Spin-Transfer Torque Switching at Ultra Low Current Densities

Leutenantsmeyer JC, Zbarsky V, von der Ehe M, Wittrock S, Peretzki P, Schuhmann H, Thomas A, Rott K, Reiss G, Kim TH, Seibt M, et al. (2015)
MATERIALS TRANSACTIONS 56(9): 1323-1326.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Leutenantsmeyer, Johannes Christian; Zbarsky, Vladyslav; von der Ehe, Marvin; Wittrock, Steffen; Peretzki, Patrick; Schuhmann, Henning; Thomas, AndyUniBi ; Rott, KarstenUniBi; Reiss, GünterUniBi ; Kim, Tae Hee; Seibt, Michael; Muenzenberg, Markus
Alle
Abstract / Bemerkung
The influence of the tantalum buffer layer on the magnetic anisotropy of perpendicular Co-Fe-B/MgO based magnetic tunnel junctions is studied using magneto-optical Kerr-spectroscopy. Samples without a tantalum buffer are found to exhibit no perpendicular magnetization. The transport of boron into the tantalum buffer is considered to play an important role on the switching currents of those devices. With the optimized layer stack of a perpendicular tunnel junction, a minimal critical switching current density of only 9.3 kA/cm(2) is observed and the thermally activated switching probability distribution is discussed.
Stichworte
current induced switching; spintransport; spin-transfer torque; Neel-Brown law; magnetic; tunnel junctions; perpendicular anisotropy
Erscheinungsjahr
2015
Zeitschriftentitel
MATERIALS TRANSACTIONS
Band
56
Ausgabe
9
Seite(n)
1323-1326
ISSN
1345-9678
Page URI
https://pub.uni-bielefeld.de/record/2786413

Zitieren

Leutenantsmeyer JC, Zbarsky V, von der Ehe M, et al. Spin-Transfer Torque Switching at Ultra Low Current Densities. MATERIALS TRANSACTIONS. 2015;56(9):1323-1326.
Leutenantsmeyer, J. C., Zbarsky, V., von der Ehe, M., Wittrock, S., Peretzki, P., Schuhmann, H., Thomas, A., et al. (2015). Spin-Transfer Torque Switching at Ultra Low Current Densities. MATERIALS TRANSACTIONS, 56(9), 1323-1326. doi:10.2320/matertrans.MA201570
Leutenantsmeyer, J. C., Zbarsky, V., von der Ehe, M., Wittrock, S., Peretzki, P., Schuhmann, H., Thomas, A., Rott, K., Reiss, G., Kim, T. H., et al. (2015). Spin-Transfer Torque Switching at Ultra Low Current Densities. MATERIALS TRANSACTIONS 56, 1323-1326.
Leutenantsmeyer, J.C., et al., 2015. Spin-Transfer Torque Switching at Ultra Low Current Densities. MATERIALS TRANSACTIONS, 56(9), p 1323-1326.
J.C. Leutenantsmeyer, et al., “Spin-Transfer Torque Switching at Ultra Low Current Densities”, MATERIALS TRANSACTIONS, vol. 56, 2015, pp. 1323-1326.
Leutenantsmeyer, J.C., Zbarsky, V., von der Ehe, M., Wittrock, S., Peretzki, P., Schuhmann, H., Thomas, A., Rott, K., Reiss, G., Kim, T.H., Seibt, M., Muenzenberg, M.: Spin-Transfer Torque Switching at Ultra Low Current Densities. MATERIALS TRANSACTIONS. 56, 1323-1326 (2015).
Leutenantsmeyer, Johannes Christian, Zbarsky, Vladyslav, von der Ehe, Marvin, Wittrock, Steffen, Peretzki, Patrick, Schuhmann, Henning, Thomas, Andy, Rott, Karsten, Reiss, Günter, Kim, Tae Hee, Seibt, Michael, and Muenzenberg, Markus. “Spin-Transfer Torque Switching at Ultra Low Current Densities”. MATERIALS TRANSACTIONS 56.9 (2015): 1323-1326.