Beyond the anisotropy barrier: slow relaxation of the magnetization in both easy-axis and easy-plane Ln(trensal) complexes

2014 ◽  
Vol 50 (14) ◽  
pp. 1648-1651 ◽  
Author(s):  
Eva Lucaccini ◽  
Lorenzo Sorace ◽  
Mauro Perfetti ◽  
Jean-Pierre Costes ◽  
Roberta Sessoli
Keyword(s):  
Magnetic Anisotropy ◽  
Easy Axis ◽  
Easy Plane ◽  
Slow Relaxation

The slow relaxation of the magnetization of lanthanide SMMs cannot be directly associated with the nature of magnetic anisotropy.

Magnetic Anisotropy Switch: Easy Axis to Easy Plane Conversion and Vice Versa

2018 ◽  
Vol 28 (32) ◽  
pp. 1801846 ◽  
Author(s):  
Mauro Perfetti ◽  
Mikkel A. Sørensen ◽  
Ursula B. Hansen ◽  
Heiko Bamberger ◽  
Samuel Lenz ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Easy Axis ◽  
Easy Plane

scholarly journals Substituent effects on fluoride binding by lanthanide complexes of DOTA-tetraamides

2016 ◽  
Vol 45 (7) ◽  
pp. 3070-3077 ◽  
Author(s):  
Octavia A. Blackburn ◽  
Jack D. Routledge ◽  
Laura B. Jennings ◽  
Nicholas H. Rees ◽  
Alan M. Kenwright ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Lanthanide Complexes ◽  
Easy Axis ◽  
Substituent Effects ◽  
Easy Plane ◽  
Metal Centre

Fluoride binding by lanthanide complexes of a range of DOTA tetraamides changes the magnetic anisotropy at the metal centre from an easy axis to an easy plane.

Easy-plane magnetic anisotropy in layered GdMn2Si2 compound with easy-axis magnetocrystalline anisotropy

2020 ◽  
Vol 818 ◽  
pp. 152902
Author(s):  
E.G. Gerasimov ◽  
P.B. Terentev ◽  
A.F. Gubkin ◽  
H.E. Fischer ◽  
D.I. Gorbunov ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Easy Axis ◽  
Magnetocrystalline Anisotropy ◽  
Easy Plane

Slow magnetic relaxation in penta-coordinate cobalt(ii) field-induced single-ion magnets (SIMs) with easy-axis magnetic anisotropy

2020 ◽  
Vol 49 (33) ◽  
pp. 11715-11726 ◽  
Author(s):  
Salah S. Massoud ◽  
Zoe E. Perez ◽  
Jessica R. Courson ◽  
Roland C. Fischer ◽  
Franz A. Mautner ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetic Relaxation ◽  
Easy Axis ◽  
Slow Relaxation ◽  
Slow Magnetic Relaxation

Two penta-coordinate [Co(Ln)(NCS)]ClO4 with substituted pyridyl based bispyrazolyl ligands have been structurally characterized. The complexes show an easy-axis magnetic anisotropy, large rhombicity and slow relaxation of magnetization.

A mononuclear Co(ii) complex formed from pyridinedimethanol with manifold slow relaxation channels

2017 ◽  
Vol 46 (33) ◽  
pp. 10950-10956 ◽  
Author(s):  
Dušan Valigura ◽  
Cyril Rajnák ◽  
Ján Moncol ◽  
Ján Titiš ◽  
Roman Boča
Keyword(s):  
Magnetic Anisotropy ◽  
Coordination Sphere ◽  
Magnetic Relaxation ◽  
Easy Axis ◽  
Slow Relaxation ◽  
Slow Magnetic Relaxation

A mononuclear hexacoordinate complex [Co(pydm)2](dnbz)2 formed from 2,6-pyridinedimethanol in the coordination sphere of Co(ii) and dinitrobenzoato anions exhibits magnetic anisotropy of an easy axis type and a field induced slow magnetic relaxation.

Spin-Reorientation Transition in Rare-Earth Intermetallics

2010 ◽  
Vol 168-169 ◽  
pp. 138-141
Author(s):  
A.N. Pirogov ◽  
S.G. Bogdanov ◽  
Young Hyun Choi ◽  
E.V. Rozenfeld ◽  
Yong Choi ◽  
...  
Keyword(s):  
Rare Earth ◽  
Neutron Diffraction ◽  
Magnetic Anisotropy ◽  
Easy Axis ◽  
Easy Plane ◽  
Spin Reorientation ◽  
Rare Earth Intermetallics ◽  
Spin Reorientation Transition ◽  
Powder Neutron Diffraction ◽  
Increasing Temperature

The Tm2Fe17 compound has been studied by means of powder neutron diffraction. The compound undergoes a spin-reorientation transition (SRT) of the “easy axis – easy plane” type with increasing temperature from 75 K to 100 K. The SRT is accompanied by a distinct anomaly in the temperature dependencies of the Tm- and Fe-ion magnetizations, significative of large magnetization anisotropy. Using three sublattices model, the parameter of the Tm-Fe interaction and constants of magnetic anisotropy are determined.

Tetrahedral MII based binuclear double-stranded helicates: single-ion-magnet and fluorescence behaviour

2016 ◽  
Vol 45 (11) ◽  
pp. 4548-4557 ◽  
Author(s):  
Amit Kumar Mondal ◽  
Vijay Singh Parmar ◽  
Soumava Biswas ◽  
Sanjit Konar
Keyword(s):  
Magnetic Anisotropy ◽  
High Spin ◽  
Easy Plane ◽  
Slow Relaxation ◽  
Photoluminescence Properties

It has been demonstrated that the slow relaxation of magnetization can be achieved in high spin tetrahedral CoII centres with an easy-plane magnetic anisotropy within the double-stranded helicates. The photoluminescence properties of the Zn analogues were studied in different solvents.

Magnetic Anisotropy in Electrodeposited CO Films and spin-valves on Gaas Substrates

1999 ◽  
Vol 562 ◽  
Author(s):  
K. Attenborough ◽  
M. Cerisier ◽  
H. Boeve ◽  
J. De Boeck ◽  
G. Borghs ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Buffer Layer ◽  
Structural Properties ◽  
Easy Axis ◽  
Spin Valve ◽  
X Ray Diffraction ◽  
X Ray ◽  
Cu Films ◽  
Gaas Substrates ◽  
Unique Spin

ABSTRACTWe have studied the magnetic and structural properties of thin electrodeposited Co and Cu layers grown directly onto (100) n-GaAs and have investigated the influence of a buffer layer. A dominant fourfold anisotropy with a uniaxial contribution is observed in 10 nm Co electrodeposited films on GaAs. An easy axis is observed in the [001] GaAs direction with two hard axes of differing coercivities parallel to the [011] and [011] directions. For thicker films the easy axes in the [001] direction becomes less pronounced and the fourfold anisotropy becomes less dominant. Co films of similar thicknesses deposited onto an electrodeposited Cu buffer layer were nearly isotropic. From X-ray diffraction 21 nm Co layers on GaAs were found to be hcp with the c-axis tending to be in the plane of the film. The anisotropy is ascribed to the Co/GaAs interface and is held responsible for the unique spin-valve properties seen recently in electrodeposited Co/Cu films.

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