scholarly journals Equal-interval splitting of quantum tunneling in single-molecule magnets with identical exchange coupling

2014 ◽  
Vol 89 (18) ◽  
Author(s):  
Yan-Rong Li ◽  
Rui-Yuan Liu ◽  
Hai-Qing Liu ◽  
Yun-Ping Wang
Keyword(s):  
Single Molecule ◽  
Quantum Tunneling ◽  
Exchange Coupling ◽  
Single Molecule Magnets ◽  
Equal Interval

scholarly journals Heterometallic CuII/DyIII 1D chiral polymers: chirogenesis and exchange coupling of toroidal moments in trinuclear Dy3 single molecule magnets

2012 ◽  
Vol 3 (4) ◽  
pp. 1169 ◽  
Author(s):  
Ghenadie Novitchi ◽  
Guillaume Pilet ◽  
Liviu Ungur ◽  
Victor V. Moshchalkov ◽  
Wolfgang Wernsdorfer ◽  
...  
Keyword(s):  
Single Molecule ◽  
Exchange Coupling ◽  
Single Molecule Magnets ◽  
Chiral Polymers

Ligand-Driven Exchange Coupling in ${\rm Mn}_{4}$ Single-Molecule Magnets

2011 ◽  
Vol 47 (10) ◽  
pp. 2429-2432 ◽  
Author(s):  
Nguyen Anh Tuan ◽  
Ngo Thanh Tam ◽  
Nguyen Huy Sinh ◽  
Dam Hieu Chi
Keyword(s):  
Single Molecule ◽  
Exchange Coupling ◽  
Single Molecule Magnets

Single-Molecule Magnets:  A Large Mn30Molecular Nanomagnet Exhibiting Quantum Tunneling of Magnetization

2004 ◽  
Vol 126 (7) ◽  
pp. 2156-2165 ◽  
Author(s):  
Monica Soler ◽  
Wolfgang Wernsdorfer ◽  
Kirsten Folting ◽  
Maren Pink ◽  
George Christou
Keyword(s):  
Single Molecule ◽  
Quantum Tunneling ◽  
Single Molecule Magnets ◽  
Quantum Tunneling Of Magnetization

scholarly journals Computational Design of Mn4 Molecules with Strong Intramolecular Exchange Coupling

2011 ◽  
Vol 21 (2) ◽  
pp. 137
Author(s):  
Nguyen Anh Tuan ◽  
Nguyen Van Thanh ◽  
Tran Thi Thuy Nu ◽  
Nguyen Huy Sinh ◽  
Vu Van Khai ◽  
...  
Keyword(s):  
High Spin ◽  
Single Molecule ◽  
First Principles ◽  
Electronic Structures ◽  
Exchange Coupling ◽  
Computational Design ◽  
First Principles Calculations ◽  
Single Molecule Magnets ◽  
Intramolecular Exchange ◽  
Ferrimagnetic Structure

The geometric and electronic structures of [Mn44+Mn3+3(µ3-L2 -)3(µ3-X -(OAc) - 3(dbm) -3] (L = O, X = F, dbmH = dibenzoyl-methane) molecule has been studied by first-principles calculations. It was shown in our previous paper that the ferrimagnetic structure of Mn$^{4 + }$Mn$^{3 + }_{3}$ molecules is determined by the $\pi $ type hybridization between the $d_{z^2}$ orbitals at the three high-spin Mn$^{3 + }$ ions and the $t_{2g}$ orbitals at the Mn$^{4 + }$ ion by the $p$ orbitals at the $\mu _{3}$-L$^{2 - }$ ions. To design new Mn$^{4 + }$Mn$^{3 + }_{3}$ molecules having much more stable ferrimagnetic state, one approach is suggested. That is controlling the Mn$^{4 + }$-($\mu _{3}$-L$^{2 - })$-Mn$^{3 + }$ exchange pathways by rational variation in $\mu _{3}$-L ligands to strengthen the hybridization between Mn ions. By this ligand variation, $J_{AB}$ can be enhanced by a factor of 3. Our results should facilitate the rational synthesis of new single-molecule magnets.

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