Superconducting pairing mechanism in CeCoIn5 revisited
Abstract
Spectroscopic-imaging scanning-tunneling microscopy (SI-STM) measurements have previously been applied to the study of the heavy-fermion system CeCoIn5 to examine the superconducting gap structure and band dispersions via quasiparticle intereference. Here we directly measure the dispersing electron bands with angle-resolved-photoelectron spectroscopy (ARPES) and compare with first principles electronic structure calculations. By auto-correllating the ARPES-resolved bands with themselves we can measure the potential q-vectors and discern exactly which bands the STM is measuring. We find that the STM results are dominated by scattering associated with a cloverleaf shaped band centered at the zone corners. This same band is also a viable candidate to host the superconducting gap. Overall, the electronic structure calculations indicate that this region of the Fermi surface involves significant contributions from the Co d-electrons, an indication that the superconductivity in these materials is more 3-dimensional than that found in the related unconventional superconductors, the cuprates and the pnictides.
- Authors:
-
[1];
[2];
[1]
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Northeastern Univ., Boston, MA (United States)
- Northeastern Univ., Boston, MA (United States); Tampere Univ. (Finland). Computational Physics Lab.
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1716782
- Report Number(s):
- BNL-220630-2020-JAAM
Journal ID: ISSN 2469-9950; TRN: US2204774
- Grant/Contract Number:
- SC0012704; FG02-07ER46352; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 102; Journal Issue: 20; 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; Electronic structure; Fermi surface; Pairing mechanisms; Superconductivity
Citation Formats
Reber, T. J., Rameau, J. D., Petrovic, C., Hafiz, Hasnain, Lindroos, M., Bansil, A., and Johnson, P. D. Superconducting pairing mechanism in CeCoIn5 revisited. United States: N. p., 2020.
Web. doi:10.1103/physrevb.102.205112.
Reber, T. J., Rameau, J. D., Petrovic, C., Hafiz, Hasnain, Lindroos, M., Bansil, A., & Johnson, P. D. Superconducting pairing mechanism in CeCoIn5 revisited. United States. https://doi.org/10.1103/physrevb.102.205112
Reber, T. J., Rameau, J. D., Petrovic, C., Hafiz, Hasnain, Lindroos, M., Bansil, A., and Johnson, P. D. Wed .
"Superconducting pairing mechanism in CeCoIn5 revisited". United States. https://doi.org/10.1103/physrevb.102.205112. https://www.osti.gov/servlets/purl/1716782.
@article{osti_1716782,
title = {Superconducting pairing mechanism in CeCoIn5 revisited},
author = {Reber, T. J. and Rameau, J. D. and Petrovic, C. and Hafiz, Hasnain and Lindroos, M. and Bansil, A. and Johnson, P. D.},
abstractNote = {Spectroscopic-imaging scanning-tunneling microscopy (SI-STM) measurements have previously been applied to the study of the heavy-fermion system CeCoIn5 to examine the superconducting gap structure and band dispersions via quasiparticle intereference. Here we directly measure the dispersing electron bands with angle-resolved-photoelectron spectroscopy (ARPES) and compare with first principles electronic structure calculations. By auto-correllating the ARPES-resolved bands with themselves we can measure the potential q-vectors and discern exactly which bands the STM is measuring. We find that the STM results are dominated by scattering associated with a cloverleaf shaped band centered at the zone corners. This same band is also a viable candidate to host the superconducting gap. Overall, the electronic structure calculations indicate that this region of the Fermi surface involves significant contributions from the Co d-electrons, an indication that the superconductivity in these materials is more 3-dimensional than that found in the related unconventional superconductors, the cuprates and the pnictides.},
doi = {10.1103/physrevb.102.205112},
journal = {Physical Review B},
number = 20,
volume = 102,
place = {United States},
year = {Wed Nov 11 00:00:00 EST 2020},
month = {Wed Nov 11 00:00:00 EST 2020}
}
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Works referenced in this record:
Band-dependent emergence of heavy quasiparticles in CeCoIn
journal, July 2013
- Koitzsch, A.; Kim, T. K.; Treske, U.
- Physical Review B, Vol. 88, Issue 3
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
Unconventional superconductivity in heavy-fermion compounds
journal, July 2015
- White, B. D.; Thompson, J. D.; Maple, M. B.
- Physica C: Superconductivity and its Applications, Vol. 514
Relativistic Band-Structure Calculations for CeTIn 5 (T = Ir and Co) and Analysis of the Energy Bands by Using Tight-Binding Method
journal, April 2003
- Maehira, Takahiro; Hotta, Takashi; Ueda, Kazuo
- Journal of the Physical Society of Japan, Vol. 72, Issue 4
Hybridization effects in observed by angle-resolved photoemission
journal, April 2008
- Koitzsch, A.; Borisenko, S. V.; Inosov, D.
- Physical Review B, Vol. 77, Issue 15
Visualizing heavy fermions emerging in a quantum critical Kondo lattice
journal, June 2012
- Aynajian, Pegor; da Silva Neto, Eduardo H.; Gyenis, András
- Nature, Vol. 486, Issue 7402
Probing bulk states of correlated electron systems by high-resolution resonance photoemission
journal, January 2000
- Sekiyama, A.; Iwasaki, T.; Matsuda, K.
- Nature, Vol. 403, Issue 6768
Full-potential, linearized augmented plane wave programs for crystalline systems
journal, June 1990
- Blaha, P.; Schwarz, K.; Sorantin, P.
- Computer Physics Communications, Vol. 59, Issue 2
Heavy-fermion systems
journal, October 1984
- Stewart, G. R.
- Reviews of Modern Physics, Vol. 56, Issue 4
Growth, Characterization and Fermi Surface of Heavy Fermion CeCoIn 5 Superconductor
journal, May 2011
- Jia, Xiao-Wen; Liu, Yan; Yu, Li
- Chinese Physics Letters, Vol. 28, Issue 5
Fermi surface evolution and -wave superconductivity in : Analysis based on LDA+DMFT method
journal, September 2014
- Nomoto, Takuya; Ikeda, Hiroaki
- Physical Review B, Vol. 90, Issue 12
Direct evidence for a magnetic f-electron-mediated pairing mechanism of heavy-fermion superconductivity in CeCoIn5
journal, July 2014
- Van Dyke, J. S.; Massee, F.; Allan, M. P.
- Proceedings of the National Academy of Sciences, Vol. 111, Issue 32
Electronic structure of from angle-resolved photoemission spectroscopy
journal, February 2009
- Koitzsch, A.; Opahle, I.; Elgazzar, S.
- Physical Review B, Vol. 79, Issue 7
On-board sample cleaver
journal, July 2007
- Månsson, Martin; Claesson, Thomas; Karlsson, Ulf O.
- Review of Scientific Instruments, Vol. 78, Issue 7
Effects of gradient corrections on electronic structure in metals
journal, September 1990
- Barbiellini, B.; Moroni, E. G.; Jarlborg, T.
- Journal of Physics: Condensed Matter, Vol. 2, Issue 37
Imaging Cooper pairing of heavy fermions in CeCoIn5
journal, July 2013
- Allan, M. P.; Massee, F.; Morr, D. K.
- Nature Physics, Vol. 9, Issue 8
Direct observation of how the heavy-fermion state develops in
journal, July 2017
- Chen, Q. Y.; Xu, D. F.; Niu, X. H.
- Physical Review B, Vol. 96, Issue 4
Modeling the Localized-to-Itinerant Electronic Transition in the Heavy Fermion System CeIrIn5
journal, December 2007
- Shim, J. H.; Haule, K.; Kotliar, G.
- Science, Vol. 318, Issue 5856
Visualizing nodal heavy fermion superconductivity in CeCoIn5
journal, July 2013
- Zhou, Brian B.; Misra, Shashank; da Silva Neto, Eduardo H.
- Nature Physics, Vol. 9, Issue 8
Heavy-fermion superconductivity in CeCoIn 5 at 2.3 K
journal, April 2001
- Petrovic, C.; Pagliuso, P. G.; Hundley, M. F.
- Journal of Physics: Condensed Matter, Vol. 13, Issue 17
Angle-resolved photoemission studies of the cuprate superconductors
journal, April 2003
- Damascelli, Andrea; Hussain, Zahid; Shen, Zhi-Xun
- Reviews of Modern Physics, Vol. 75, Issue 2
Temperature-Independent Fermi Surface in the Kondo Lattice
journal, March 2015
- Kummer, K.; Patil, S.; Chikina, A.
- Physical Review X, Vol. 5, Issue 1