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 ◽  
...  
Author(s):  
Jean-Pierre Launay ◽  
Michel Verdaguer

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.


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

2016 ◽  
Vol 45 (22) ◽  
pp. 9336-9344 ◽  
Author(s):  
Sihuai Chen ◽  
Valeriu Mereacre ◽  
Christopher E. Anson ◽  
Annie K. Powell

First heterometallic GaIII–DyIII single-molecule magnets have been synthesized and the role of the GaIII in extracting FeIII–DyIII interaction has been assessed.


2021 ◽  
Author(s):  
Maria Brzozowska ◽  
Gabriela Handzlik ◽  
Katarzyna Kurpiewska ◽  
Mikołaj Zychowicz ◽  
Dawid Pinkowicz

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>


Author(s):  
Maria Brzozowska ◽  
Gabriela Handzlik ◽  
Katarzyna Kurpiewska ◽  
Mikolaj Zychowicz ◽  
Dawid Pinkowicz

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...


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