title: Coherent manipulation of electron spins in the {Cu3} spin triangle complex impregnated in nanoporous silicon.
abstract: We report on coherent manipulation of electron spins in an antiferromagnetically coupled spin triangle {Cu3-X} (X=As, Sb) impregnated in freestanding nanoporous silicon (NS) by using 240 GHz microwave pulses. Rabi oscillations are observed and the spin coherence time is found to be T(2)=1066 ns at 1.5 K. This demonstrates that the {Cu3-X}:NS hybrid material provides a promising scheme for implementing spin-based quantum gates. By measuring the spin relaxation times of samples with different symmetries and environments we give evidence that a spin chirality is the main decoherence source of spin triangle molecules.
authors.affiliation: Department of Physics, Chung-Ang University, Seoul, Republic of Korea. kchoi@cau.ac.kr
authors.forename: K-Y
authors.initials: KY
authors.lastname: Choi
authors.forename: Z
authors.initials: Z
authors.lastname: Wang
authors.forename: H
authors.initials: H
authors.lastname: Nojiri
authors.forename: J
authors.initials: J
authors.lastname: van Tol
authors.forename: P
authors.initials: P
authors.lastname: Kumar
authors.forename: P
authors.initials: P
authors.lastname: Lemmens
authors.forename: B S
authors.initials: BS
authors.lastname: Bassil
authors.forename: U
authors.initials: U
authors.lastname: Kortz
authors.forename: N S
authors.initials: NS
authors.lastname: Dalal