scholarly journals Bias-dependent spin injection into graphene on YIG through bilayer hBN tunnel barriers

2018 ◽  
Vol 98 (12) ◽  
Author(s):  
Johannes Christian Leutenantsmeyer ◽  
Tian Liu ◽  
Mallikarjuna Gurram ◽  
Alexey A. Kaverzin ◽  
Bart J. van Wees
2012 ◽  
Vol 2012 ◽  
pp. 1-13 ◽  
Author(s):  
S. P. Dash ◽  
D. Goll ◽  
P. Kopold ◽  
H. D. Carstanjen

In order to obtain high spin injection efficiency, a ferromagnet-semiconducor Schottky contact must be of high crystalline quality. This is particularly important in the case of ferromagnet-silicon interfaces, since these elements tend to mix and form silicides. In this study Co-Si (100) interfaces were prepared in three different ways: by evaporation at room temperature, low temperature (), and with Sb as surfactant, and their interface structures were analyzed by high-resolution RBS (HRBS). In all cases more or less strong in-diffusion of Co with subsequent silicide formation was observed. In order to prevent the mixing of Co and Si, ultra thin MgO tunnel barriers were introduced in-between them. In situ HRBS characterization confirms that the MgO films were very uniform and prevented the mixing of the Si substrate with deposited Co and Fe films effectively, even at .


2002 ◽  
Vol 81 (10) ◽  
pp. 1815-1817 ◽  
Author(s):  
A. T. Filip ◽  
P. LeClair ◽  
C. J. P. Smits ◽  
J. T. Kohlhepp ◽  
H. J. M. Swagten ◽  
...  

2012 ◽  
Vol 7 (11) ◽  
pp. 737-742 ◽  
Author(s):  
O. M. J. van 't Erve ◽  
A. L. Friedman ◽  
E. Cobas ◽  
C. H. Li ◽  
J. T. Robinson ◽  
...  

Nano Letters ◽  
2013 ◽  
Vol 13 (2) ◽  
pp. 430-435 ◽  
Author(s):  
Shixiong Zhang ◽  
Shadi A. Dayeh ◽  
Yan Li ◽  
Scott A. Crooker ◽  
Darryl L. Smith ◽  
...  

2010 ◽  
Vol 97 (9) ◽  
pp. 092502 ◽  
Author(s):  
B. Dlubak ◽  
P. Seneor ◽  
A. Anane ◽  
C. Barraud ◽  
C. Deranlot ◽  
...  

2018 ◽  
Vol 124 (19) ◽  
pp. 194301 ◽  
Author(s):  
Johannes Christian Leutenantsmeyer ◽  
Josep Ingla-Aynés ◽  
Mallikarjuna Gurram ◽  
Bart J. van Wees

2009 ◽  
Vol 94 (12) ◽  
pp. 122510 ◽  
Author(s):  
Andreas Vogel ◽  
Jeannette Wulfhorst ◽  
Guido Meier

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