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Title: Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor

Abstract

High-entropy alloys are made from random mixtures of principal elements on simple lattices, stabilized by a high mixing entropy. The recently discovered body-centered cubic (BCC) Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor appears to display properties of both simple crystalline intermetallics and amorphous materials; e.g., it has a well-defined superconducting transition along with an exceptional robustness against disorder. Here we show that the valence electron count dependence of the superconducting transition temperature in the high-entropy alloy falls between those of analogous simple solid solutions and amorphous materials and test the effect of alloy complexity on the superconductivity. We propose high-entropy alloys as excellent intermediate systems for studying superconductivity as it evolves between crystalline and amorphous materials.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Gordon and Betty Moore Foundation; National Science Centre (Poland)
OSTI Identifier:
1330724
Alternate Identifier(s):
OSTI ID: 1372433
Report Number(s):
BNL-113907-2017-JA
Journal ID: ISSN 0027-8424; /pnas/113/46/E7144.atom
Grant/Contract Number:  
AC02-98CH10886; SC0012704; DEC-2012/07/E/ST3/00584; GBMF-4412
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; High-entropy Alloys; Superconductivity; Disordered Metals

Citation Formats

von Rohr, Fabian, Winiarski, Michał J., Tao, Jing, Klimczuk, Tomasz, and Cava, Robert Joseph. Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor. United States: N. p., 2016. Web. doi:10.1073/pnas.1615926113.
von Rohr, Fabian, Winiarski, Michał J., Tao, Jing, Klimczuk, Tomasz, & Cava, Robert Joseph. Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor. United States. doi:10.1073/pnas.1615926113.
von Rohr, Fabian, Winiarski, Michał J., Tao, Jing, Klimczuk, Tomasz, and Cava, Robert Joseph. Tue . "Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor". United States. doi:10.1073/pnas.1615926113.
@article{osti_1330724,
title = {Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor},
author = {von Rohr, Fabian and Winiarski, Michał J. and Tao, Jing and Klimczuk, Tomasz and Cava, Robert Joseph},
abstractNote = {High-entropy alloys are made from random mixtures of principal elements on simple lattices, stabilized by a high mixing entropy. The recently discovered body-centered cubic (BCC) Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor appears to display properties of both simple crystalline intermetallics and amorphous materials; e.g., it has a well-defined superconducting transition along with an exceptional robustness against disorder. Here we show that the valence electron count dependence of the superconducting transition temperature in the high-entropy alloy falls between those of analogous simple solid solutions and amorphous materials and test the effect of alloy complexity on the superconductivity. We propose high-entropy alloys as excellent intermediate systems for studying superconductivity as it evolves between crystalline and amorphous materials.},
doi = {10.1073/pnas.1615926113},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1073/pnas.1615926113

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Cited by: 1 work
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Works referenced in this record:

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


Empirical Relation between Superconductivity and the Number of Valence Electrons per Atom
journal, January 1955


Emergence of superconductivity in BaNi 2 (Ge 1 x P x ) 2 at a structural instability
journal, September 2012


Alloy Design Strategies and Future Trends in High-Entropy Alloys
journal, October 2013


Superconductivity and Chemistry
journal, September 1997

  • Simon, Arndt
  • Angewandte Chemie International Edition in English, Vol. 36, Issue 17
  • DOI: 10.1002/anie.199717881

High-Strength and High-Ductility Nanostructured and Amorphous Metallic Materials
journal, June 2014


Systematic evolution of temperature-dependent resistivity in La 2 x Sr x CuO 4
journal, November 1992


Temperature and Purity Dependence of the Superconducting Critical Field, H c 2 . III. Electron Spin and Spin-Orbit Effects
journal, July 1966


A Novel Low-Density, High-Hardness, High-entropy Alloy with Close-packed Single-phase Nanocrystalline Structures
journal, December 2014


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


Microstructure and room temperature properties of a high-entropy TaNbHfZrTi alloy
journal, May 2011


Reduced superconducting transition temperatures in amorphous transition metal alloys
journal, April 1977


Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
journal, May 2004

  • Yeh, J.-W.; Chen, S.-K.; Lin, S.-J.
  • Advanced Engineering Materials, Vol. 6, Issue 5, p. 299-303
  • DOI: 10.1002/adem.200300567

Simple rules for the understanding of Heusler compounds
journal, May 2011


Colloquium : Saturation of electrical resistivity
journal, October 2003


Superconductivity and magnetism in Rb x Fe 2 y Se 2 : Impact of thermal treatment on mesoscopic phase separation
journal, October 2012


High-entropy alloy: challenges and prospects
journal, July 2016


Superconductivity of Ta 34 Nb 33 Hf 8 Zr 14 Ti 11 high entropy alloy from first principles calculations
journal, March 2016

  • Jasiewicz, K.; Wiendlocha, B.; Korbeń, P.
  • physica status solidi (RRL) - Rapid Research Letters, Vol. 10, Issue 5
  • DOI: 10.1002/pssr.201600056

Structural instability and superconductivity in A-15 compounds
journal, July 1975


Superconductivity in "Amorphous" Transition-Metal Alloy Films
journal, January 1973


Ultrastrong ductile and stable high-entropy alloys at small scales
journal, July 2015

  • Zou, Yu; Ma, Huan; Spolenak, Ralph
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms8748

Superconductivity: its role, its success and its setbacks in the Large Hadron Collider of CERN
journal, February 2010


Accelerated exploration of multi-principal element alloys with solid solution phases
journal, March 2015

  • Senkov, O. N.; Miller, J. D.; Miracle, D. B.
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms7529

Exceptional damage-tolerance of a medium-entropy alloy CrCoNi at cryogenic temperatures
journal, February 2016

  • Gludovatz, Bernd; Hohenwarter, Anton; Thurston, Keli V. S.
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms10602

Enhancement of the superconducting transition temperature near a phase instability in NaxWO3
journal, August 1974


Equilibrium Thermodynamic Properties of the Mixture of Hard Spheres
journal, February 1971

  • Mansoori, G. A.; Carnahan, N. F.; Starling, K. E.
  • The Journal of Chemical Physics, Vol. 54, Issue 4
  • DOI: 10.1063/1.1675048

Superconductivity near 30 K without copper: the Ba0.6K0.4BiO3 perovskite
journal, April 1988

  • Cava, R. J.; Batlogg, B.; Krajewski, J. J.
  • Nature, Vol. 332, Issue 6167
  • DOI: 10.1038/332814a0

A fracture-resistant high-entropy alloy for cryogenic applications
journal, September 2014


Superconductivity in rubidium-substituted Ba 1 x Rb x Ti 2 Sb 2 O
journal, March 2014


A review of mechanical behaviour and stress effects in hard superconductors
journal, July 1977


Superconductivity in the Heusler family of intermetallics
journal, May 2012


Discovery of a Superconducting High-Entropy Alloy
journal, September 2014


The oxygen isotope effect in Ba0.625K0.375BiO3
journal, September 1988

  • Hinks, D. G.; Richards, D. R.; Dabrowski, B.
  • Nature, Vol. 335, Issue 6189
  • DOI: 10.1038/335419a0

Critical fields, Pauli paramagnetic limiting, and material parameters of Nb 3 Sn and V 3 Si
journal, May 1979


Transition Temperature of Strong-Coupled Superconductors
journal, March 1968


    Works referencing / citing this record:

    Superconductivity in a new hexagonal high-entropy alloy
    journal, June 2019