scholarly journals Strong direct exchange coupling and single-molecule magnetism in indigo-bridged lanthanide dimers

2017 ◽  
Vol 53 (21) ◽  
pp. 3130-3133 ◽  
Author(s):  
Fu-Sheng Guo ◽  
Richard A. Layfield
Keyword(s):  
Single Molecule ◽  
Exchange Coupling ◽  
Coupling Constants ◽  
Single Molecule Magnet ◽  
Direct Exchange ◽  
Gadolinium Compound

The first lanthanide–indigo complexes are described, including a dysprosium single-molecule magnet and one of the strongest exchange coupling constants measured in a gadolinium compound.

A density functional theory approach to the magnetic properties of a coupled single-molecule magnet (Mn7)2 complex — An entangled qubit pair candidate

2013 ◽  
Vol 91 (9) ◽  
pp. 866-871 ◽  
Author(s):  
Silvia Gómez-Coca ◽  
Eliseo Ruiz
Keyword(s):  
Density Functional Theory ◽  
Single Molecule ◽  
Exchange Coupling ◽  
Density Functional ◽  
Relative Strength ◽  
Coupling Constants ◽  
Basis Set ◽  
Theory Approach ◽  
Functional Theory ◽  
Spin Configuration

The exchange coupling constants of a Mn14 complex constituted by two weakly coupled Mn7 moieties were calculated using two different density functional theory (DFT) approaches: the Perdew–Burke–Ernzerhof (PBE) functional with a numerical basis set and the hybrid Becke, three-parameter Lee–Yang–Parr (B3LYP) functional employed with a Gaussian basis set. The sign and relative strength of the exchange coupling constants calculated with both methods were consistent; as expected, the values calculated with the PBE functional were slightly overestimated, as corroborated by comparison with the experimental magnetic susceptibility curve. Both methods gave a ground spin configuration of S = 3/2 for the Mn7 moiety, which was weakly antiferromagnetically coupled with the other Mn7 fragment, leading to an S = 0 ground spin configuration for the entire Mn14 complex.

Structural influences on the exchange coupling and zero-field splitting in the single-molecule magnet [MnIII6MnIII]3+

2012 ◽  
Vol 41 (41) ◽  
pp. 12942 ◽  
Author(s):  
Veronika Hoeke ◽  
Maik Heidemeier ◽  
Erich Krickemeyer ◽  
Anja Stammler ◽  
Hartmut Bögge ◽  
...  
Keyword(s):  
Single Molecule ◽  
Exchange Coupling ◽  
Zero Field ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Single Molecule Magnet

An Azophenine Radical-Bridged Fe2 Single-Molecule Magnet with Record Magnetic Exchange Coupling

2013 ◽  
Vol 135 (45) ◽  
pp. 16845-16848 ◽  
Author(s):  
Ie-Rang Jeon ◽  
Jesse G. Park ◽  
Dianne J. Xiao ◽  
T. David Harris
Keyword(s):  
Single Molecule ◽  
Exchange Coupling ◽  
Magnetic Exchange ◽  
Single Molecule Magnet ◽  
Magnetic Exchange Coupling

Weak exchange coupling effects leading to fast magnetic relaxations in a trinuclear dysprosium single-molecule magnet

2020 ◽  
Vol 7 (2) ◽  
pp. 447-454 ◽  
Author(s):  
Yin-Shan Meng ◽  
Yu-Sen Qiao ◽  
Mu-Wen Yang ◽  
Jin Xiong ◽  
Tao Liu ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Single Molecule ◽  
Exchange Coupling ◽  
Exchange Interactions ◽  
Coupling Effects ◽  
Single Molecule Magnet ◽  
Weak Exchange ◽  
Triangular Type

In this work, we investigated the magnetic anisotropy and the influence of weak exchange interactions on the magnetic relaxations of a triangular type dysprosium single-molecule magnet.

Single-molecule magnet behaviour in a tetranuclear DyIII complex formed from a novel tetrazine-centered hydrazone Schiff base ligand

2017 ◽  
Vol 46 (8) ◽  
pp. 2471-2478 ◽  
Author(s):  
T. Lacelle ◽  
G. Brunet ◽  
A. Pialat ◽  
R. J. Holmberg ◽  
Y. Lan ◽  
...  
Keyword(s):  
Schiff Base ◽  
Single Molecule ◽  
Schiff Base Ligand ◽  
Exchange Coupling ◽  
Single Molecule Magnet ◽  
Ferromagnetic Exchange ◽  
Dysprosium Complex

A tetranuclear dysprosium complex, bridged by a novel tetrazine-centered Schiff base ligand, exhibits ferromagnetic exchange coupling and a large anisotropic barrier.

Relationship between Torsion and Anisotropic Exchange Coupling in a TbIII-Radical-Based Single-Molecule Magnet

2015 ◽  
Vol 54 (12) ◽  
pp. 5732-5738 ◽  
Author(s):  
Michael L. Baker ◽  
Takuya Tanaka ◽  
Rina Murakami ◽  
Seiko Ohira-Kawamura ◽  
Kenji Nakajima ◽  
...  
Keyword(s):  
Single Molecule ◽  
Exchange Coupling ◽  
Single Molecule Magnet ◽  
Anisotropic Exchange
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