scholarly journals Efficient spin-current injection in single-molecule magnet junctions

AIP Advances ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 015131 ◽  
Author(s):  
Haiqing Xie ◽  
Fuming Xu ◽  
Hujun Jiao ◽  
Qiang Wang ◽  
J.-Q. Liang
Keyword(s):  
Single Molecule ◽  
Spin Current ◽  
Current Injection ◽  
Single Molecule Magnet

scholarly journals Spin current and polarization reversal through a single-molecule magnet with ferromagnetic electrodes

2012 ◽  
Vol 111 (6) ◽  
pp. 063707 ◽  
Author(s):  
Haiqing Xie ◽  
Qiang Wang ◽  
Bo Chang ◽  
Hujun Jiao ◽  
J.-Q. Liang
Keyword(s):  
Single Molecule ◽  
Spin Current ◽  
Polarization Reversal ◽  
Single Molecule Magnet ◽  
Ferromagnetic Electrodes

scholarly journals Ultrahigh spin thermopower and pure spin current in a single-molecule magnet

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Bo Luo ◽  
Juan Liu ◽  
Jing-Tao Lü ◽  
Jin-Hua Gao ◽  
Kai-Lun Yao
Keyword(s):  
Single Molecule ◽  
Spin Current ◽  
Pure Spin ◽  
Single Molecule Magnet

All-electric-controlled spin current switching in single-molecule magnet-tunnel junctions

2011 ◽  
Vol 20 (4) ◽  
pp. 047504 ◽  
Author(s):  
Zheng-Zhong Zhang ◽  
Rui Shen ◽  
Li Sheng ◽  
Rui-Qiang Wang ◽  
Bai-Gen Wang
Keyword(s):  
Single Molecule ◽  
Tunnel Junctions ◽  
Spin Current ◽  
Single Molecule Magnet ◽  
Current Switching

scholarly journals Controllable spin switch in a single-molecule magnet tunneling junction

2020 ◽  
Author(s):  
Zhengzhong Zhang ◽  
Hao Liu
Keyword(s):  
Magnetic Field ◽  
Single Molecule ◽  
Spin Current ◽  
Tunneling Junction ◽  
Metal Electrodes ◽  
Single Molecule Magnet ◽  
Molecular Orbit ◽  
Spin Polarized ◽  
New Type ◽  
Spin Switch

Abstract A new type of spin-current filter is proposed, which consists of a single-molecule magnet (SMM) coupled to two normal metal electrodes. It is shown that this tunneling junction can generate a highly spin-polarized current, whose spin polarization can be switched by the magnetic field and gate voltage applied to the SMM. Such a spin switching in the SMM tunnel junction arises from the spin-selected single electron resonant tunneling via the lowest unoccupied molecular orbit of the SMM. And the electron current spectrum in absences of external magnetic field is still spin-polarized, which can help us to judge if the molecule’s spin state has reach to the ground-state doublet |±S). This device can be realized with current technologies and may have practical use in spintronics and quantum information.PACS numbers: 72.25.-b, 75.50.Xx, 85.75.-d

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.

scholarly journals Solid‐State Near‐Infrared Circularly Polarized Luminescence from Chiral YbIII‐Single‐Molecule Magnet

2021 ◽  
Author(s):  
Fabrice Pointillart ◽  
Bertrand Lefeuvre ◽  
Carlo Andrea Mattei ◽  
Jessica Flores Gonzalez ◽  
Frédéric Gendron ◽  
...  
Keyword(s):  
Solid State ◽  
Single Molecule ◽  
Near Infrared ◽  
Circularly Polarized ◽  
Single Molecule Magnet ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Slow magnetic relaxation in dinuclear dysprosium and holmium phenoxide bridged complexes: a Dy2 single molecule magnet with a high energy barrier

2021 ◽  
Author(s):  
Matilde Fondo ◽  
Julio Corredoira-Vázquez ◽  
Ana M. Garcia-Deibe ◽  
Jesus Sanmartin Matalobos ◽  
Silvia Gómez-Coca ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Single Molecule ◽  
Energy Barrier ◽  
Magnetic Relaxation ◽  
High Energy ◽  
Single Molecule Magnet ◽  
High Energy Barrier ◽  
Slow Magnetic Relaxation

Dinuclear [M(H3L1,2,4)]2 (M = Dy, Dy2; M = Ho, Ho2) complexes were isolated from an heptadentate aminophenol ligand. The crystal structures of Dy2·2THF, and the pyridine adducts Dy2·2Py and Ho2·2Py,...

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