DOI > 10.5291/ILL-DATA.4-01-1253

This proposal is publicly available since 05/29/2018

Title

Anomalous spin response in noncentrosymmetric systems

Abstract

We propose to measure the momentum dependence of the anomalous spin susceptibility in the noncentrosymmetric heavy-fermion CePt3Si. Due to the antisymmetric Rashba-type spin-orbit coupling, the xx and yy components of the anomalous spin susceptibility are expected to have different wave vector dependencies, and this can be probed using polarized neutron scattering on a triple-axis spectrometer. We believe the proposed experiment represents one of the first studies of the anomalous spin susceptibility in a noncentrosymmetric system. Additionally, the experiment may give an estimate of the strength of the Rashba coupling, from which the splitting of the Fermi surfaces could be determined, and hence give further insight in the unconventional superconductivity of CePt3Si.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

FAK Bjorn; D.T. Adroja and BOEHM Martin. (2013). Anomalous spin response in noncentrosymmetric systems. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1253

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Metadata

Experiment Parameters

  • Environment temperature

    1.5-10 K
  • Experiment energy

    Ei=4 meV
  • Experiment res energy

    0.15 meV

Sample Parameters

  • Formula

    • CePt3Si
  • Consistence

    single crystal
  • Mass

    6700
  • Space

    P4mm (No. 99)
  • Unit cell A

    4.072
  • Unit cell C

    5.442