Magnetic and Transport Properties in Ion-Irradiated Cr2AlC

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

  • Joao S. Cabaco - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • Ulrich Kentsch - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • Fangchao Long - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • Fabian Ganss - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • Jürgen Lindner - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • Jürgen Faßbender - , Professur für Angewandte Festkörperphysik (gB/HZDR), Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • Christoph Leyens - , Professur für Werkstofftechnik (Autor:in)
  • Rantej Bali - , Helmholtz-Zentrum Dresden-Rossendorf (HZDR) (Autor:in)
  • Richard Boucher - , Professur für Werkstofftechnik (Autor:in)

Abstract

The presence of open-volume defects, such as vacancies, can significantly alter the functional properties of a material, including its structure and electronic transport. This study employs ion irradiation using inert ions (Ar+) and transition metal ions (Co+) at fluences of 1012-1015ions· cm-2 to achieve systematic disorder in the multilayer structure of MAX-phase Cr2AlC. It is shown that the magnitude of the paramagnetic response of Cr2AlC increases with ion fluence, regardless of the dopant used. A combination of isolated moments in defect sites with J=1/2 and magnetic clusters are used to explain this behavior. Low-temperature (< 30 K) resistivity measurements show local minima and sudden up(down)-turns with decreasing temperature, which, together with unusual MR in this temperature range, suggest the presence of quantum transport effects, such as the Kondo effect.

Details

OriginalspracheEnglisch
Titel2024 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2024 - Proceedings
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers Inc.
Seiten1-2
ISBN (elektronisch)9798350362213
PublikationsstatusVeröffentlicht - 2024
Peer-Review-StatusJa

Konferenz

Titel2024 IEEE International Magnetic Conference
KurztitelINTERMAG 2024
Dauer5 - 10 Mai 2024
Webseite
OrtWindsor Conference, Exibition Center and Hotels
StadtRio de Janeiro
LandBrasilien

Schlagworte

Schlagwörter

  • Defects, MAX-phase, Vacancies