HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

EPR characterization of Co-doped ZnO microwires and distant spin-pair coupling

Abstract : Cobalt-doped ZnO microwires have been grown by the optical furnace method with Co concentration in the range 0-5%. The high crystallinity of these objects is demonstrated by the use of electron paramagnetic resonance (EPR), in which Co 2+ ions serve as magnetic probes. The spin state of these isolated magnetic impurities and their location in the host crystal are addressed by EPR, as well as the coupling constant between non-nearest Co 2+-Co 2+ neighbors. Eight of these distant spin pairs are detected, among which two are confirmed to be ferromagnetic. The problem of their localization in the wurtzite structure is discussed.
Complete list of metadata

Contributor : Adrien Savoyant Connect in order to contact the contributor
Submitted on : Monday, February 28, 2022 - 4:24:50 PM
Last modification on : Friday, March 11, 2022 - 12:02:04 PM


Files produced by the author(s)



Adrien Savoyant, Fabien Giovannelli, F Delorme, A Stepanov. EPR characterization of Co-doped ZnO microwires and distant spin-pair coupling. Semiconductor Science and Technology, IOP Publishing, 2015, 30, pp.075004. ⟨10.1088/0268-1242/30/7/075004⟩. ⟨hal-03586851⟩



Record views


Files downloads