Spin dynamics of two-coupled nanomagnets in spin-flop tunnel junctions

• Collective spin dynamics of two dipole-coupled nanomagnets in spin-flop tunnel junctions are studied experimentally and theoretically. The measured GHz magnetization oscillations reveal several collective spin-precessional modes. Analytical macrospin and numerical micromagnetic models of the spin-flop dynamics are developed, which provide a detailed explanation of the observed frequency spectra in terms of optical, acoustical, and micromagnetic modes in the antiparallel, parallel, and scissor magnetization states of the junctions.

Ämnesord

NATURVETENSKAP  -- Fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Nyckelord

RANDOM-ACCESS MEMORY; MAGNETIC THIN-FILMS; TOGGLE MRAM; REVERSAL

Physics

Fysik

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)