publication . Preprint . Article . Other literature type . 2020

An insulating doped antiferromagnet with low magnetic symmetry as a room temperature spin conduit

Andrew Ross; Romain Lebrun; Lorenzo Baldrati; Akashdeep Kamra; Olena Gomonay; Shilei Ding; Felix Schreiber; Dirk Backes; Francesco Maccherozzi; Daniel A. Grave; ...
Open Access English
  • Published: 19 Nov 2020
Abstract
We report room temperature long-distance spin transport of magnons in antiferromagnetic thin film hematite doped with Zn. The additional dopants significantly alter the magnetic anisotropies, resulting in a complex equilibrium spin structure that is capable of efficiently transporting spin angular momentum at room temperature without the need for a well-defined, pure easy-axis or easy-plane anisotropy. We find intrinsic magnon spin-diffusion lengths of up to 1.5 {\mu}m, and magnetic domain governed decay lengths of 175 nm for the low frequency magnons, through electrical transport measurements demonstrating that the introduction of non-magnetic dopants does not ...
Subjects
arXiv: Condensed Matter::Strongly Correlated ElectronsCondensed Matter::Materials Science
free text keywords: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, Physics and Astronomy (miscellaneous), 530 Physik, 530 Physics, Spin structure, Spin (physics), Antiferromagnetism, Magnetic domain, Magnetoresistance, Magnon, Magnetic damping, Materials science, Condensed matter physics, Spin-½
Communities
Communities with gateway
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Funded by
EC| FAST
Project
FAST
Fast electronics with Antiferromagnetic SpinTronics
  • Funder: European Commission (EC)
  • Project Code: 752195
  • Funding stream: H2020 | MSCA-IF-EF-ST
Validated by funder
,
EC| ETASECS
Project
ETASECS
Extremely Thin Absorbers for Solar Energy Conversion and Storage
  • Funder: European Commission (EC)
  • Project Code: 617516
  • Funding stream: FP7 | SP2 | ERC
,
EC| SC2
Project
SC2
Spin-charge conversion and spin caloritronics at hybrid organic-inorganic interfaces
  • Funder: European Commission (EC)
  • Project Code: 610115
  • Funding stream: FP7 | SP2 | ERC
,
EC| s-NEBULA
Project
s-NEBULA
Novel Spin-Based Building Blocks for Advanced TeraHertz Applications
  • Funder: European Commission (EC)
  • Project Code: 863155
  • Funding stream: H2020 | RIA
,
EC| ARTES
Project
ARTES
AntifeRromagnetic spin Transport and Switching
  • Funder: European Commission (EC)
  • Project Code: 793159
  • Funding stream: H2020 | MSCA-IF-EF-ST
Validated by funder
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