2016/07/31 by Cong Son Ho, Seng Ghee Tan, M. B. A. Jalil +3
Engineering · Materials Science · Physics and Astronomy · #Condensed matter physics #Diamond #Diamond and Carbon-based Materials Research #Electronic and Structural Properties of Oxides #Exchange interaction #Ferromagnetism #Heterojunction #Magnetic field #Magnetometer #Materials science #Metal and Thin Film Mechanics #Metallurgy #Nitrogen-vacancy center #Physics #Quantum mechanics #Spin (aerodynamics) #Spintronics #Vacancy defect #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.94.245424
published as Phys. Rev. B 94, 245424 (2016) · 10 pages, 6 figures
openalex created_date 2016/09/16 · arxiv created 2016/10/27 · openalex publication_date 2016/12/20 · arxiv updated 2016/12/26 · openalex updated_date 2026/08/05
We propose a multilayer device comprising a thin-film-based ferromagnetic heterostructure (FMH) deposited on a diamond layer doped with nitrogen vacancy centers (NVC's). We find that when the NVC's are in close proximity (1--2 nm) to the FMH, the exchange energy is comparable to, and may even surpass, the magnetostatic interaction energy. This calls forth the need to consider and utilize both effects in magnetometry based on NVC's in diamond. As the distance between the FMH and NVC is decreased to the subnanometer scale, the exponential increase in the exchange energy suggests spintronic applications of NVC's beyond magnetometry, such as detection of spin Hall effect or spin currents.