Negative differential resistance and hysteresis through an organometallic molecule from molecular-level crossing.
Analogous to a quantum double-dot system, diblock structured molecules could also show negative differential resistance (NDR). Using combined density functional theory and nonequilibrium Green function technique, we show that molecular-level crossing in a molecular double-dot system containing cobaltocene and ferrocene leads to NDR and hysteresis.
Liu, R; Ke, S-H; Baranger, HU; Yang, W
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