Data availability
The data that support the plots in this paper and other findings of this study are available from the corresponding authors upon reasonable request. The scientific colour maps developed by Crameri et al. 67 are used in this study to prevent visual distortion of the data and exclusion of readers with colour vision deficiencies 68 . Source data are provided with this paper.
References
Moodera, J. S., Kinder, L. R., Wong, T. M. & Meservey, R. Large magnetoresistance at room temperature in ferromagnetic thin film tunnel junctions. Phys. Rev. Lett. 74 , 3273–3276 (1995).
Article ADS CAS PubMed Google Scholar
Miyazaki, T. & Tezuka, N. Giant magnetic tunneling effect in Fe/Al 2 O 3 /Fe junction. J. Magn. Magn. Mater. 139 , L231–L234 (1995).
Article ADS CAS Google Scholar
Tsymbal, E. Y., Mryasov, O. N. & LeClair, P. R. Spin-dependent tunnelling in magnetic tunnel junctions. J. Phys. Condens. Matter 15 , R109–R142 (2003).
Article ADS CAS Google Scholar
Parkin, S. S. et al.…