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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00541007" target="_blank" >RIV/68378271:_____/20:00541007 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1063/5.0032940" target="_blank" >https://doi.org/10.1063/5.0032940</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0032940" target="_blank" >10.1063/5.0032940</a>

Result language

angličtina

Original language name

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

Original language description

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 lm, and magnetic domain governed decay lengths of 175 nm for the low-frequency magnons, through electrical transport measurements demonstrating that the introduction of nonmagnetic dopants does not strongly reduce the transport length scale, showing that the magnetic damping of hematite is not significantly increased. We observe a complex field dependence of the nonlocal signal independent of the magnetic state visible, in the local magnetoresistance and direct magnetic imaging of the antiferromagnetic domain structure.n

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Physics Letters

ISSN

0003-6951

e-ISSN

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Volume of the periodical

117

Issue of the periodical within the volume

24

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

1-6

UT code for WoS article

000599762500005

EID of the result in the Scopus database

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