dc.contributor.author | COEY, JOHN | en |
dc.date.accessioned | 2015-02-19T11:26:03Z | |
dc.date.available | 2015-02-19T11:26:03Z | |
dc.date.issued | 2014 | en |
dc.date.submitted | 2014 | en |
dc.identifier.citation | Guo, P., Li, D.L., Feng, J.F., (...), Coey, J.M.D., Han, X.F., Conductance enhancement due to interface magnons in electron-beam evaporated MgO magnetic tunnel junctions with CoFeB free layer deposited at different pressure, Journal of Applied Physics, 116, 15, 2014, 153905- | en |
dc.identifier.other | Y | en |
dc.description | PUBLISHED | en |
dc.description.abstract | Electron-beam evaporated MgO-based magnetic tunnel junctions have been fabricated with the
CoFeB free layer deposited at Ar pressure from 1 to 4 mTorr, and their tunneling process has been
studied as a function of temperature and bias voltage. By changing the growth pressure, the junc-
tion dynamic conductance d
I
/d
V
, inelastic electron tunneling spectrum d
2
I
/d
V
2
, and tunneling mag-
netoresistance vary with temperature. Moreover, the low-energy magnon cutoff energy
E
C
derived
from the conductance versus temperature curve agrees with interface magnon energy obtained
directly from the inelastic electron tunneling spectrum, which demonstrates that interface magnons
are involved in the electron tunneling process, opening an additional conductance channel and thus
enhancing the total conductance | en |
dc.description.sponsorship | The work was supported by the State Key Project of Fundamental Research of Ministry of Science and Technology [MOST, No. 2010CB934400], the National Natural Science Foundation [NSFC, Grant Nos. 11374351, 11174341, and 11222432], and Science Foundation Ireland via the NISE project 10/IN.1/13006. | en |
dc.format.extent | 153905 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Journal of Applied Physics | en |
dc.relation.ispartofseries | 116 | en |
dc.relation.ispartofseries | 15 | en |
dc.rights | Y | en |
dc.subject | MgO-based magnetic tunnel junctions | en |
dc.subject.lcsh | MgO-based magnetic tunnel junctions | en |
dc.title | Conductance enhancement due to interface magnons in electron-beam evaporated MgO magnetic tunnel junctions with CoFeB free layer deposited at different pressure | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/abdallm | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/jcoey | en |
dc.identifier.rssinternalid | 100914 | en |
dc.identifier.doi | http://dx.doi.org/10.1063/1.4898683 | en |
dc.rights.ecaccessrights | openAccess | |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.contributor.sponsorGrantNumber | 10/IN.1/13006 | en |
dc.identifier.uri | http://hdl.handle.net/2262/73300 | |