Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Terahertz electromagnetic radiation from intrinsic Josephson junctions at zero magnetic field via breather-type self-oscillations
Stockholms universitet, Naturvetenskapliga fakulteten, Fysikum.
2011 (Engelska)Ingår i: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 83, nr 17, s. 174517-Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

I propose a new mechanism of intense high-frequency electromagnetic wave generation by spatially uniform stacked Josephson junctions at zero magnetic field. The ac-Josephson effect converts the dc-bias voltage into ac supercurrent; however, in the absence of spatial variation of the Josephson phase difference it does not provide dc-to-ac power conversion, needed for emission of electromagnetic waves. Here I demonstrate that at geometrical resonance conditions, spatial homogeneity of the phase can be spontaneously broken by the appearance of breathers (bound fluxon-antifluxon pairs), facilitating effective dc-to-ac power conversion. This leads to self-oscillations at cavity-mode frequencies, accompanied by the emission of radiation. The proposed mechanism explains all major features of recently observed THz radiation from large-area Bi(2)Sr(2)CaCu(2)O(8+x) mesa structures.

Ort, förlag, år, upplaga, sidor
2011. Vol. 83, nr 17, s. 174517-
Nationell ämneskategori
Fysik
Identifikatorer
URN: urn:nbn:se:su:diva-68093DOI: 10.1103/PhysRevB.83.174517ISI: 000291015400005OAI: oai:DiVA.org:su-68093DiVA, id: diva2:472668
Anmärkning
authorCount :1Tillgänglig från: 2012-01-04 Skapad: 2012-01-03 Senast uppdaterad: 2022-02-24Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Person

Krasnov, Vladimir M.

Sök vidare i DiVA

Av författaren/redaktören
Krasnov, Vladimir M.
Av organisationen
Fysikum
I samma tidskrift
Physical Review B. Condensed Matter and Materials Physics
Fysik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 26 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf