SwePub
Sök i LIBRIS databas

  Utökad sökning

id:"swepub:oai:DiVA.org:kth-286217"
 

Sökning: id:"swepub:oai:DiVA.org:kth-286217" > Tuning Magnetic Dro...

Tuning Magnetic Droplets in Nanocontact Spin-Torque Oscillators Using Electric Fields

Zheng, Cuixiu (författare)
Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China.
Dvornik, Mykola (författare)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
Wang, Chengjie (författare)
Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China.
visa fler...
Xiao, Dun (författare)
Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China.
Liu, Yaowen (författare)
Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China.;Fudan Univ, Dept Opt Sci & Engn, Shanghai 200433, Peoples R China.
Zhang, Zongzhi (författare)
Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China.
Zhou, Yan (författare)
Chinese Univ Hong Kong, Sch Sci & Engn, Shenzhen 518172, Peoples R China.
Mazraati, Hamid, Industrial PhD Student, 1989- (författare)
KTH,Material- och nanofysik
Ahlberg, Martina (författare)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
Awad, Ahmad (författare)
Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
Åkerman, Johan (författare)
Gothenburg University,Göteborgs universitet,KTH,Material- och nanofysik,Univ Gothenburg, Dept Phys, S-41296 Gothenburg, Sweden.,Institutionen för fysik (GU),Department of Physics (GU)
visa färre...
Tongji Univ, Sch Phys Sci & Engn, Shanghai Key Lab Special Artificial Microstruct M, Shanghai 200092, Peoples R China Institutionen för fysik (GU) (creator_code:org_t)
American Physical Society (APS), 2020
2020
Engelska.
Ingår i: Physical Review Applied. - : American Physical Society (APS). - 2331-7019. ; 14:5
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Reliable in situ control of spin wave (SW) excitation between localized and propagating SW modes is of great interest for both fundamental and applied spintronics and magnonics. While spin-transfer-torque-generated SWs can typically be tuned directly via the driving current, the frequency of the highest intensity SWs, achieved in the strongly self-localized magnetic droplet soliton, is virtually current independent, as the droplet frequency is given by the intrinsic material properties. Here, we demonstrate, using micromagnetic simulations, how the droplet frequency can be efficiently tuned by an applied voltage through the effect of electric field (E-field)-dependent perpendicular magnetic anisotropy (PMA). It is found that as the PMA decreases, the droplet begins to distort and eventually collapses to give way to propagating SWs. However, due to the geometrically confined structures, the radially propagating SWs are reflected by the periphery boundary of the sample, and then the forward and backward SWs superpose to produce a series of standing SWs. The node number of the standing SWs strongly depends on the sample size as well as the applied E field. These findings provide a deeper understanding of magnetic excitation properties, which will be helpful for designing advanced spintronic devices.

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy