Evidence map›Paper›PMID 34597058›Full record

ArticleNano letters2021

Directional Excitation of a High-Density Magnon Gas Using Coherently Driven Spin Waves.

Brecht G Simon, Samer Kurdi, Helena La, Iacopo Bertelli, Joris J Carmiggelt, Maximilian Ruf, Nick de Jong, Hans van den Berg, Allard J Katan, Toeno van der Sar

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nano letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 21 citations in OpenAlex.

  1. Review
  2. Article
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  4. Review
  5. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 1 country.

Brecht G SimonDepartment of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.ORCID https://orcid.org/0000-0002-5785-001X
Samer KurdiDepartment of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.ORCID https://orcid.org/0000-0002-7374-2844
Helena LaDepartment of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.
Iacopo BertelliDepartment of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.ORCID https://orcid.org/0000-0001-5625-7006
Joris J CarmiggeltDepartment of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.ORCID https://orcid.org/0000-0001-9833-4268
Maximilian RufQuTech, Delft University of Technology, 2628 CJ Delft, The Netherlands.ORCID https://orcid.org/0000-0001-9116-6214
Nick de JongQuTech, Delft University of Technology, 2628 CJ Delft, The Netherlands.
Hans van den BergQuTech, Delft University of Technology, 2628 CJ Delft, The Netherlands.
Allard J KatanDepartment of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.ORCID https://orcid.org/0000-0002-7185-6274
Toeno van der SarDepartment of Quantum Nanoscience, Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands.ORCID https://orcid.org/0000-0002-6197-4808
Delft University of Technology · NLNetherlands Organisation for Applied Scientific Research · NLLeiden University · NLQuTech · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Controlling magnon densities in magnetic materials enables driving spin transport in magnonic devices. We demonstrate the creation of large, out-of-equilibrium magnon densities in a thin-film magnetic insulator via microwave excitation of coherent spin waves and subsequent multimagnon scattering. We image both the coherent spin waves and the resulting incoherent magnon gas using scanning-probe magnetometry based on electron spins in diamond. We find that the gas extends unidirectionally over hundreds of micrometers from the excitation stripline. Surprisingly, the gas density far exceeds that expected for a boson system following a Bose-Einstein distribution with a maximum value of the chemical potential. We characterize the momentum distribution of the gas by measuring the nanoscale spatial decay of the magnetic stray fields. Our results show that driving coherent spin waves leads to a strong out-of-equilibrium occupation of the spin-wave band, opening new possibilities for controlling spin transport and magnetic dynamics in target directions.

Indexed as

Magnon gasNitrogen-vacancy centersScanning-probe magnetometrySpin relaxometrySpin wavesYttrium iron garnet

Identifiers

PMID34597058
PMCPMC8517981
OpenAlexW3203632415

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.