Single-molecule magnets (SMMs) have been shown to possess bewildering phenomena leading to their proposal in several futuristic applications ranging from data storage devices to the basic unit of quantum computers. The main characteristic for the proposal of SMMs in such schemes is their inherent and intriguing quantum mechanical properties, which in turn, could be exploited in novel devices with larger capacities, such as for data storage or enhanced properties, such as quantum computers. In the quest of SMMs displaying such intriguing quantum effects, herein, we explore the synthesis, structural, and magnetic characterization of a dimeric dysprosium-based SMM composed of a tetradentate Schiff-base ligand with formula [Dy₂(HL)₂(benz)₂(NO₃)₂]. Magnetic studies show that the complex is an SMM, while sub-Kelvin μ-SQUID studies revealed the exchange-bias characteristics of the system attributed to the presence of exchange interaction between the Dy³⁺ pair.

中文翻译：

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镝二聚体中磁化的交换偏置量子隧道

单分子磁铁 (SMM) 已被证明具有令人眼花缭乱的现象，导致它们在从数据存储设备到量子计算机的基本单元等多种未来应用中被提出。在这种方案中提出 SMM 的主要特征是它们固有的和有趣的量子力学特性，而这些特性又可以用于具有更大容量的新型设备，例如用于数据存储或增强特性，例如量子计算机。在寻求显示出如此有趣的量子效应的 SMM 的过程中，我们探索了基于二聚镝的 SMM 的合成、结构和磁性表征，该 SMM 由具有式 [Dy ₂ (HL) ₂ (benz)的四齿席夫碱配体组成₂ (NO ₃) ₂ ]。磁性研究表明该复合物是 SMM，而亚开尔文 μ-SQUID 研究揭示了系统的交换偏倚特性，这归因于 Dy ³⁺对之间存在交换相互作用。