DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sc–Zr–Nb–Rh–Pd and Sc–Zr–Nb–Ta–Rh–Pd High-Entropy Alloy Superconductors on a CsCl-Type Lattice

Abstract

We have synthesized previously unreported High-Entropy Alloys (HEAs) in the pentanary (ScZrNb)1-x[RhPd]x and hexanary (ScZrNbTa)1-x[RhPd]x systems. The materials have CsCl-type structures and mixed site occupancies. Both HEAs are type-II superconductors with strongly varying critical temperatures (Tcs) depending on the valence electron count (VEC); the Tcs increase monotonically with decreasing VEC within each series, and do not follow the trends seen for either crystalline or amorphous transition metal superconductors. The (ScZrNb)0.65[RhPd]0.35 HEA with the highest Tc, ~9.3 K, also exhibits the largest µ0Hc2(0) = 10.7 T. The pentanary and hexanary HEAs have higher superconducting transition tempera-tures than their simple binary intermetallic relatives with the CsCl-type structure and a surprisingly ductile mechanical behavior. The presence of niobium, even at the 20% level, has a positive impact on the Tc. Nevertheless, niobium-free (ScZr)0.50[RhPd]0.50, as mother-compound of both superconducting HEAs found here, is itself superconducting, proving that superconductivity is an intrinsic feature of the bulk material.

Authors:
ORCiD logo [1];  [2];  [3];  [1];  [1]
  1. Princeton Univ., NJ (United States). Dept. of Chemistry
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics
  3. Univ. of Zurich (Switzerland). Dept. of Chemistry
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1433996
Report Number(s):
BNL-203546-2018-JAAM
Journal ID: ISSN 0897-4756; TRN: US1802669
Grant/Contract Number:  
SC0012704; GBMF-4412
Resource Type:
Accepted Manuscript
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Volume: 30; Journal Issue: 3; Journal ID: ISSN 0897-4756
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Stolze, Karoline, Tao, Jing, von Rohr, Fabian O., Kong, Tai, and Cava, Robert J. Sc–Zr–Nb–Rh–Pd and Sc–Zr–Nb–Ta–Rh–Pd High-Entropy Alloy Superconductors on a CsCl-Type Lattice. United States: N. p., 2018. Web. doi:10.1021/acs.chemmater.7b04578.
Stolze, Karoline, Tao, Jing, von Rohr, Fabian O., Kong, Tai, & Cava, Robert J. Sc–Zr–Nb–Rh–Pd and Sc–Zr–Nb–Ta–Rh–Pd High-Entropy Alloy Superconductors on a CsCl-Type Lattice. United States. https://doi.org/10.1021/acs.chemmater.7b04578
Stolze, Karoline, Tao, Jing, von Rohr, Fabian O., Kong, Tai, and Cava, Robert J. Wed . "Sc–Zr–Nb–Rh–Pd and Sc–Zr–Nb–Ta–Rh–Pd High-Entropy Alloy Superconductors on a CsCl-Type Lattice". United States. https://doi.org/10.1021/acs.chemmater.7b04578. https://www.osti.gov/servlets/purl/1433996.
@article{osti_1433996,
title = {Sc–Zr–Nb–Rh–Pd and Sc–Zr–Nb–Ta–Rh–Pd High-Entropy Alloy Superconductors on a CsCl-Type Lattice},
author = {Stolze, Karoline and Tao, Jing and von Rohr, Fabian O. and Kong, Tai and Cava, Robert J.},
abstractNote = {We have synthesized previously unreported High-Entropy Alloys (HEAs) in the pentanary (ScZrNb)1-x[RhPd]x and hexanary (ScZrNbTa)1-x[RhPd]x systems. The materials have CsCl-type structures and mixed site occupancies. Both HEAs are type-II superconductors with strongly varying critical temperatures (Tcs) depending on the valence electron count (VEC); the Tcs increase monotonically with decreasing VEC within each series, and do not follow the trends seen for either crystalline or amorphous transition metal superconductors. The (ScZrNb)0.65[RhPd]0.35 HEA with the highest Tc, ~9.3 K, also exhibits the largest µ0Hc2(0) = 10.7 T. The pentanary and hexanary HEAs have higher superconducting transition tempera-tures than their simple binary intermetallic relatives with the CsCl-type structure and a surprisingly ductile mechanical behavior. The presence of niobium, even at the 20% level, has a positive impact on the Tc. Nevertheless, niobium-free (ScZr)0.50[RhPd]0.50, as mother-compound of both superconducting HEAs found here, is itself superconducting, proving that superconductivity is an intrinsic feature of the bulk material.},
doi = {10.1021/acs.chemmater.7b04578},
journal = {Chemistry of Materials},
number = 3,
volume = 30,
place = {United States},
year = {2018},
month = {1}
}

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

Citation Metrics:
Cited by: 63 works
Citation information provided by
Web of Science

Figures / Tables:

Table 1 Table 1: Transition metal element and binary alloy superconductors with the body-centered cubic structure, and superconducting binary intermetallic AB compounds with the CsCl-type cubic primitive structure, Tc ≥ 2 K.

Save / Share:

Works referenced in this record:

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

Microstructural development in equiatomic multicomponent alloys
journal, July 2004


Criteria for Predicting the Formation of Single-Phase High-Entropy Alloys
journal, March 2015

  • Troparevsky, M. Claudia; Morris, James R.; Kent, Paul R. C.
  • Physical Review X, Vol. 5, Issue 1
  • DOI: 10.1103/PhysRevX.5.011041

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

Predicting the formation and stability of single phase high-entropy alloys
journal, February 2016


A Promising New Class of High-Temperature Alloys: Eutectic High-Entropy Alloys
journal, August 2014

  • Lu, Yiping; Dong, Yong; Guo, Sheng
  • Scientific Reports, Vol. 4, Issue 1
  • DOI: 10.1038/srep06200

Formation rules of single phase solid solution in high entropy alloys
journal, May 2015


Single-phase high-entropy alloys – an overview
journal, January 2015

  • Kozak, Roksolana; Sologubenko, Alla; Steurer, Walter
  • Zeitschrift für Kristallographie - Crystalline Materials, Vol. 230, Issue 1
  • DOI: 10.1515/zkri-2014-1739

More than entropy in high-entropy alloys: Forming solid solutions or amorphous phase
journal, October 2013


Searching for Next Single-Phase High-Entropy Alloy Compositions
journal, October 2013


Phase stability in high entropy alloys: Formation of solid-solution phase or amorphous phase
journal, December 2011


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


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


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

Phase equilibria, microstructure, and high temperature oxidation resistance of novel refractory high-entropy alloys
journal, March 2015


Novel microstructure and properties of multicomponent CoCrCuFeNiTix alloys
journal, March 2007


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


Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor
journal, November 2016

  • von Rohr, Fabian; Winiarski, Michał J.; Tao, Jing
  • Proceedings of the National Academy of Sciences, Vol. 113, Issue 46
  • DOI: 10.1073/pnas.1615926113

Robust zero resistance in a superconducting high-entropy alloy at pressures up to 190 GPa
journal, November 2017

  • Guo, Jing; Wang, Honghong; von Rohr, Fabian
  • Proceedings of the National Academy of Sciences, Vol. 114, Issue 50
  • DOI: 10.1073/pnas.1716981114

Superconductivity in thermally annealed Ta-Nb-Hf-Zr-Ti high-entropy alloys
journal, February 2017


Tabulations and Correlations of Transition Temperatures of Classical Superconductors
journal, February 2000

  • Poole, Jr., C. P.; Farach, H. A.
  • Journal of Superconductivity, Vol. 13, Issue 1, p. 47-60
  • DOI: 10.1023/A:1007770008439

Superconductivity in the elements, alloys and simple compounds
journal, July 2015

  • Webb, G. W.; Marsiglio, F.; Hirsch, J. E.
  • Physica C: Superconductivity and its Applications, Vol. 514
  • DOI: 10.1016/j.physc.2015.02.037

Obstacles to superconductivity in CsCl phases
journal, May 1976


Recent advances in magnetic structure determination by neutron powder diffraction
journal, October 1993


Superconductivity in hydrides of Nb-Pd and Nb-Rh
journal, January 1976


Superconductivity in a new intermetallic structure type based on endohedral Ta @ I r 7 G e 4 clusters
journal, May 2017

  • Srivichitranond, Laura C.; Seibel, Elizabeth M.; Xie, Weiwei
  • Physical Review B, Vol. 95, Issue 17
  • DOI: 10.1103/PhysRevB.95.174521

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


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


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


Superconductivity in narrow-band systems with local nonretarded attractive interactions
journal, January 1990


Noncentrosymmetric superconductor with a bulk three-dimensional Dirac cone gapped by strong spin-orbit coupling
journal, January 2014


Physical properties of the noncentrosymmetric superconductor Nb 0 . 18 Re 0 . 82
journal, April 2011


Structure and physical properties of the noncentrosymmetric superconductor Mo 3 Al 2 C
journal, August 2010


Upper critical field of borocarbide superconductors
journal, March 2001

  • Lan, M. D.; Chang, J. C.; Lu, K. T.
  • IEEE Transactions on Appiled Superconductivity, Vol. 11, Issue 1
  • DOI: 10.1109/77.919845

Works referencing / citing this record:

High-entropy functional materials
journal, September 2018

  • Gao, Michael C.; Miracle, Daniel B.; Maurice, David
  • Journal of Materials Research, Vol. 33, Issue 19
  • DOI: 10.1557/jmr.2018.323

Polymorphism and superconductivity in the V-Nb-Mo-Al-Ga high-entropy alloys
journal, January 2020


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


Pressure effects on the electronic structure and superconductivity of ( TaNb ) 0.67 ( HfZrTi ) 0.33 high entropy alloy
journal, November 2019


Superconductivity in a new hexagonal high entropy alloy
text, January 2019


Polymorphism and superconductivity in the V-Nb-Mo-Al-Ga high-entropy alloys
text, January 2020