Materials Map

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Publications (1/1 displayed)

  • 2024Robust superconductivity and the suppression of charge-density wave in the quasi-skutterudites $text{Ca}_{3}(text{Ir}_{1-x}text{Rh}_{x})_{4}text{Sn}_{13}$ single crystals at ambient pressure1citations

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Krenkel, Elizabeth
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Tanatar, Makariy A.
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Petrovic, Cedomir
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Chen, Shuzhang
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2024

Co-Authors (by relevance)

  • Krenkel, Elizabeth
  • Tanatar, Makariy A.
  • Petrovic, Cedomir
  • Chen, Shuzhang
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article

Robust superconductivity and the suppression of charge-density wave in the quasi-skutterudites $text{Ca}_{3}(text{Ir}_{1-x}text{Rh}_{x})_{4}text{Sn}_{13}$ single crystals at ambient pressure

  • Krenkel, Elizabeth
  • Tanatar, Makariy A.
  • Petrovic, Cedomir
  • Ghimire, Sunil
  • Chen, Shuzhang
Abstract

<jats:title>Abstract</jats:title><jats:p>The coexistence and competition between the charge density wave (CDW) and superconductivity was studied by varying the Rh/Ir ratio. The superconducting transition temperature, $T_c$, varies from 7 K in pure Ir ($x=0$)&amp;#xD;to 8.3 K in pure Rh ($x=1$). Temperature-dependent electrical resistivity reveals monotonic suppression of the CDW transition temperature, $T_{{CDW}}(x)$. The CDW starts in pure Ir, $x=0$, at $T_{{CDW}}$~K and extrapolates roughly linearly to zero at $x_c0.53-0.58$ under the superconducting dome. Magnetization and transport measurements show a significant influence of CDW on superconducting and normal states. Meissner expulsion is substantially reduced in the CDW region, indicating competition between the CDW and superconductivity. The low-temperature resistivity is higher in the CDW part of the phase diagram, consistent with the reduced density of states due to CDW gapping. Its temperature dependence just above $T_c$ shows signs of non-Fermi liquid behavior in a cone-like composition pattern. We conclude that the ${Ca}_3({Ir}_{1-x}{Rh}_x)_4{Sn}_{13}$ alloy is a good candidate for a composition-driven quantum critical point (QCP) at ambient pressure.&amp;#xD;Temperature-dependent electrical resistivity reveals monotonic suppression of the CDW transition temperature, $T_{{CDW}}(x)$. The CDW starts in pure Ir, $x=0$, at $T_{{CDW}}$~K and extrapolates roughly linearly to zero at $x_c0.53-0.58$ under the superconducting dome. Magnetization and transport measurements show a significant influence of CDW on superconducting and normal states. Meissner expulsion is substantially reduced in the CDW region, indicating the competition between the CDW and superconductivity. The low-temperature resistivity is higher in the CDW part of the phase diagram, consistent with the reduced density of states due to CDW gapping. Its temperature dependence just above $T_c$ shows clear signs of non-Fermi-liquid behavior in a cone-like composition pattern. We conclude that the ${Ca}_3({Ir}_{1-x}{Rh}_x)_4{Sn}_{13}$ alloy is a good candidate for a composition-driven quantum critical point (QCP) at ambient pressure.</jats:p>

Topics
  • density
  • impedance spectroscopy
  • single crystal
  • resistivity
  • phase
  • phase diagram
  • magnetization
  • superconductivity
  • superconductivity