{
  "id": "2210.03383",
  "version": "v1",
  "published": "2022-10-07T07:58:47.000Z",
  "updated": "2022-10-07T07:58:47.000Z",
  "title": "Spin polarisation and spin dependent scattering of holes in transverse magnetic focussing",
  "authors": [
    "M. J. Rendell",
    "S. D. Liles",
    "A. Srinivasan",
    "O. Klochan",
    "I. Farrer",
    "D. A. Ritchie",
    "A. R. Hamilton"
  ],
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "In 2D systems with a spin-orbit interaction, magnetic focussing can be used to create a spatial separation of particles with different spin. Here we measure hole magnetic focussing for two different magnitudes of the Rashba spin-orbit interaction. We find that when the Rashba spin-orbit magnitude is large there is significant attenuation of one of the focussing peaks, which is conventionally associated with a change in the spin polarisation. We instead show that in hole systems with a $k^3$ spin-orbit interaction, this peak suppression is due to a change in the scattering of one spin state, not a change in spin polarisation. We also show that the change in scattering length extracted from magnetic focussing is consistent with results obtained from measurements of Shubnikov-de Haas oscillations. This result suggests that scattering must be considered when relating focussing peak amplitude to spin polarisation in hole systems",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-10-07T07:58:47.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "spin polarisation",
      "spin dependent scattering",
      "transverse magnetic focussing",
      "hole systems",
      "measure hole magnetic"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}