Speakers' corner talk application

ristoja commented 3 years ago

Name

Risto Ojajärvi

Affiliation

University of Jyväskylä

Email

risto.m.m.ojajarvi@jyu.fi

Preprint ID

2103.07412

Title

Superconductivity provides a giant enhancement to the spin battery effect

Abstract

We develop a theory of the spin battery effect in superconductor/ferromagnetic insulator (SC/FI) systems taking into account the magnetic proximity effect. We demonstrate that the spin-energy mixing enabled by the superconductivity leads to the enhancement of spin accumulation by several orders of magnitude relative to the normal state. This finding can explain the recently observed giant inverse spin Hall effect generated by thermal magnons in the SC/FI system. We suggest a non-local electrical detection scheme which can directly probe the spin accumulation driven by the magnetization dynamics. We predict a giant Seebeck effect converting the magnon temperature bias into the non-local voltage signal. We also show how this can be used to enhance the sensitivity of magnon detection even up to the single-magnon level.

Authors

Risto Ojajärvi, Tero T. Heikkilä, P. Virtanen, M. A. Silaev

Time slot

2021-06-23 12:00 UTC

Notes

Confirmation

I declare that:

The other coauthors agree to the presentation
I permit VSF to perform and publish the recording (following my approval)
I will follow the VSF code of conduct and the rules of the Speakers' corner seminar

vsf-bot commented 3 years ago

Your submission looks good!

I updated title, abstract, authors

As the next step, a team member will check that:

[x] Everything is generally in order
[x] The author's email is institutional or otherwise known

They will respond here and once everything looks good add the "approved" label.

vsf-bot commented 3 years ago

We've added your talk to the schedule :tada:!

Below please find a checklist for your presentation.
Please read it carefully and confirm that everything is clear by adding a comment to this issue.
Also reply here if you have any questions or problems. Good luck with your talk!

Before your meeting

We will send you an email containing the meeting key and your join URL in a moment. Confirm that you received the meeting key and URL by responding in this issue.
Install a Zoom client. This is required to claim host.
Test your setup on your own: check that your sound, video, and slide-sharing work.
Announce the meeting to your colleagues and invite them to register for the talk.
We will include your talk in the VSF mailing list announcement. If you like you can also tweet at @VirtualSciForum with the hashtag #VSFSpeakersCorner and we will retweet information about your talk.

During the meeting

The meeting will be open for joining 5 minutes before the talk starts. Join at that time using the personal link we sent (don't be late!).
Ensure that your screen resolution is 1920x1080 or lower; otherwise, the speaker's video will be too small in the recording.
Claim meeting host by using the host key that is in your email. (You won't be able to use screenshare otherwise)
The recording starts automatically as soon as you join. Don't stop it; you may pause it, but don't forget to unpause.
Tell your audience how the questions will be organized. Can they ask questions during the talk or only at the end? How should they signal they have a question?
Start your presentation.
Aim for a 40 minute presentation followed by 15 minutes discussion. You may go over time, but your meeting will be stopped after one hour and a half.

After the meeting

Once the recording is ready, we share a link to it and ask for your approval.
Once approved, the recording will be published at the Speakers' Corner YouTube page

ristoja commented 3 years ago

Is the length of the Speaker's corner talk fixed to 40min? I would actually like to give a shorter 30min talk if that is ok, and can be added to the announcement.

ristoja commented 3 years ago

I confirm that I received the email instructions, read and understood them.

akhmerov commented 3 years ago

40 m is the recommended length, but you're free to give either a shorter or a longer one—the only hard limit is that the meeting is stopped after 1¾ hours.

Do you think it's important to reflect the shorter duration in the announcement? We don't really specify the talk duration right now.

ristoja commented 3 years ago

No, it's not necessary. I can also specify the approximate length of the talk in the beginning of the talk.

ristoja commented 3 years ago

I approve publishing of the recording. Talk start is 00:11:16, talk end is 01:12:18.

vsf-bot commented 3 years ago

I uploaded the video to https://youtu.be/0WORs165TZk 🎉!

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