2011/07/25 by Kurt M. Boden, W. P. Pratt, W. P. Pratt Jr. +1
Physics and Astronomy · #Condensed matter physics #Conductance #Density of states #Electron #Fermi energy #Fermi level #Ferromagnetism #Layer (electronics) #Local density of states #Magnetic properties of thin films #Materials science #Nanotechnology #Physics #Physics of Superconductivity and Magnetism #Proximity effect (electron beam lithography) #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Superconductivity #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.84.020510
published as Physical Review B 84, 020510(R) (2011) · 4 pages, 4 figures
openalex publication_date 2011/07/25 · arxiv created 2011/08/29 · arxiv updated 2015/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have measured the evolution of the tunneling density of states (DOS) in superconductor/ferromagnet (S/F) bilayers with increasing F-layer thickness, where F in our experiment is the strong ferromagnet Ni. As a function of increasing Ni thickness, we detect multiple oscillations in the DOS at the Fermi energy from differential conductance measurements. The features in the DOS associated with the proximity effect change from normal to inverted twice as the Ni thickness increases from 1 to 5 nm.