Spin Switching in Single Wall Carbon Nanotubes Quantized Conduction Resolved Objective: Long coherence lengths in SWCNTs offer unique opportunities for.

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Presentation transcript:

Spin Switching in Single Wall Carbon Nanotubes Quantized Conduction Resolved Objective: Long coherence lengths in SWCNTs offer unique opportunities for spintronics Use spin-orbit coupling for spin manipulation Approach: Large scale bottom up modeling using atomic orbitals up 20 µm in length SWCNT (10,0) more than 3 million atomic orbitals A Rapid-Recursive Greens Function (RGF) algorithm is developed Impact: Demonstrated spin control and switching due to spin-orbit coupling effects Strongly energy dependent 100% spin modulation (switching) predicted at quantized conduction limit SINGLE CHANNEL SPIN INJECTION TOTAL CONDUCTANCE (10,0) SW-CNT SPIN RESOLVED CONDUCTANCE total conductance 100% Spin Modulation (1st plateu) spin-up channel spin-down channel Mode Mixing (2nd plateu) spin-up channel spin-down channel Ahmet Ali Yanik