Effect of pressure on the magnetic properties of LiCuFe and LiCuFe@LiNiCr Prussian blue analogues

Polyhedron ◽  
2013 ◽  
Vol 66 ◽  
pp. 264-267 ◽  
Author(s):  
Marcus K. Peprah ◽  
Carissa H. Li ◽  
Daniel R. Talham ◽  
Mark W. Meisel
Keyword(s):  
Magnetic Properties ◽  
Prussian Blue ◽  
Effect Of Pressure ◽  
Prussian Blue Analogues

scholarly journals The Effect of Pressure on Magnetic Properties of Prussian Blue Analogues

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 112 ◽  
Author(s):  
Maria Zentkova ◽  
Marian Mihalik
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Curie Temperature ◽  
Prussian Blue ◽  
High Spin ◽  
Pressure Effect ◽  
Spin Transition ◽  
Applied Pressure ◽  
Effect Of Pressure ◽  
Prussian Blue Analogues

We present the review of pressure effect on the crystal structure and magnetic properties of Cr(CN)6-based Prussian blue analogues (PBs). The lattice volume of the fcc crystal structure space group Fm 3 ¯ m in the Mn-Cr-CN-PBs linearly decreases for p ≤ 1.7 GPa, the change of lattice size levels off at 3.2 GPa, and above 4.2 GPa an amorphous-like structure appears. The crystal structure recovers after removal of pressure as high as 4.5 GPa. The effect of pressure on magnetic properties follows the non-monotonous pressure dependence of the crystal lattice. The amorphous like structure is accompanied with reduction of the Curie temperature (TC) to zero and a corresponding collapse of the ferrimagnetic moment at 10 GPa. The cell volume of Ni-Cr-CN-PBs decreases linearly and is isotropic in the range of 0–3.1 GPa. The Raman spectra can indicate a weak linkage isomerisation induced by pressure. The Curie temperature in Mn2+-CrIII-PBs and Cr2+-CrIII-PBs with dominant antiferromagnetic super-exchange interaction increases with pressure in comparison with decrease of TC in Ni2+-CrIII-PBs and Co2+-CrIII-PBs ferromagnets. TC increases with increasing pressure for ferrimagnetic systems due to the strengthening of magnetic interaction because pressure, which enlarges the monoelectronic overlap integral S and energy gap ∆ between the mixed molecular orbitals. The reduction of bonding angles between magnetic ions connected by the CN group leads to a small decrease of magnetic coupling. Such a reduction can be expected on both compounds with ferromagnetic and ferrimagnetic ordering. In the second case this effect is masked by the increase of coupling caused by the enlarged overlap between magnetic orbitals. In the case of mixed ferro–ferromagnetic systems, pressure affects μ(T) by a different method in Mn2+–N≡C–CrIII subsystem and CrIII–C≡N–Ni2+ subsystem, and as a consequence Tcomp decreases when the pressure is applied. The pressure changes magnetization processes in both systems, but we expect that spontaneous magnetization is not affected in Mn2+-CrIII-PBs, Ni2+-CrIII-PBs, and Co2+-CrIII-PBs. Pressure-induced magnetic hardening is attributed to a change in magneto-crystalline anisotropy induced by pressure. The applied pressure reduces saturated magnetization of Cr2+-CrIII-PBs. The applied pressure p = 0.84 GPa induces high spin–low spin transition of cca 4.5% of high spin Cr2+. The pressure effect on magnetic properties of PBs nano powders and core–shell heterostructures follows tendencies known from bulk parent PBs.

Magnetic Properties of Bilayer Thin Film Composed of Hard and Soft Ferromagnetic Prussian Blue Analogues

2017 ◽  
Vol 2 (26) ◽  
pp. 7930-7934 ◽  
Author(s):  
Magdalena Fitta ◽  
Paweł Czaja ◽  
Michał Krupiński ◽  
Gabriela Lewińska ◽  
Michał Szuwarzyński ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Prussian Blue ◽  
Prussian Blue Analogues ◽  
Soft Ferromagnetic

Mixed valency and magnetism in cyanometallates and Prussian blue analogues

2007 ◽  
Vol 366 (1862) ◽  
pp. 127-138 ◽  
Author(s):  
J.M Herrera ◽  
A Bachschmidt ◽  
F Villain ◽  
A Bleuzen ◽  
V Marvaud ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Curie Temperature ◽  
Prussian Blue ◽  
Crucial Role ◽  
Transition Metal Ions ◽  
High Curie Temperature ◽  
Mixed Valency ◽  
Prussian Blue Analogues ◽  
Cyanide Ligand

Prussian blue (PB) is a well-known archetype of mixed valency systems. In magnetic PB analogues {C x A y [B(CN) 6 ] z }. n H 2 O (C alkali cation, A and B transition metal ions) and other metallic cyanometallates {C x (AL) y [B(CN) 8 ] z }. n H 2 O (L ligand), the presence of two valency states in the solid (either A–B, or A–A′ or B–B′) is crucial to get original magnetic properties: tunable high Curie temperature magnets; photomagnetic magnets; or photomagnetic high-spin molecules. We focus on a few mixed valency pairs: V(II)/V(III)/V(IV); Cr(II)/Cr(III); Fe(II)–Fe(III); Co(II)–Co(III); Cu(I)–Cu(II); and Mo(IV)/Mo(V), and discuss: (i) the control of the degree of mixed valency during the synthesis, (ii) the importance of mixed valency on the local and long-range structure and on the local and macroscopic magnetization, and (iii) the crucial role of the cyanide ligand to get these original systems and properties.

Distinct magnetic properties of one novel type of nanoscale cobalt–iron Prussian blue analogues synthesized in microemulsion

2010 ◽  
Vol 322 (5) ◽  
pp. 572-577 ◽  
Author(s):  
Hui Liu ◽  
Xian long Du ◽  
Peiyuan Gao ◽  
Ji hua Zhao ◽  
Jian Fang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Prussian Blue ◽  
Prussian Blue Analogues ◽  
Cobalt Iron

Design and Synthesis of Concentration Gradient Prussian Blue Analogues

2021 ◽  
Vol 21 (2) ◽  
pp. 916-925
Author(s):  
SuKyung Jeon ◽  
Carissa H. Li ◽  
Daniel R. Talham
Keyword(s):  
Prussian Blue ◽  
Concentration Gradient ◽  
Design And Synthesis ◽  
Prussian Blue Analogues

Titelbild: Mesostructured Prussian Blue Analogues (Angew. Chem. 3/2008)

2007 ◽  
Vol 120 (3) ◽  
pp. 427-427
Author(s):  
Xavier Roy ◽  
Laurence K. Thompson ◽  
Neil Coombs ◽  
Mark J. MacLachlan
Keyword(s):  
Prussian Blue ◽  
Prussian Blue Analogues

Designing heterostructurated core@satellites Prussian Blue Analogue@Au-Ag nanoparticles: effect on the magnetic properties and catalytic activity

2021 ◽  
Author(s):  
Ekaterina Mamontova ◽  
María Rodríguez-Castillo ◽  
Erwan Oliviero ◽  
Yannick Guari ◽  
Joulia Larionova ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Catalytic Activity ◽  
Prussian Blue ◽  
Molecular Complex ◽  
Ag Nanoparticles ◽  
Prussian Blue Analogue

We report in this article new magneto-plasmonic core@satellites Prussian Blue Analogue (PBA)@Au-Ag nanoheterostructures obtained by using a post-synthetic impregnation of a bimetallic [AuI2AgI2(C6F5)4(OEt2)2]n molecular complex with the ferromagnetic K+/Ni2+/[Cr(CN)6]3− PBA...

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