1. Nonlocal Transistor Based on Pure Crossed Andreev Reflection in a EuO-Graphene/Superconductor Device
Yee Sin Ang, L. K. Ang, Chao Zhang, Zhongshui Ma
POSTER 70

2. S Potentials of Crossed Andreev Reflection Cooper pair splitter
Superconductor
Superconductor
Normal
Normal
Normal
Local Andreev reflection
Crossed Andreev reflection
A. F. Andreev, J. Expt. Theor. Phys. 19, 1228 (1964) S N1 N2
Potentials of Crossed Andreev Reflection
Cooper pair splitter
Probe fundamental physics – Bell’s theorem
Spintronics
Building block of solid-state quantum computing
J. M. Byers et al, Phys. Rev. Lett. 74, 306 (1995)
E. Prada et al, Eur. Phys. J. B 40, 379 (2004)
Cooper pair splitter

3. Challenges: Requires precise tuning of Fermi levels and bais voltage
𝑒𝑉=𝜇
𝐸 𝐹 =−𝜇
𝐸 𝐹 =𝜇 X  S AR EC
CAR
𝐸 𝐹 = 𝐸 𝑣  
𝐸 𝐹 = 𝐸 𝑐  
Dirac point blocking
Bandgap blocking
Graphene
Semiconductor
J. Cayssol, Phys. Rev. Lett. 100, (2008)
M. Veldhorst et al, Phys. Rev. Lett. 105, (2010)
Challenges: Requires precise tuning of Fermi levels and bais voltage
Pure crossed Andreev reflection in a spin-split and gapped energy dispersion
Y. S. Ang et al, Phys. Rev. B 93, (R) (2016)

4. Poster 70 – Nonlocal Transistor Based on Pure Crossed Andreev Reflection in a EuO-Graphene/Superconductor Device