Bulky Schiff-base ligand supported Co(ii) single-ion magnets with zero-field slow magnetic relaxation

2020 ◽  
Vol 49 (18) ◽  
pp. 5798-5802 ◽  
Author(s):  
Guo Peng ◽  
Yue Chen ◽  
Bo Li ◽  
Yi-Quan Zhang ◽  
Xiao-Ming Ren
Keyword(s):  
Schiff Base ◽  
Magnetic Relaxation ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Static Field ◽  
Zero Field ◽  
Coordination Geometry ◽  
Schiff Base Ligands ◽  
Slow Magnetic Relaxation ◽  
Magnetic Hysteresis Loops

Two mononuclear Co(ii) complexes with tetrahedral coordination geometry have been constructed from different bulky Schiff-base ligands, and they show slow magnetic relaxation without a static field and magnetic hysteresis loops at 2 K.

Four mononuclear dysprosium complexes with neutral Schiff-base ligands: syntheses, crystal structures and slow magnetic relaxation behavior

2022 ◽  
Author(s):  
Hui Yang ◽  
Shan-Shan Liu ◽  
Yin-Shan Meng ◽  
Yi-Quan Zhang ◽  
Lin Pu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Crystal Structures ◽  
Magnetic Relaxation ◽  
Relaxation Behavior ◽  
Schiff Base Ligands ◽  
Slow Magnetic Relaxation

Four mononuclear 9-coordinate Dy-based complexes, [Dy(HL1)2(NO3)3(CH3OH)] (1Dy), [Dy(HL2)2(NO3)3(H2O)] (2Dy), [Dy(HL3)3(NO3)3]·CH3CN (3Dy), [Dy(HL4)3(NO3)3] (4Dy), have been constructed by neutral Schiff-base ligands (1-[N-(4-R)aminomethylidene-2(1H)-naphthalenone, R=-Cl (HL1), -NO2 (HL2), -OCH3 (HL3), -I (HL4) )....

scholarly journals Structure and magnetism of two chair-shaped hexanuclear dysprosium(iii) complexes exhibiting slow magnetic relaxation

RSC Advances ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 767-774 ◽  
Author(s):  
Zi-Yuan Liu ◽  
Hua-Hong Zou ◽  
Rong Wang ◽  
Man-Sheng Chen ◽  
Fu-Pei Liang
Keyword(s):  
Schiff Base ◽  
Low Temperature ◽  
Magnetic Relaxation ◽  
Building Blocks ◽  
Relaxation Behavior ◽  
Schiff Base Ligands ◽  
Slow Magnetic Relaxation

We report two novel chair-shaped hexanuclear DyIII complexes with different polyhydroxy Schiff-base ligands. Both complexes are constructed with Dy3 triangular motifs as building blocks and exhibit slow magnetic relaxation behavior at low temperature.

Syntheses, crystal structures and magnetic properties of two mixed-valence Co(iii)Co(ii) compounds derived from Schiff base ligands: field-supported single-ion-magnet behavior with easy-plane anisotropy

2017 ◽  
Vol 46 (38) ◽  
pp. 13135-13144 ◽  
Author(s):  
Shuvankar Mandal ◽  
Suraj Mondal ◽  
Cyril Rajnák ◽  
Ján Titiš ◽  
Roman Boča ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Crystal Structures ◽  
Magnetic Relaxation ◽  
Mixed Valence ◽  
Easy Plane ◽  
Schiff Base Ligands ◽  
Plane Anisotropy ◽  
Amino Phenol ◽  
Slow Magnetic Relaxation

Positive D values and slow magnetic relaxation with two relaxation channels have been observed in two CoIIICoII compounds derived from imino-amino-phenol ligands.

Magnetic Properties of Nano Zerovalent Iron Particles Coated with Biopolymers

2014 ◽  
Vol 912-914 ◽  
pp. 32-35 ◽  
Author(s):  
Ding Qi Xue
Keyword(s):  
Magnetic Properties ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Magnetic Interaction ◽  
Zerovalent Iron ◽  
Phase Method ◽  
Zero Field ◽  
Iron Particles ◽  
Liquid Phase Method ◽  
Magnetic Hysteresis Loops

nanozerovalent iron particles coated with biopolymer nanoskin were prepared by liquid phase method. For a period of time, the remaining xanthan layer can prevent oxidation of nanoiron in air. The goal of this study is to demonstrate that magnetic properties of magnetic fluid which suspend nanoiron particles coated with xanthan in xanthan/guar fluid. Magnetic hysteresis loops were measured at room temperatures and field-cooled / zero-field-cooled magnetization curves were obtained at low temperature by a vibrating sample magnetometer. The results interpret that biopolymer nanoskin did not strongly weaken the magnetic interaction between nanoiron particles.

Correlating the axial Zero Field Splitting with the slow magnetic relaxation in GdIII SIMs

2021 ◽  
Author(s):  
Júlia Mayans ◽  
Albert Escuer
Keyword(s):  
Magnetic Relaxation ◽  
Zero Field ◽  
Zero Field Splitting ◽  
Field Splitting ◽  
Slow Magnetic Relaxation

A possible relation between the value of the axial Zero Field Splitting and the occurrence of field-induced slow magnetic relaxation has been established for a new gadolinium(iii) compound.

Cu(ii)–Dy(iii) and Co(iii)–Dy(iii) based single molecule magnets with multiple slow magnetic relaxation processes in the Cu(ii)–Dy(iii) complex

2015 ◽  
Vol 44 (29) ◽  
pp. 13242-13249 ◽  
Author(s):  
Malay Dolai ◽  
Mahammad Ali ◽  
Ján Titiš ◽  
Roman Boča
Keyword(s):  
Schiff Base ◽  
Single Molecule ◽  
Schiff Base Ligand ◽  
Magnetic Relaxation ◽  
Magnetic Behaviour ◽  
Dinuclear Complexes ◽  
Relaxation Processes ◽  
Single Molecule Magnets ◽  
Slow Magnetic Relaxation

Two CuII–DyIII and CoIII–DyIII dinuclear complexes of a Schiff base ligand (H3L) exhibit single-molecule magnetic behaviour with multiple slow magnetic relaxation processes for the former.

Simulations of magnetic hysteresis loops at high temperatures

2014 ◽  
Vol 116 (12) ◽  
pp. 123910 ◽  
Author(s):  
M. L. Plumer ◽  
J. van Ek ◽  
J. P. Whitehead ◽  
T. J. Fal ◽  
J. I. Mercer
Keyword(s):  
High Temperatures ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Magnetic Hysteresis Loops
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