English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Composition dependent polymorphism and superconductivity in Y3+x{Rh,Ir}4Ge13-x

Feig, M., Carrillo-Cabrera, W., Bobnar, M., Simon, P., Curfs, C., Levytskyi, V., et al. (2022). Composition dependent polymorphism and superconductivity in Y3+x{Rh,Ir}4Ge13-x. Dalton Transactions, 51(12), 4734-4748. doi:10.1039/d2dt00167e.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Feig, Manuel1, Author
Carrillo-Cabrera, Wilder2, Author           
Bobnar, Matej1, Author
Simon, Paul3, Author           
Curfs, Caroline1, Author
Levytskyi, Volodymyr1, Author
Tsirlin, Alexander A.1, Author
Leithe-Jasper, Andreas4, Author           
Gumeniuk, Roman1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
3Paul Simon, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863418              
4Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863406              

Content

show
hide
Free keywords: -
 Abstract: Polymorphism is observed in the Y3+xRh4Ge13-x series. The decrease of Y-content leads to the transformation of the primitive cubic Y3.6Rh4Ge12.4 [x = 0.6, space group Pm3n, a = 8.96095(9) angstrom], revealing a strongly disordered structure of the Yb3Rh4Sn13 Remeika prototype, into a body-centred cubic structure [La3Rh4Sn13 structure type, space group I4(1)32, a = 17.90876(6) angstrom] for x = 0.4 and further into a tetragonal arrangement (Lu3Ir4Ge13 structure type, space group I4(1)/amd, a = 17.86453(4) angstrom, a = 17.91076(6) angstrom) for the stoichiometric (i.e. x = 0) Y3Rh4Ge13. Analogous symmetry lowering is found within the Y3+xIr4Ge13-x series, where the compound with Y-content x = 0.6 is crystallizing with La3Rh4Sn13 structure type [a = 17.90833(8) angstrom] and the stoichiometric Y3Ir4Ge13 is isostructural with the Rh-analogue [a = 17.89411(9) angstrom, a = 17.9353(1) angstrom]. The structural relationships of these derivatives of the Remeika prototype are discussed. Compounds from the Y3+xRh4Ge13-x series are found to be weakly-coupled BCS-like superconductors with T-c = 1.25, 0.43 and 0.6, for x = 0.6, 0.4 and 0, respectively. They also reveal low thermal conductivity (<1.5 W K-1 m(-1) in the temperature range 1.8-350 K) and small Seebeck coefficients. The latter are common for metallic systems. Y3Rh4Ge13 undergoes a first-order phase transition at T-f = 177 K, with signatures compatible to a charge density wave scenario. The electronic structure calculations confirm the instability of the idealized Yb3Rh4Sn13-like structural arrangements for Y3Rh4Ge13 and Y3Ir4Ge13.

Details

show
hide
Language(s): eng - English
 Dates: 2022-03-042022-03-04
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000764227700001
DOI: 10.1039/d2dt00167e
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Dalton Transactions
  Abbreviation : Dalton Trans.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 51 (12) Sequence Number: - Start / End Page: 4734 - 4748 Identifier: ISSN: 1477-9226
CoNE: https://pure.mpg.de/cone/journals/resource/954925269323