“School of Physics”

Back to Papers Home
Back to Papers of School of Physics

Paper   IPM / P / 13900
School of Physics
  Title:   Spin nutation effects in molecular nanomagnet–superconductor tunnel junctions
1.  J . Abouie
2.  B . Abdollahipour
3.  A A. Rostami
  Status:   Published
  Journal: J. Physics: Condens. Matter
  Vol.:  25
  Year:  2013
  Pages:   465701
  Supported by:  IPM
We study the spin nutation effects of a molecular nanomagnet on the Josephson current through a superconductor j molecular nanomagnet j superconductor tunnel junction. We explicitly demonstrate that, due to the spin nutation of the molecular nanomagnet, two oscillatory terms emerge in the ac Josephson current in addition to the conventional ac Josephson current. Some resonances occur in the junction due to the interactions of the transported quasiparticles with the bias voltage and molecular nanomagnet spin dynamics. Their appearance indicates that the energy exchanged during these interactions is in the range of the superconducting energy gap. We also show that the spin nutation is able to convert the ac Josephson current to a dc current, which is interesting for applications.

Download TeX format
back to top
scroll left or right