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Title: Experimental observation of electron-phonon coupling enhancement in Sn nanowires caused by phonon confinement effects

Abstract

Reducing the size of a superconductor below its characteristic length scales can either enhance or suppress its critical temperature (Tc). Depending on the bulk value of the electron-phonon coupling strength, electronic and phonon confinement effects will play different roles in the modification of Tc. Experimentally disentangling each contribution has remained a challenge. We have measured both the phonon density of states and Tc of Sn nanowires with diameters of 18, 35, and 100 nm in order to quantify the effects of phonon confinement on superconductivity. Furthermore, we observe a shift of the phonon frequency towards the low-energy region and an increase in the electron-phonon coupling constant that can account for the measured increase in Tc.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [3];  [1];  [1];  [4];  [5];  [6];  [5];  [5];  [7];  [7];  [7];  [7];  [2];  [1] more »;  [1];  [1];  [1] « less
  1. KU Leuven, Leuven (Belgium)
  2. Univ. catholique de Louvain, Louvain-la-Neuve (Belgium)
  3. KU Leuven, Leuven (Belgium); Univ. Autonoma de Barcelona, Cerdanyola del Valles (Spain)
  4. Univ. catholique de Louvain, Louvain-la-Neuve (Belgium); Univ. of Bucharest, Bucharest-Magurele (Romania)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. Argonne National Lab. (ANL), Argonne, IL (United States); Miami Univ., Oxford, OH (United States)
  7. Univ. Antwerpen, Antwerpen (Belgium)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1497389
Alternate Identifier(s):
OSTI ID: 1546323
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 99; Journal Issue: 6; 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

Lozano, D. P., Couet, S., Petermann, C., Hamoir, G., Jochum, J. K., Picot, T., Menéndez, E., Houben, K., Joly, V., Antohe, V. A., Hu, Michael Y., Leu, B. M., Alatas, A., Said, Ayman H., Roelants, S., Partoens, B., Milošević, M. V., Peeters, F. M., Piraux, L., Van de Vondel, J., Vantomme, A., Temst, K., and Van Bael, M. J. Experimental observation of electron-phonon coupling enhancement in Sn nanowires caused by phonon confinement effects. United States: N. p., 2019. Web. https://doi.org/10.1103/PhysRevB.99.064512.
Lozano, D. P., Couet, S., Petermann, C., Hamoir, G., Jochum, J. K., Picot, T., Menéndez, E., Houben, K., Joly, V., Antohe, V. A., Hu, Michael Y., Leu, B. M., Alatas, A., Said, Ayman H., Roelants, S., Partoens, B., Milošević, M. V., Peeters, F. M., Piraux, L., Van de Vondel, J., Vantomme, A., Temst, K., & Van Bael, M. J. Experimental observation of electron-phonon coupling enhancement in Sn nanowires caused by phonon confinement effects. United States. https://doi.org/10.1103/PhysRevB.99.064512
Lozano, D. P., Couet, S., Petermann, C., Hamoir, G., Jochum, J. K., Picot, T., Menéndez, E., Houben, K., Joly, V., Antohe, V. A., Hu, Michael Y., Leu, B. M., Alatas, A., Said, Ayman H., Roelants, S., Partoens, B., Milošević, M. V., Peeters, F. M., Piraux, L., Van de Vondel, J., Vantomme, A., Temst, K., and Van Bael, M. J. Thu . "Experimental observation of electron-phonon coupling enhancement in Sn nanowires caused by phonon confinement effects". United States. https://doi.org/10.1103/PhysRevB.99.064512. https://www.osti.gov/servlets/purl/1497389.
@article{osti_1497389,
title = {Experimental observation of electron-phonon coupling enhancement in Sn nanowires caused by phonon confinement effects},
author = {Lozano, D. P. and Couet, S. and Petermann, C. and Hamoir, G. and Jochum, J. K. and Picot, T. and Menéndez, E. and Houben, K. and Joly, V. and Antohe, V. A. and Hu, Michael Y. and Leu, B. M. and Alatas, A. and Said, Ayman H. and Roelants, S. and Partoens, B. and Milošević, M. V. and Peeters, F. M. and Piraux, L. and Van de Vondel, J. and Vantomme, A. and Temst, K. and Van Bael, M. J.},
abstractNote = {Reducing the size of a superconductor below its characteristic length scales can either enhance or suppress its critical temperature (Tc). Depending on the bulk value of the electron-phonon coupling strength, electronic and phonon confinement effects will play different roles in the modification of Tc. Experimentally disentangling each contribution has remained a challenge. We have measured both the phonon density of states and Tc of Sn nanowires with diameters of 18, 35, and 100 nm in order to quantify the effects of phonon confinement on superconductivity. Furthermore, we observe a shift of the phonon frequency towards the low-energy region and an increase in the electron-phonon coupling constant that can account for the measured increase in Tc.},
doi = {10.1103/PhysRevB.99.064512},
journal = {Physical Review B},
number = 6,
volume = 99,
place = {United States},
year = {2019},
month = {2}
}

Works referenced in this record:

Evidence for Macroscopic Quantum Tunneling of Phase Slips in Long One-Dimensional Superconducting Al Wires
journal, July 2006


Transition temperature of strong-coupled superconductors reanalyzed
journal, August 1975


Dissipation in quasi-one-dimensional superconducting single-crystal Sn nanowires
journal, March 2005


Enhanced Superconductivity in Layered Metallic Films
journal, October 1968


Synthesis and characterization of superconducting single-crystal Sn nanowires
journal, August 2003

  • Tian, Mingliang; Wang, Jinguo; Snyder, Joseph
  • Applied Physics Letters, Vol. 83, Issue 8
  • DOI: 10.1063/1.1601692

Vibrational dynamics of the host framework in Sn clathrates
journal, September 2014


Observation of shell effects in superconducting nanoparticles of Sn
journal, May 2010

  • Bose, Sangita; García-García, Antonio M.; Ugeda, Miguel M.
  • Nature Materials, Vol. 9, Issue 7
  • DOI: 10.1038/nmat2768

McMillan's equation and the Tc of superconductors
journal, April 1972


Template-assisted fabrication of tin and antimony based nanowire arrays
journal, October 2012


Effect of sample topology on the critical fields of mesoscopic superconductors
journal, January 1995

  • Moshchalkov, V. V.; Gielen, L.; Strunk, C.
  • Nature, Vol. 373, Issue 6512
  • DOI: 10.1038/373319a0

Enhancement of Superconductivity in Metal Films
journal, September 1966


Superconductivity and Lattice Dynamics of White Tin
journal, June 1971


Nuclear resonant inelastic absorption of synchrotron radiation in an anisotropic single crystal
journal, October 1998


Superconductivity in zero-dimensional indium nanoparticles
journal, May 2007

  • Wu, F. -Y.; Yang, C. C.; Wu, C. -M.
  • Journal of Applied Physics, Vol. 101, Issue 9
  • DOI: 10.1063/1.2711407

Theory of Superconductivity
journal, December 1957


Dramatic enhancement of superconductivity in single-crystalline nanowire arrays of Sn
journal, September 2016

  • Zhang, Ying; Wong, Chi Ho; Shen, Junying
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep32963

Phonon limited superconducting correlations in metallic nanograins
journal, November 2015

  • Croitoru, M. D.; Shanenko, A. A.; Vagov, A.
  • Scientific Reports, Vol. 5, Issue 1
  • DOI: 10.1038/srep16515

Simultaneous structure and size–strain refinement by the Rietveld method
journal, August 1990


Fabrication and properties of arrays of superconducting nanowires
journal, March 1999

  • Dubois, S.; Michel, A.; Eymery, J. P.
  • Journal of Materials Research, Vol. 14, Issue 3
  • DOI: 10.1557/JMR.1999.0091

A review of finite size effects in quasi-zero dimensional superconductors
journal, November 2014


Lattice dynamics in Sn nanoislands and cluster-assembled films
journal, April 2017


Superconducting transition in Nb nanowires fabricated using focused ion beam
journal, October 2009


Atomic dynamics of tin nanoparticles embedded into porous glass
journal, March 2012

  • Parshin, P. P.; Zemlyanov, M. G.; Panova, G. Kh.
  • Journal of Experimental and Theoretical Physics, Vol. 114, Issue 3
  • DOI: 10.1134/S1063776112010141

Suppression of Superconductivity in Zinc Nanowires by Bulk Superconductors
journal, August 2005


Phonon spectroscopy in a Bi2Te3 nanowire array
journal, January 2013

  • Bessas, Dimitrios; Töllner, William; Aabdin, Zainul
  • Nanoscale, Vol. 5, Issue 21
  • DOI: 10.1039/c3nr02918b

Vibrational spectroscopy of thin films and nanostructures by inelastic nuclear resonant scattering
journal, August 2001


Dependence of superconducting properties on the size and shape of a nanoscale superconductor: From nanowire to film
journal, July 2007


Carbon Nanotubes Encapsulating Superconducting Single-Crystalline Tin Nanowires
journal, June 2006

  • Jankovič, Luboš; Gournis, Dimitrios; Trikalitis, Pantelis N.
  • Nano Letters, Vol. 6, Issue 6
  • DOI: 10.1021/nl0602387

Strong effect of electron-phonon interaction on the lattice thermal conductivity in 3C-SiC
journal, August 2017


Electron–phonon coupling in hybrid lead halide perovskites
journal, May 2016

  • Wright, Adam D.; Verdi, Carla; Milot, Rebecca L.
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms11755

Competing effects of surface phonon softening and quantum size effects on the superconducting properties of nanostructured Pb
journal, April 2009


Upper critical field in nanostructured Nb: Competing effects of the reduction in density of states and the mean free path
journal, December 2006


Atomic dynamics of lead embedded into nanoporous glass
journal, January 2010

  • Parshin, P. P.; Zemlyanov, M. G.; Panov, G. Kh.
  • Journal of Experimental and Theoretical Physics, Vol. 111, Issue 6
  • DOI: 10.1134/S1063776110120125

Size and dimensionality effects in superconducting Mo thin films
journal, June 2011


Structural, elastic, vibrational and electronic properties of amorphous Al 2 O 3 from ab initio calculations
journal, November 2011


Nuclear resonant spectroscopy
journal, January 2004


Size-dependent enhancement of superconductivity in Al and Sn nanowires: Shape-resonance effect
journal, August 2006


Phonon effect on enhancement and reduction of the superconducting transition temperature of a small particle and amorphous thin films
journal, March 1993

  • Tamura, A.
  • Zeitschrift f�r Physik D Atoms, Molecules and Clusters, Vol. 26, Issue S1
  • DOI: 10.1007/BF01425677

Phonons in Iron: From the Bulk to an Epitaxial Monolayer
journal, October 2007