Journal Article10.1021/JACS.6B02638
A Stable Pentagonal Bipyramidal Dy(III) Single-Ion Magnet with a Record Magnetization Reversal Barrier over 1000 K.
Jiang Liu,Yan-Cong Chen,Jun-Liang Liu,Veacheslav Vieru,Liviu Ungur,Liviu Ungur,Jian-Hua Jia,Liviu F. Chibotaru,Yanhua Lan,Wolfgang Wernsdorfer,Song Gao,Xiao-Ming Chen,Ming-Liang Tong +12 more
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TL;DR: Two highly stable and neutral Dy(III) classical coordination compounds with pentagonal bipyramidal local geometry that exhibit SMM behavior are reported.
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Abstract: Single-molecule magnets (SMMs) with a large spin reversal barrier have been recognized to exhibit slow magnetic relaxation that can lead to a magnetic hysteresis loop. Synthesis of highly stable SMMs with both large energy barriers and significantly slow relaxation times is challenging. Here, we report two highly stable and neutral Dy(III) classical coordination compounds with pentagonal bipyramidal local geometry that exhibit SMM behavior. Weak intermolecular interactions in the undiluted single crystals are first observed for mononuclear lanthanide SMMs by micro-SQUID measurements. The investigation of magnetic relaxation reveals the thermally activated quantum tunneling of magnetization through the third excited Kramers doublet, owing to the increased axial magnetic anisotropy and weaker transverse magnetic anisotropy. As a result, pronounced magnetic hysteresis loops up to 14 K are observed, and the effective energy barrier (Ueff = 1025 K) for relaxation of magnetization reached a breakthrough among the SMMs.
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Citations
Levamisole based Co(II) Single‐Ion Magnet
Soumava Biswas,Lubomir Havlíček,Ivan Němec,Ivan Šalitroš,Leena Mandal,Petr Neugebauer,Senthil Kumar Kuppusamy,Mario Ruben +7 more
TL;DR: A new Co(II) single-ion magnet based on levamisole exhibits strong intramolecular interactions and prominent SIM behavior.
A perfect triangular dysprosium single-molecule magnet with virtually antiparallel Ising-like anisotropy
Guang Lu,Yang Liu,Wei Deng,Guo-Zhang Huang,Yan-Cong Chen,Jun-Liang Liu,Zhao-Ping Ni,Marcus J. Giansiracusa,Nicholas F. Chilton,Ming-Liang Tong +9 more
TL;DR: A trinuclear dysprosium single-molecule magnet, [Dy3(μ3-CO3)(Clbbpen)3](CF3SO3)·6MeCN, was reported in this paper.
The slow magnetic relaxation regulated by the coordination, configuration and intermolecular dipolar field in two mononuclear DyIII single-molecule magnets (SMMs)
TL;DR: The syntheses, structures and magnetic properties of two mononuclear DyIII SMMs are reported and the energies of the first excited state (KD1) are indeed close to the experimental relaxation energy barrier (Ueff) under zero dc field, which also reveals the typical features associated with the SMM behavior.
Slow magnetic relaxation in a {EuCu5} metallacrown.
Jin Wang,Ze-Yu Ruan,Quan-Wen Li,Yan-Cong Chen,Guo-Zhang Huang,Jun-Liang Liu,Daniel Reta,Nicholas F. Chilton,Zhenxing Wang,Ming-Liang Tong +9 more
TL;DR: This complex shows field-induced slow magnetic relaxation via a Raman-like process, where the Eu III ion enhances the relaxation rates of the {Cu5} unit which likely arises from second-order effects in the formally diamagnetic 7F0 ground state of EuIII.
Designing a Dy2 Single-Molecule Magnet with Two Well-Differentiated Relaxation Processes by Using a Nonsymmetric Bis-bidentate Bipyrimidine- N-Oxide Ligand: A Comparison with Mononuclear Counterparts
Ismael F. Díaz-Ortega,Juan Manuel Herrera,Daniel Aravena,Eliseo Ruiz,Tulika Gupta,Gopalan Rajaraman,Hiroyuki Nojiri,Enrique Colacio +7 more
TL;DR: Pulse magnetization measurements reveal that the dinuclear and mononuclear complexes exhibit hysteresis loops with double- and single-step structures, respectively, thus supporting their SMM behavior.
References
A short history of SHELX
TL;DR: This paper could serve as a general literature citation when one or more of the open-source SH ELX programs (and the Bruker AXS version SHELXTL) are employed in the course of a crystal-structure determination.
Dispersion and Absorption in Dielectrics I. Alternating Current Characteristics
Kenneth S. Cole,Robert H. Cole +1 more
TL;DR: In this paper, the locus of the dielectric constant in the complex plane was defined to be a circular arc with end points on the axis of reals and center below this axis.
9.5K
Magnetic bistability in a metal-ion cluster
TL;DR: In this article, it was shown that the magnetization of the Mn12 cluster is highly anisotropic and the magnetisation relaxation time becomes very long below a temperature of 4 K, giving rise to pronounced hysteresis.
3.4K
Molecular spintronics using single-molecule magnets
Lapo Bogani,Wolfgang Wernsdorfer +1 more
TL;DR: This work reviews the first progress in the resulting field, molecular spintronics, which will enable the manipulation of spin and charges in electronic devices containing one or more molecules, and discusses the advantages over more conventional materials, and the potential applications in information storage and processing.
3.1K
Quantum computing in molecular magnets
TL;DR: In this article, an implementation of Grover's algorithm that uses molecular magnets was proposed, which can be used to build dense and efficient memory devices based on the Grover algorithm, in which one single crystal can serve as a storage unit of a dynamic random access memory device.
2.8K