arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2409.01982cond-mat.mes-hallphysics.chem-ph
收藏

分子纳米磁体中量子自旋-电耦合的化学调控

Chemical tuning of quantum spin-electric coupling in molecular nanomagnets

Mikhail V. Vaganov, Nicolas Suaud, Francois Lambert, Benjamin Cahier, Christian Herrero, Regis Guillot, Anne-Laure Barra, Nathalie Guihery, Talal Mallah, Arzhan… 展开作者

Mikhail V. Vaganov, Nicolas Suaud, Francois Lambert, Benjamin Cahier, Christian Herrero, Regis Guillot, Anne-Laure Barra, Nathalie Guihery, Talal Mallah, Arzhang Ardavan, Junjie Liu

AI总结:

本文通过化学工程在含 Mn(II) 的三角双锥分子中系统调控自旋-电耦合,揭示 C3 对称性下电偶极矩与磁各向异性的关联,为电控分子自旋量子比特设计提供指导。

摘要:

利用电场而非磁场控制量子自旋,有望为量子技术的发展带来显著的架构优势。在此背景下,分子纳米磁体中的自旋可通过合理的化学设计实现对自旋-电耦合(SEC)的调控。本文展示了一类含 Mn(II) 分子中 SEC 的系统性控制方法。具有 C3 对称性的三角双锥(tbp)分子结构产生了显著的分子电偶极矩,该电偶极矩与其磁各向异性直接相关。这两种特性之间的相互作用导致了实验上观测到的显著 SEC,并可通过波函数理论计算加以合理解释。我们的发现为开发用于量子技术的电可控分子自旋量子比特提供了策略指导。

英文摘要:

Controlling quantum spins using electric rather than magnetic fields promises significant architectural advantages for developing quantum technologies. In this context, spins in molecular nanomagnets offer tunability of spin-electric couplings (SEC) by rational chemical design. Here we demonstrate systematic control of SECs in a family of Mn(II)-containing molecules via chemical engineering. The trigonal bipyramidal (tbp) molecular structure with C3 symmetry leads to a significant molecular electric dipole moment that is directly connected to its magnetic anisotropy. The interplay between these two features gives rise to significant experimentally observed SECs, which can be rationalised by wavefunction theoretical calculations. Our findings guide strategies for the development of electrically controllable molecular spin qubits for quantum technologies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑