Tetraoxolene-bridged rare-earth complexes: a radical-bridged dinuclear Dy single-molecule magnet

2019 ◽  
Vol 48 (41) ◽  
pp. 15635-15645 ◽  
Author(s):  
William R. Reed ◽  
Maja A. Dunstan ◽  
Robert W. Gable ◽  
Wasinee Phonsri ◽  
Keith S. Murray ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Molecule ◽  
Parent Compound ◽  
Rare Earth Complexes ◽  
Single Molecule Magnet

A radical bromanilate-bridged dinuclear Dy(iii) complex exhibits improved single-molecule magnet performance over the parent compound with a diamagnetic bridge.

Solvent-induced single-molecule magnet behavior and near-infrared luminescence properties of rare earth complexes

2020 ◽  
Vol 44 (44) ◽  
pp. 19135-19143
Author(s):  
Xue-Mei Zhang ◽  
Yao-Yao Duan ◽  
Hong-Ling Gao ◽  
Jian-Zhong Cui
Keyword(s):  
Rare Earth ◽  
Single Molecule ◽  
Near Infrared ◽  
Rare Earth Complexes ◽  
Luminescence Properties ◽  
Single Molecule Magnet ◽  
Infrared Luminescence ◽  
Controlled Crystallization

We demonstrate a route for designing and improving outstanding SMMs by means of a solvent-controlled crystallization.

Single-Molecule-Magnet Behavior and Fluorescence Properties of 8-Hydroxyquinolinate Derivative-Based Rare-Earth Complexes

2016 ◽  
Vol 55 (17) ◽  
pp. 8898-8904 ◽  
Author(s):  
Hong-Ling Gao ◽  
Li Jiang ◽  
Wen-Min Wang ◽  
Shi-Yu Wang ◽  
Hong-Xia Zhang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Molecule ◽  
Rare Earth Complexes ◽  
Fluorescence Properties ◽  
Single Molecule Magnet

Multiple magnetic relaxation processes, magnetocaloric effect and fluorescence properties of rhombus-shaped tetranuclear rare earth complexes

2016 ◽  
Vol 45 (1) ◽  
pp. 253-264 ◽  
Author(s):  
Hong-Ling Gao ◽  
Li Jiang ◽  
Shuang Liu ◽  
Hai-Yun Shen ◽  
Wen-Min Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Magnetocaloric Effect ◽  
Single Molecule ◽  
Energy Barrier ◽  
Magnetic Relaxation ◽  
High Energy ◽  
Rare Earth Complexes ◽  
Relaxation Processes ◽  
Single Molecule Magnet ◽  
High Energy Barrier

A multi-relaxation single-molecule magnet (SMM) of a {Dy4} complex exhibits two distinct relaxation processes, with a high energy barrier of 121 K.

A monometallic tri-spin single-molecule magnet based on rare earth radicals

2009 ◽  
pp. 8489 ◽  
Author(s):  
Na Zhou ◽  
Yue Ma ◽  
Chao Wang ◽  
Gong Feng Xu ◽  
Jin-Kui Tang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Molecule ◽  
Single Molecule Magnet

Single-molecule magnets based on rare earth complexes with chelating benzimidazole-substituted nitronyl nitroxide radicals

2012 ◽  
Vol 41 (48) ◽  
pp. 14651 ◽  
Author(s):  
Peng Hu ◽  
Mei Zhu ◽  
Xuelan Mei ◽  
Haixia Tian ◽  
Yue Ma ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Molecule ◽  
Rare Earth Complexes ◽  
Nitronyl Nitroxide ◽  
Nitroxide Radicals ◽  
Single Molecule Magnets

Sandwich-Type Mixed Tetrapyrrole Rare-Earth Triple-Decker Compounds. Effect of the Coordination Geometry on the Single-Molecule-Magnet Nature

2013 ◽  
Vol 52 (15) ◽  
pp. 8505-8510 ◽  
Author(s):  
Jinglan Kan ◽  
Hailong Wang ◽  
Wei Sun ◽  
Wei Cao ◽  
Jun Tao ◽  
...  
Keyword(s):  
Rare Earth ◽  
Single Molecule ◽  
Coordination Geometry ◽  
Single Molecule Magnet ◽  
Sandwich Type

Indirect Spin-Readout of Rare-Earth-Based Single-Molecule Magnet with Scanning Tunneling Microscopy

2021 ◽  
Vol 127 (12) ◽  
Author(s):  
Timo Frauhammer ◽  
Hongyan Chen ◽  
Timofey Balashov ◽  
Gabriel Derenbach ◽  
Svetlana Klyatskaya ◽  
...  
Keyword(s):  
Rare Earth ◽  
Scanning Tunneling Microscopy ◽  
Single Molecule ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Single Molecule Magnet

Exchange-Biasing in a Dinuclear Dysprosium(III) Single-Molecule Magnet with a Large Energy Barrier for Magnetization Reversal

2019 ◽  
Author(s):  
Tian Han ◽  
Marcus J. Giansiracusa ◽  
Zi-Han Li ◽  
You-Song Ding ◽  
Nicholas F. Chilton ◽  
...  
Keyword(s):  
Single Molecule ◽  
Magnetization Reversal ◽  
Energy Barrier ◽  
Magnetic Hysteresis ◽  
Large Energy ◽  
Magnetic Studies ◽  
Bridging Ligands ◽  
Single Molecule Magnet ◽  
Exchange Biasing

A dichlorido-bridged dinuclear dysprosium(III) single-molecule magnet [Dy<sub>2</sub>L<sub>2</sub>(<i>µ</i>-Cl)<sub>2</sub>(THF)<sub>2</sub>] has been made using a diamine-bis(phenolate) ligand, H<sub>2</sub>L. Magnetic studies show an energy barrier for magnetization reversal (<i>U</i><sub>eff</sub>) around 1000 K. Exchange-biasing effect is clearly seen in magnetic hysteresis with steps up to 4 K. <i>Ab</i> initio calculations exclude the possibility of pure dipolar origin of this effect leading to the conclusion that super-exchange <i>via</i> the chloride bridging ligands is important.

Correlating Blocking Temperatures in Single Molecule Magnets with Raman Relaxation

2018 ◽  
Author(s):  
Marcus J. Giansiracusa ◽  
Andreas Kostopoulos ◽  
George F. S. Whitehead ◽  
David Collison ◽  
Floriana Tuna ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Single Molecule ◽  
Energy Barrier ◽  
Thermal Relaxation ◽  
Relaxation Mechanism ◽  
Blocking Temperature ◽  
Single Molecule Magnets ◽  
Single Molecule Magnet ◽  
Key Parameter

We report a six coordinate DyIII single-molecule magnet<br>(SMM) with an energy barrier of 1110 K for thermal relaxation of<br>magnetization. The sample shows no retention of magnetization<br>even at 2 K and this led us to find a good correlation between the<br>blocking temperature and the Raman relaxation regime for SMMs.<br>The key parameter is the relaxation time (𝜏<sub>switch</sub>) at the point where<br>the Raman relaxation mechanism becomes more important than<br>Orbach.

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