: Toward the Pauli-Limiting Field journal, January 2008

Gap in KFe 2 As 2 studied by small-angle neutron scattering observations of the magnetic vortex lattice journal, July 2011

Determination of the Superconducting Gap Structure in All Bands of the Spin-Triplet Superconductor Sr 2 RuO 4 journal, May 2004

The superconducting penetration depth from the semiclassical model journal, January 1993

Temperature Dependence of the Penetration Depth in Sr 2 RuO 4 : Evidence for Nodes in the Gap Function journal, November 2000

Simultaneous evidence for Pauli paramagnetic effects and multiband superconductivity in KFe 2 As 2 by small-angle neutron scattering studies of the vortex lattice journal, March 2016

Observation of a square flux-line lattice in the unconventional superconductor Sr2RuO4 journal, November 1998

Anomalous temperature dependence of the magnetic field penetration depth in superconducting UBe13 journal, June 1986

Paramagnetic effects in vortex lattice field distribution in strongly type-II superconductors journal, September 2010

Nodal gap structure and order parameter symmetry of the unconventional superconductor UPt 3 journal, February 2015

Flux-line lattice anisotropy in V3Si: Observation and interpretation journal, December 1985

Vortex states in superconductors with strong Pauli-paramagnetic effect journal, August 2007

Observations of Pauli paramagnetic effects on the flux line lattice in CeCoIn 5 journal, February 2010

Evaluation of Spin-Triplet Superconductivity in Sr 2 RuO 4 journal, January 2012

Ultrasound Attenuation in Sr2RuO4: An Angle-Resolved Study of the Superconducting Gap Function journal, June 2001

Quasi-two-dimensional Fermi liquid properties of the unconventional superconductor Sr 2 RuO 4 journal, November 2003

Dynamical Superconducting Order Parameter Domains in Sr2RuO4 journal, November 2006

Vortex lattice structures in uniaxial superconductors journal, August 1988

Pairing symmetry and dominant band in Sr 2 RuO 4 journal, June 2014

Leggett modes and multiband superconductivity in Sr 2 RuO 4 journal, August 2016

Magnetic field dependence of low-temperature specific heat in Sr 2 RuO 4 journal, May 2008

Anisotropy of the Superconducting State in Sr 2 RuO 4 journal, August 2013

Odd-Frequency Superconductivity in Sr 2 RuO 4 Measured by Kerr Rotation journal, August 2017

Fermi Surface of Sr 2 RuO 4 : Spin-Orbit and Anisotropic Coulomb Interaction Effects journal, March 2016

Scientific Reviews: Neutron Polarization Analysis Corrections Made Easy journal, July 2006

Realignment of the flux-line lattice by a change in the symmetry of superconductivity in UPt3 journal, July 2000

Observation of Half-Height Magnetization Steps in Sr2RuO4 journal, January 2011

Time-reversal symmetry-breaking superconductivity in Sr2RuO4 journal, August 1998

Effects of Two-Band Superconductivity on the Flux-Line Lattice in Magnesium Diboride journal, July 2003

Spin-triplet superconductivity in Sr2RuO4 identified by 17O Knight shift journal, December 1998

Odd-Parity Superconductivity in Sr2RuO4 journal, November 2004

Transverse-field components of the flux-line lattice in the anisotropic superconductor YBa 2 Cu 3 O 7 − δ journal, September 2001

Chiral p-wave order in Sr 2 RuO 4 journal, March 2012

First-Order Superconducting Transition of Sr 2 RuO 4 journal, February 2013

Pauli paramagnetic effects on mixed-state properties in a strongly anisotropic superconductor: Application to Sr 2 RuO 4 journal, April 2015

Strong peak in T c of Sr 2 RuO 4 under uniaxial pressure journal, January 2017

Probing the anisotropic vortex lattice in the Fe-based superconductor KFe 2 As 2 using small-angle neutron scattering journal, October 2013

Superconducting Double Transition and the Upper Critical Field Limit of Sr 2 RuO 4 in Parallel Magnetic Fields journal, December 2002

Unusual temperature dependence of the in-plane critical field in Sr 2 RuO 4 journal, March 2009

Evidence from tunneling spectroscopy for a quasi-one-dimensional origin of superconductivity in Sr 2 RuO 4 journal, October 2013

Changes in the Superconducting State of Sr 2 RuO 4 under Magnetic Fields Probed by Specific Heat journal, February 2000

Vertical Line Nodes in the Superconducting Gap Structure of Sr 2 RuO 4 journal, March 2017

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

Topological superconductors: a review journal, May 2017

Flux-line lattice in uniaxial superconductors at low magnetic inductions journal, August 1992

Exotic Cooper pairing in multiorbital models of Sr 2 RuO 4 journal, October 2019

Title: Anisotropy and multiband superconductivity in ${Sr}_{2} {RuO}_{4}$ determined by small-angle neutron scattering studies of the vortex lattice [Anisotropy and multiband superconductivity in ${Sr}_{2} {RuO}_{4}$ ]

Polarization-analyzed small-angle neutron scattering. I. Polarized data reduction using Pol-Corr
journal, May 2012

Spin-Orbital Entanglement and the Breakdown of Singlets and Triplets in ${Sr}_{2} {RuO}_{4}$ Revealed by Spin- and Angle-Resolved Photoemission Spectroscopy
journal, March 2014

Upper Limit for the Critical Field in Hard Superconductors
journal, September 1962

Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free ${YBa}_{2} {Cu}_{3} O_{7}$
journal, March 2009

Identifying detrimental effects for multiorbital superconductivity: Application to ${Sr}_{2} {RuO}_{4}$
journal, September 2016

D33—a third small-angle neutron scattering instrument at the Institut Laue Langevin
journal, January 2008

Strong Increase of Tc of Sr2RuO4 Under Both Tensile and Compressive Strain
journal, April 2014

Measuring the penetration depth anisotropy in $Mg B_{2}$ using small-angle neutron scattering
journal, January 2006

Theory of Transport Properties in the p -Wave Superconducting State of Sr ₂ RuO ₄ –A Microscopic Determination of the Gap Structure–
journal, June 2005

Theory of superconductivity in a three-orbital model of Sr ₂ RuO ₄
journal, October 2013

Angular dependence of the upper critical field of ${Sr}_{2} {RuO}_{4}$
journal, November 2009

Reconstruction from Small-Angle Neutron Scattering Measurements of the Real Space Magnetic Field Distribution in the Mixed State of ${Sr}_{2} {RuO}_{4}$
journal, June 2000

Nonlocal Effects on the Magnetic Penetration Depth in d -Wave Superconductors
journal, July 1997

Erratum: correction: Observation of a square flux-line lattice in the unconventional superconductor Sr2RuO4
journal, April 2000

High Resolution Polar Kerr Effect Measurements of ${Sr}_{2} {RuO}_{4}$ : Evidence for Broken Time-Reversal Symmetry in the Superconducting State
journal, October 2006

Chiral superconductors
journal, April 2016

Vortex Lattice Studies in ${CeCoIn}_{5}$ with $H ⊥ c$
journal, February 2012

Pauli Paramagnetic Effects on Vortices in Superconducting ${TmNi}_{2} B_{2} C$
journal, October 2007

Gap Structure of the Spin-Triplet Superconductor ${S r}_{2} {R u O}_{4}$ Determined from the Field-Orientation Dependence of the Specific Heat
journal, January 2004

Sharp magnetization jump at the first-order superconducting transition in ${Sr}_{2} {RuO}_{4}$
journal, December 2014

Interplay between effective mass anisotropy and Pauli paramagnetic effects in a multiband superconductor: Application to ${Sr}_{2} {RuO}_{4}$
journal, August 2015

Field structure of vortex lattices in uniaxial superconductors
journal, June 1989

Eilenberger and London theories for transverse components of flux line lattice form factors in uniaxial superconductors
journal, October 2014

Interband Proximity Effect and Nodes of Superconducting Gap in ${Sr}_{2} {RuO}_{4}$
journal, July 2001

Hidden Quasi-One-Dimensional Superconductivity in ${Sr}_{2} {RuO}_{4}$
journal, September 2010

Even odder after twenty-three years: the superconducting order parameter puzzle of Sr2RuO4
journal, July 2017

A note on the upper critical field of Sr ₂ RuO ₄ under strain
journal, April 2017

Vortex lattices in type-II superconductors studied by small-angle neutron scattering
journal, October 2011

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

Small angle neutron scattering study of the magnetic flux-line lattice in single crystal 2 H - ${NbSe}_{2}$
journal, January 1994

Vortex structures, penetration depth and pairing in iron-based superconductors studied by small-angle neutron scattering
journal, September 2011

Superconducting Vortices in CeCoIn5: Toward the Pauli-Limiting Field
journal, January 2008

Gap in KFe $_{2}$ As $_{2}$ studied by small-angle neutron scattering observations of the magnetic vortex lattice
journal, July 2011

Determination of the Superconducting Gap Structure in All Bands of the Spin-Triplet Superconductor Sr ₂ RuO ₄
journal, May 2004

The superconducting penetration depth from the semiclassical model
journal, January 1993

Temperature Dependence of the Penetration Depth in ${Sr}_{2} {RuO}_{4}$ : Evidence for Nodes in the Gap Function
journal, November 2000

Simultaneous evidence for Pauli paramagnetic effects and multiband superconductivity in ${KFe}_{2} {As}_{2}$ by small-angle neutron scattering studies of the vortex lattice
journal, March 2016

Observation of a square flux-line lattice in the unconventional superconductor Sr2RuO4
journal, November 1998

Anomalous temperature dependence of the magnetic field penetration depth in superconducting UBe13
journal, June 1986

Paramagnetic effects in vortex lattice field distribution in strongly type-II superconductors
journal, September 2010

Nodal gap structure and order parameter symmetry of the unconventional superconductor UPt ₃
journal, February 2015

Flux-line lattice anisotropy in V3Si: Observation and interpretation
journal, December 1985

Vortex states in superconductors with strong Pauli-paramagnetic effect
journal, August 2007

Observations of Pauli paramagnetic effects on the flux line lattice in CeCoIn ₅
journal, February 2010

Evaluation of Spin-Triplet Superconductivity in Sr ₂ RuO ₄
journal, January 2012

Ultrasound Attenuation in Sr2RuO4: An Angle-Resolved Study of the Superconducting Gap Function
journal, June 2001

Quasi-two-dimensional Fermi liquid properties of the unconventional superconductor Sr ₂ RuO ₄
journal, November 2003

Dynamical Superconducting Order Parameter Domains in Sr2RuO4
journal, November 2006

Vortex lattice structures in uniaxial superconductors
journal, August 1988

Pairing symmetry and dominant band in ${Sr}_{2}$ ${RuO}_{4}$
journal, June 2014

Leggett modes and multiband superconductivity in ${Sr}_{2} {RuO}_{4}$
journal, August 2016

Magnetic field dependence of low-temperature specific heat in ${Sr}_{2} {RuO}_{4}$
journal, May 2008

Anisotropy of the Superconducting State in ${Sr}_{2} {RuO}_{4}$
journal, August 2013

Odd-Frequency Superconductivity in ${Sr}_{2} {RuO}_{4}$ Measured by Kerr Rotation
journal, August 2017

Fermi Surface of ${Sr}_{2} {RuO}_{4}$ : Spin-Orbit and Anisotropic Coulomb Interaction Effects
journal, March 2016

Scientific Reviews: Neutron Polarization Analysis Corrections Made Easy
journal, July 2006

Realignment of the flux-line lattice by a change in the symmetry of superconductivity in UPt3
journal, July 2000

Observation of Half-Height Magnetization Steps in Sr2RuO4
journal, January 2011

Time-reversal symmetry-breaking superconductivity in Sr2RuO4
journal, August 1998

Effects of Two-Band Superconductivity on the Flux-Line Lattice in Magnesium Diboride
journal, July 2003

Spin-triplet superconductivity in Sr2RuO4 identified by 17O Knight shift
journal, December 1998

Odd-Parity Superconductivity in Sr2RuO4
journal, November 2004

Transverse-field components of the flux-line lattice in the anisotropic superconductor ${YBa}_{2} {Cu}_{3} O_{7 - δ}$
journal, September 2001

Chiral p-wave order in Sr ₂ RuO ₄
journal, March 2012

First-Order Superconducting Transition of ${Sr}_{2} {RuO}_{4}$
journal, February 2013

Pauli paramagnetic effects on mixed-state properties in a strongly anisotropic superconductor: Application to ${Sr}_{2} {RuO}_{4}$
journal, April 2015

Strong peak in T _c of Sr ₂ RuO ₄ under uniaxial pressure
journal, January 2017

Probing the anisotropic vortex lattice in the Fe-based superconductor KFe $_{2}$ As $_{2}$ using small-angle neutron scattering
journal, October 2013

Superconducting Double Transition and the Upper Critical Field Limit of Sr ₂ RuO ₄ in Parallel Magnetic Fields
journal, December 2002

Unusual temperature dependence of the in-plane critical field in Sr ₂ RuO ₄
journal, March 2009

Evidence from tunneling spectroscopy for a quasi-one-dimensional origin of superconductivity in Sr $_{2}$ RuO $_{4}$
journal, October 2013

Changes in the Superconducting State of Sr ₂ RuO ₄ under Magnetic Fields Probed by Specific Heat
journal, February 2000

Vertical Line Nodes in the Superconducting Gap Structure of ${Sr}_{2} {RuO}_{4}$
journal, March 2017

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

Topological superconductors: a review
journal, May 2017

Flux-line lattice in uniaxial superconductors at low magnetic inductions
journal, August 1992

Exotic Cooper pairing in multiorbital models of ${Sr}_{2} {RuO}_{4}$
journal, October 2019

Magnetic small-angle neutron scattering
journal, March 2019

Time Reversal Symmetry Breaking Superconductors: Sr2RuO4 and Beyond
journal, May 2019