scholarly journals Strong Exchange Couplings Drastically Slow Down Magnetization Relaxation in an Air‐Stable Cobalt(II)‐Radical Single‐Molecule Magnet (SMM)

2019 ◽  
Vol 58 (29) ◽  
pp. 9802-9806 ◽  
Author(s):  
Uta Albold ◽  
Heiko Bamberger ◽  
Philipp P. Hallmen ◽  
Joris van Slageren ◽  
Biprajit Sarkar
Keyword(s):  
Single Molecule ◽  
Magnetization Relaxation ◽  
Single Molecule Magnet ◽  
Strong Exchange

scholarly journals Magnetization relaxation in the single-molecule magnet Ni 4 under continuous microwave irradiation

2008 ◽  
Vol 83 (3) ◽  
pp. 37006 ◽  
Author(s):  
G. de Loubens ◽  
D. A. Garanin ◽  
C. C. Beedle ◽  
D. N. Hendrickson ◽  
A. D. Kent
Keyword(s):  
Microwave Irradiation ◽  
Single Molecule ◽  
Magnetization Relaxation ◽  
Single Molecule Magnet

scholarly journals A Co-based single-molecule magnet confined in a barium phosphate apatite matrix with a high energy barrier for magnetization relaxation

2017 ◽  
Vol 53 (39) ◽  
pp. 5416-5419 ◽  
Author(s):  
Pavel E. Kazin ◽  
Mikhail A. Zykin ◽  
Lev A. Trusov ◽  
Artem A. Eliseev ◽  
Oxana V. Magdysyuk ◽  
...  
Keyword(s):  
High Spin ◽  
Single Molecule ◽  
Energy Barrier ◽  
High Energy ◽  
Magnetization Relaxation ◽  
Single Molecule Magnet ◽  
High Energy Barrier ◽  
Spin Reversal ◽  
Type Lattice ◽  
Apatite Type

A Co-ion introduced into the trigonal channel of an apatite-type lattice forms a magnetically anisotropic two-coordinated Co-complex with a record-high spin-reversal energy barrier.

“Isolated” DyO+ Embedded in a Ceramic Apatite Matrix Featuring Single-Molecule Magnet Behavior with a High Energy Barrier for Magnetization Relaxation

2017 ◽  
Vol 129 (43) ◽  
pp. 13601-13605 ◽  
Author(s):  
Pavel E. Kazin ◽  
Mikhail A. Zykin ◽  
Valentina V. Utochnikova ◽  
Oxana V. Magdysyuk ◽  
Alexander V. Vasiliev ◽  
...  
Keyword(s):  
Single Molecule ◽  
Energy Barrier ◽  
High Energy ◽  
Magnetization Relaxation ◽  
Single Molecule Magnet ◽  
High Energy Barrier

scholarly journals Magnetization relaxation in the single-ion magnet DySc2N@C80: quantum tunneling, magnetic dilution, and unconventional temperature dependence

2018 ◽  
Vol 20 (17) ◽  
pp. 11656-11672 ◽  
Author(s):  
D. S. Krylov ◽  
F. Liu ◽  
A. Brandenburg ◽  
L. Spree ◽  
V. Bon ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Temperature Dependence ◽  
Single Molecule ◽  
Quantum Tunneling ◽  
Magnetization Relaxation ◽  
Single Molecule Magnet ◽  
Magnetic Dilution

Quantum tunneling and relaxation of magnetization in single molecule magnet DySc2N@C80 is thoroughly studied as a function of magnetic dilution, temperature, and magnetic field.

“Isolated” DyO+ Embedded in a Ceramic Apatite Matrix Featuring Single-Molecule Magnet Behavior with a High Energy Barrier for Magnetization Relaxation

2017 ◽  
Vol 56 (43) ◽  
pp. 13416-13420 ◽  
Author(s):  
Pavel E. Kazin ◽  
Mikhail A. Zykin ◽  
Valentina V. Utochnikova ◽  
Oxana V. Magdysyuk ◽  
Alexander V. Vasiliev ◽  
...  
Keyword(s):  
Single Molecule ◽  
Energy Barrier ◽  
High Energy ◽  
Magnetization Relaxation ◽  
Single Molecule Magnet ◽  
High Energy Barrier

Single-molecule magnet involving strong exchange coupling in terbium(iii) complex with 2,2′-bipyridin-6-yl tert-butyl nitroxide

2015 ◽  
Vol 2 (9) ◽  
pp. 860-866 ◽  
Author(s):  
Takuya Kanetomo ◽  
Shunsuke Yoshii ◽  
Hiroyuki Nojiri ◽  
Takayuki Ishida
Keyword(s):  
Magnetic Properties ◽  
Hysteresis Loop ◽  
Single Molecule ◽  
Exchange Coupling ◽  
Antiferromagnetic Interaction ◽  
Single Molecule Magnet ◽  
Tert Butyl ◽  
Strong Exchange

Intramolecular antiferromagnetic interaction in Tb-6bpyNO was confirmed by comparison with the magnetic properties of Tb-6bpyCO and Y-6bpyNO. Tb-6bpyNO showed a hysteresis loop below 1.6 K, but Tb-6bpyCO did not behave as a single-molecule magnet.

{CoIII2DyIII2} single molecule magnet with two resolved thermal activated magnetization relaxation pathways at zero field

2014 ◽  
Vol 43 (6) ◽  
pp. 2361-2364 ◽  
Author(s):  
Alejandro V. Funes ◽  
Luca Carrella ◽  
Eva Rentschler ◽  
Pablo Alborés
Keyword(s):  
Single Molecule ◽  
Zero Field ◽  
Magnetization Relaxation ◽  
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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