Pseudo-tetrahedral vs pseudo-octahedral ErIII single molecule magnets and the disruptive role of coordinated TEMPO radicals

2021 ◽  
Author(s):  
Maria Brzozowska ◽  
Gabriela Handzlik ◽  
Katarzyna Kurpiewska ◽  
Mikolaj Zychowicz ◽  
Dawid Pinkowicz
Keyword(s):  
Single Molecule ◽  
High Performance ◽  
Single Molecule Magnets

ErIII complexes are potential candidates for high-performance single molecule magnets (SMMs) just after DyIII. Herein, we thoroughly explore the under-represented class of neutral pseudo-tetrahedral ErIII SMMs and demonstrate their exceptional...

scholarly journals Pseudo-Tetrahedral vs Pseudo-Octahedral ErIII Single Molecule Magnets and the 'Disruptive' Role of Coordinated TEMPO Radicals

2021 ◽  
Author(s):  
Maria Brzozowska ◽  
Gabriela Handzlik ◽  
Katarzyna Kurpiewska ◽  
Mikołaj Zychowicz ◽  
Dawid Pinkowicz
Keyword(s):  
Single Molecule ◽  
High Performance ◽  
Magnetic Hysteresis ◽  
Magnetic Hysteresis Loop ◽  
Relaxation Mechanism ◽  
Magnetic Memory ◽  
Single Molecule Magnets ◽  
Magnetization Relaxation ◽  
Tempo Radical

Erbium(III) complexes are the most interesting candidates for high-performance single molecule magnets (SMMs) just after dysprosium(III). Herein, we thoroughly explore the underrepresented class of neutral pseudo-tetrahedral erbium(III) SMMs and demonstrate their exceptional slow magnetization dynamics controlled by the Raman relaxation mechanism and the molecular magnetic memory effect in the form of a waist-restricted magnetic hysteresis loop. The influence of the coordinated TEMPO radical on the slow magnetization relaxation performance is also demonstrated and discussed.<br>

scholarly journals Pseudo-Tetrahedral vs Pseudo-Octahedral ErIII Single Molecule Magnets and the 'Disruptive' Role of Coordinated TEMPO Radicals

2021 ◽  
Author(s):  
Maria Brzozowska ◽  
Gabriela Handzlik ◽  
Katarzyna Kurpiewska ◽  
Mikołaj Zychowicz ◽  
Dawid Pinkowicz
Keyword(s):  
Single Molecule ◽  
High Performance ◽  
Magnetic Hysteresis ◽  
Magnetic Hysteresis Loop ◽  
Relaxation Mechanism ◽  
Magnetic Memory ◽  
Single Molecule Magnets ◽  
Magnetization Relaxation ◽  
Tempo Radical

Erbium(III) complexes are the most interesting candidates for high-performance single molecule magnets (SMMs) just after dysprosium(III). Herein, we thoroughly explore the underrepresented class of neutral pseudo-tetrahedral erbium(III) SMMs and demonstrate their exceptional slow magnetization dynamics controlled by the Raman relaxation mechanism and the molecular magnetic memory effect in the form of a waist-restricted magnetic hysteresis loop. The influence of the coordinated TEMPO radical on the slow magnetization relaxation performance is also demonstrated and discussed.<br>

The localized electron: magnetic properties

2018 ◽  
Author(s):  
Jean-Pierre Launay ◽  
Michel Verdaguer
Keyword(s):  
Single Molecule ◽  
Model Systems ◽  
Ferromagnetic Coupling ◽  
Single Chain ◽  
Single Molecule Magnets ◽  
Magnetic Systems ◽  
Orbital Interactions ◽  
Prussian Blue Analogues ◽  
Mononuclear Complexes

After preliminaries about electron properties, and definitions in magnetism, one treats the magnetism of mononuclear complexes, in particular spin cross-over, showing the role of cooperativity and the sensitivity to external perturbations. Orbital interactions and exchange interaction are explained in binuclear model systems, using orbital overlap and orthogonality concepts to explain antiferromagnetic or ferromagnetic coupling. The phenomenologically useful Spin Hamiltonian is defined. The concepts are then applied to extended molecular magnetic systems, leading to molecular magnetic materials of various dimensionalities exhibiting bulk ferro- or ferrimagnetism. An illustration is provided by Prussian Blue analogues. Magnetic anisotropy is introduced. It is shown that in some cases, a slow relaxation of magnetization arises and gives rise to appealing single-ion magnets, single-molecule magnets or single-chain magnets, a route to store information at the molecular level.

scholarly journals Mn12 single molecule magnets deposited on μ-SQUID sensors: the role of interphases and structural modifications

Nanoscale ◽  
2013 ◽  
Vol 5 (24) ◽  
pp. 12565 ◽  
Author(s):  
Elena Bellido ◽  
Pablo González-Monje ◽  
Ana Repollés ◽  
Mark Jenkins ◽  
Javier Sesé ◽  
...  
Keyword(s):  
Single Molecule ◽  
Single Molecule Magnets ◽  
Structural Modifications

Emerging Trends on Designing High-Performance Dysprosium(III) Single-Molecule Magnets

2022 ◽  
pp. 307-319
Author(s):  
Tesfay G. Ashebr ◽  
Hui Li ◽  
Xu Ying ◽  
Xiao-Lei Li ◽  
Chen Zhao ◽  
...  
Keyword(s):  
Single Molecule ◽  
High Performance ◽  
Single Molecule Magnets ◽  
Emerging Trends

scholarly journals Role of π-Radicals in the Spin Connectivity of Clusters and Networks of Tb Double-Decker Single Molecule Magnets

ACS Nano ◽  
2017 ◽  
Vol 11 (11) ◽  
pp. 10750-10760 ◽  
Author(s):  
Anis Amokrane ◽  
Svetlana Klyatskaya ◽  
Mauro Boero ◽  
Mario Ruben ◽  
Jean-Pierre Bucher
Keyword(s):  
Single Molecule ◽  
Single Molecule Magnets ◽  
Double Decker
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