Results 261 to 270 of about 298,276 (333)

Effect of Axial Ligands on Easy-Axis Anisotropy and Field Induced Slow Magnetic Relaxation in Heptacoordinated Fe(II) Complexes.

Chemistry, 2020
A rational approach of modulating easy-axis magnetic anisotropy by axial donor ligand on heptacoordinated Fe II complexes have been explored. In this series of complexes with formulae of [Fe(H 4 L)(NCS) 2 ]·3DMF·0.5H 2 O ( 1 ), [Fe(H 4 L)(NCSe) 2 ]·3DMF ...
A. Mondal, Shu‐Qi Wu, O. Sato, Sanjit Konar   +3 more
semanticscholar   +1 more source

Slow magnetic relaxation in a cobalt magnetic chain

Chemical Communications, 2011
A homospin ladder-like chain, [Co(Hdhq)(OAc)](n) (1; H(2)dhq = 2,3-dihydroxyquinoxaline), shows a single-chain-magnet-like (SCM-like) behavior with the characteristics of frequency dependence of the out-of-phase component in alternating current (ac) magnetic susceptibilities and hysteresis loops.
Yang, C.I., Chuang, P.H., Lu, K.L.
openaire   +3 more sources

Slow relaxation in magnetic materials

Ultramicroscopy, 1992
Magnetic aftereffects in magnetic materials have previously been attributed to rotation of individual domains and wall motion between domains. We have measured the relaxation of the remanent magnetization as a function of time, in several magnetic materials including random magnetic systems and single-crystal ferromagnets, from 10-5 to 104s after ...
R.V. Chamberlin, M.R. Scheinfein
openaire   +1 more source

Slow magnetic relaxation in hexacoordinated cobalt(ii) field-induced single-ion magnets

, 2020
To gain a better insight into the factors affecting the enhancement of the energy barrier in single molecule (single ion) magnets, three hexacoordinate cobalt(II) complexes based on the tridentate ligand 2,6-bis(pyrazol-1-yl)pyridine (pypz) and ...
A. Świtlicka, B. Machura, Mateusz Penkala, A. Bieńko, D. Bieńko, J. Titiš, C. Rajnák, R. Boča, A. Ozarowski   +8 more
semanticscholar   +1 more source

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

Dalton Transactions, 2020
Two mononuclear Co(ii) complexes with tetrahedral coordination geometry have been constructed from different bulky Schiff-base ligands. Both complexes exhibit slow magnetic relaxation without a static field and their relaxation behaviors can be tuned by ...
G. Peng, Yue Chen, Bo Li, Yiquan Zhang, Xiao-Ming Ren   +4 more
semanticscholar   +1 more source

A Ferroelectric Metallomesogen Exhibiting Field‐Induced Slow Magnetic Relaxation

Chemistry – A European Journal, 2021
AbstractMagnetoelectric (ME) materials exhibiting coupled electric and magnetic properties are of significant interest because of their potential use in memory storage devices, new sensors, or low‐consumption devices. Herein, we report a new category of ME material that shows liquid crystal (LC), ferroelectric (FE), and field‐induced single molecule ...
Ryohei Akiyoshi, Hikaru Zenno, Yoshihiro Sekine, Manabu Nakaya, Motoko Akita, Daisuke Kosumi, Leonard F. Lindoy, Shinya Hayami   +7 more
openaire   +2 more sources

Computer simulation of slow magnetic relaxation

Journal of Magnetism and Magnetic Materials, 1995
Abstract We present a computer simulation study of magnetic relaxation for a system of single-domain particles. We focus on the dependence of the magnetic viscosity coefficient with the shape of the distribution function of activation energies, and compare our computational results with known experimental results for a ferrofluid system.
C. Sánchez, J.M. González-Miranda, J. Tejada   +2 more
openaire   +1 more source

Slow Magnetic Relaxation in Iron: A Ferromagnetic Liquid

Science, 1993
The remanent magnetization of single-crystal iron whiskers has been measured from 10 -5 to 10 4 seconds after the removal of an applied field. The observed response is accurately modeled by localized magnon relaxation on a Gaussian size distribution of dynamically correlated domains ...
R V, Chamberlin, M R, Scheinfein
openaire   +2 more sources

Slow Magnetic Relaxation in an Octanuclear Manganese Chain

Inorganic Chemistry, 2010
A one-dimensional chain containing a mixed-valence octanuclear manganese(II,III) building unit, (NEt(4))(2n)[Mn(8)O(2)(salox)(6)(N(3))(8)(MeOH)(3)](n) (H(2)salox = salicylaldoxime), was synthesized and characterized structurally and magnetically. Each building unit contains a [Mn(II)(2)Mn(III)(6)O(2)](18+) structural topology.
Chen-I, Yang, Shao-Po, Hung, Gene-Hsiang, Lee, Motohiro, Nakano, Hui-Lien, Tsai   +4 more
openaire   +2 more sources

Coupling Dy₃ Triangles Enhances Their Slow Magnetic Relaxation

Angewandte Chemie International Edition, 2010
Two's company: Coupling two Dy3 triangles to give Dy6 (see picture; Dy blue, Cl green, O red) leads to a dramatic enhancement of the barrier height to magnetization reversal. The enhancement has been rationalized by single-crystal magnetometry measurements and ab initio calculations.
Anson, N., Ian j, Hewitt, Jinkui, Tang, N.  t, Madhu, Christopher e, Anson, Yanhua, Lan, Javier, Luzon, Mael, Etienne, Roberta, Sessoli, Powell, Annie k   +9 more
openaire   +4 more sources