@article{8be41fb18bc7456c987c462b396e7b82,
title = "Controlling spin-dependent tunneling by bandgap tuning in epitaxial rocksalt MgZnO films",
abstract = "Widespread application of magnetic tunnel junctions (MTJs) for information storage has so far been limited by the complicated interplay between tunnel magnetoresistance (TMR) ratio and the product of resistance and junction area (RA). An intricate connection exists between TMR ratio, RA value and the bandgap and crystal structure of the barrier, a connection that must be unravelled to optimise device performance and enable further applications to be developed. Here, we demonstrate a novel method to tailor the bandgap of an ultrathin, epitaxial Zn-doped MgO tunnel barrier with rocksalt structure. This structure is attractive due to its good Δ1 spin filtering effect, and we show that MTJs based on tunable MgZnO barriers allow effective balancing of TMR ratio and RA value. In this way spin-dependent transport properties can be controlled, a key challenge for the development of spintronic devices.",
author = "Li, {D. L.} and Ma, {Q. L.} and Wang, {S. G.} and Ward, {R. C.C.} and T. Hesjedal and Zhang, {X. G.} and A. Kohn and E. Amsellem and G. Yang and Liu, {J. L.} and J. Jiang and Wei, {H. X.} and Han, {X. F.}",
note = "Funding Information: This work was supported by the National Basic Research Program of China (No. 2015CB921401), the Natural Science Foundation of China (No. 51431009, 51471183, 11274371, 11222432, and 11174341), the National Instrumentation Program of China (No. 2012YQ120048), the Instrument Development Program of Chinese Academy of Sciences (No. YZ201345), and China-Israel joint project (No. 2013DFG13020). This publication arises from research funded by the John Fell Oxford University Press Research Fund. We thank A. A. Baker for critically reading the manuscript.",
year = "2014",
month = dec,
day = "2",
doi = "10.1038/srep07277",
language = "אנגלית",
volume = "4",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Research",
}