Intrinsic Magnetic (EuIn)As Nanowire Shells with a Unique Crystal Structure

Hadas Shtrikman, Man Suk Song, Magdalena A. Załuska-Kotur, Ryszard Buczko, Xi Wang, Beena Kalisky, Perla Kacman, Lothar Houben, Haim Beidenkopf

Research output: Contribution to journalArticlepeer-review

Abstract

In the pursuit of magneto-electronic systems nonstoichiometric magnetic elements commonly introduce disorder and enhance magnetic scattering. We demonstrate the growth of (EuIn)As shells, with a unique crystal structure comprised of a dense net of Eu inversion planes, over InAs and InAs1-xSbxcore nanowires. This is imaged with atomic and elemental resolution which reveal a prismatic configuration of the Eu planes. The results are supported by molecular dynamics simulations. Local magnetic and susceptibility mappings show magnetic response in all nanowires, while a subset bearing a DC signal points to ferromagnetic order. These provide a mechanism for enhancing Zeeman responses, operational at zero applied magnetic field. Such properties suggest that the obtained structures can serve as a preferred platform for time-reversal symmetry broken one-dimensional states including intrinsic topological superconductivity.

Original languageEnglish
Pages (from-to)8925-8931
Number of pages7
JournalNano Letters
Volume22
Issue number22
DOIs
StatePublished - 23 Nov 2022

Bibliographical note

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

Keywords

  • (EuIn)As
  • Eu inversion plane
  • core-shell
  • magnetic
  • mosaic structure
  • nanowires

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