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Stimulated emission and absorption of photons in magnetic point contacts
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2012 (English)In: New Journal of Physics, ISSN 1367-2630, E-ISSN 1367-2630, Vol. 14, 093021- p.Article in journal (Refereed) Published
Abstract [en]

Point contacts between high anisotropy ferromagnetic SmCo5 and normal metal Cu are used to achieve a strong spin-population inversion in the contact core. Subjected to microwave irradiation in resonance with the Zeeman splitting in Cu, the inverted spin population relaxes through stimulated spin-flip photon emission, detected as peaks in the point-contact resistance. Resonant spin-flip photon absorption is detected as resistance minima, corresponding to sourcing the photon field energy into the electrical circuit. These results demonstrate fundamental mechanisms that are potentially useful in designing metallic spin-based lasers.

Place, publisher, year, edition, pages
2012. Vol. 14, 093021- p.
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Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-103369DOI: 10.1088/1367-2630/14/9/093021ISI: 000308744200002Scopus ID: 2-s2.0-84866330749OAI: oai:DiVA.org:kth-103369DiVA: diva2:560975
Note

QC 20121016

Available from: 2012-10-16 Created: 2012-10-11 Last updated: 2017-12-07Bibliographically approved

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Korenivski, Vladislav

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