A Heterometallic Porphyrin Dimer as a Potential Quantum Gate: Magneto‐Structural Correlations and Spin Coherence Properties DOI Creative Commons
Davide Ranieri, Alberto Privitera, Fabio Santanni

и другие.

Angewandte Chemie, Год журнала: 2023, Номер 135(48)

Опубликована: Окт. 9, 2023

Abstract In the development of two‐qubit quantum gates, precise control over intramolecular spin‐spin interaction between molecular spin units plays a pivotal role. A weak but measurable exchange coupling is especially important for achieving selective addressability that allows controlled manipulation computational basis states |00⟩ |01⟩ |10⟩ |11⟩ by microwave pulses. Here, we report synthesis and Electron Paramagnetic Resonance (EPR) study heterometallic meso‐meso (m‐m) singly‐linked V IV O−Cu II porphyrin dimer. X‐band continuous wave EPR measurements in frozen solutions suggest ferromagnetic ca. 8 ⋅ 10 −3 cm −1 . This estimation supported Density Functional Theory calculations, which also allow disentangling ferro‐ antiferromagnetic contributions to exchange. Pulsed experiments show dimer maintains relaxation times similar monometallic Cu porphyrins. The two individual spins made possible different g ‐tensors ‐ions, contrast homometallic dimers where tilting planes key Therefore, single‐spin can be maintained even with small angles, as expected when deposited on surface, unlocking full potential gates practical applications.

Язык: Английский

A Heterometallic Porphyrin Dimer as a Potential Quantum Gate: Magneto‐Structural Correlations and Spin Coherence Properties DOI Creative Commons
Davide Ranieri, Alberto Privitera, Fabio Santanni

и другие.

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(48)

Опубликована: Окт. 9, 2023

Abstract In the development of two‐qubit quantum gates, precise control over intramolecular spin‐spin interaction between molecular spin units plays a pivotal role. A weak but measurable exchange coupling is especially important for achieving selective addressability that allows controlled manipulation computational basis states |00⟩ |01⟩ |10⟩ |11⟩ by microwave pulses. Here, we report synthesis and Electron Paramagnetic Resonance (EPR) study heterometallic meso‐meso (m‐m) singly‐linked V IV O−Cu II porphyrin dimer. X‐band continuous wave EPR measurements in frozen solutions suggest ferromagnetic ca. 8 ⋅ 10 −3 cm −1 . This estimation supported Density Functional Theory calculations, which also allow disentangling ferro‐ antiferromagnetic contributions to exchange. Pulsed experiments show dimer maintains relaxation times similar monometallic Cu porphyrins. The two individual spins made possible different g ‐tensors ‐ions, contrast homometallic dimers where tilting planes key Therefore, single‐spin can be maintained even with small angles, as expected when deposited on surface, unlocking full potential gates practical applications.

Язык: Английский

Процитировано

14
A Heterometallic Porphyrin Dimer as a Potential Quantum Gate: Magneto‐Structural Correlations and Spin Coherence Properties DOI Creative Commons
Davide Ranieri, Alberto Privitera, Fabio Santanni

и другие.

Angewandte Chemie, Год журнала: 2023, Номер 135(48)

Опубликована: Окт. 9, 2023

Abstract In the development of two‐qubit quantum gates, precise control over intramolecular spin‐spin interaction between molecular spin units plays a pivotal role. A weak but measurable exchange coupling is especially important for achieving selective addressability that allows controlled manipulation computational basis states |00⟩ |01⟩ |10⟩ |11⟩ by microwave pulses. Here, we report synthesis and Electron Paramagnetic Resonance (EPR) study heterometallic meso‐meso (m‐m) singly‐linked V IV O−Cu II porphyrin dimer. X‐band continuous wave EPR measurements in frozen solutions suggest ferromagnetic ca. 8 ⋅ 10 −3 cm −1 . This estimation supported Density Functional Theory calculations, which also allow disentangling ferro‐ antiferromagnetic contributions to exchange. Pulsed experiments show dimer maintains relaxation times similar monometallic Cu porphyrins. The two individual spins made possible different g ‐tensors ‐ions, contrast homometallic dimers where tilting planes key Therefore, single‐spin can be maintained even with small angles, as expected when deposited on surface, unlocking full potential gates practical applications.

Язык: Английский

Процитировано

2