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Title: Role of exchange interaction in nitrogen vacancy center based magnetometry
Authors: Ho, Cong Son
Tan, Seng Ghee
Jalil, Mansoor B. A.
Chen, Zilong
Krivitsky, Leonid A.
Keywords: Ferromagnetic heterostructure (FMH)
Nitrogen vacancy center (NVC)
Issue Date: 2016
Source: Ho, C. S., Tan, S. G., Jalil, M. B. A., Chen, Z., & Krivitsky, L. A. (2016). Role of exchange interaction in nitrogen vacancy center based magnetometry. Physical Review B, 94, 245424-.
Series/Report no.: Physical Review B
Abstract: 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.
ISSN: 2469-9950
DOI: 10.1103/PhysRevB.94.245424
Schools: School of Physical and Mathematical Sciences 
Rights: © 2016 American Physical Society. This paper was published in Physical Review B and is made available as an electronic reprint (preprint) with permission of American Physical Society. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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