Prof. Eugenio Coronado (ICMol. Univ. Valencia)
7/7/15, 9:00 AM
Responsive materials for which physical or chemical properties can be tuned by applying an external stimulus are attracting considerable interest in materials science. This kind of materials may be viewed as a new generation of multifunctional materials in which two (or more) functional properties are not simply co-existing in the same material but strongly coupled to guarantee its response to...
Prof. Hiroko Tokoro (Division of Materials Science, Faculty of Pure and Applied Sciences)
7/7/15, 9:40 AM
In recent years, cyano-bridged metal assemblies have been aggressively studied to demonstrate various magnetic functionalities.(1,2) Among them, rubidium manganese hexacyanoferrate is an attractive material since it shows a various functionalities, e.g., thermal-induced phase transition, electronic-field induced phase transition, ferroelectric ferromagnetism, second harmonic generation,...
Dr Robert Podgajny (Faculty of Chemistry, Jagiellonian University, Kraków)
7/7/15, 10:10 AM
The low dimensional cyanido-bridged species gained an extremely strong interest due to the diversity of structural coordination forms and numerous properties, prospective for future applications in data storage and processing. This could be accessible through the controlled manipulation on structural, electronic and magnetic state of the related soft materials. Several important underlying...
Dr Dawid Pinkowicz (Faculty of Chemistry, Jagiellonian University, Kraków)
7/7/15, 10:40 AM
One of the huge advantages of molecule-based magnets over the conventional magnetic solids is their “structural plasticity” – the ability to undergo structural and magnetic changes/transitions on slight modifications by using appropriate stimuli: temperature, pressure, guest molecules, electromagnetic radiation and so on. In case of cyanide-based magnetic solids the removal/uptake of guest...
32. Influence of a chemical and a structural modification on the magnetic properties of 1D and 2D transition metal thio- and selenocyanato coordination polymers
Prof. Christian Näther (University of Kiel, Germany)
7/7/15, 11:30 AM
Recently, investigations on the synthesis of new magnetic materials like, e.g., single chain magnets (SCMs) has become of increasing interest. This behaviour was already predicted by Glauber in 1963 but experimentally proven for the first time by Caneschi et al. in 2001. Such compounds show a slow relaxation of the magnetization below the so-called blocking temperature and therefore, are able...
Dr Beata Nowicka (Faculty of Chemistry, Jagiellonian University, Kraków)
7/7/15, 12:00 PM
Materials that respond to external stimuli in form of temperature, pressure, light or presence of guest molecules by changes in magnetic, optical or electrical properties can act as molecular switches and sensors. Molecular assemblies composed of metal ions and bridging ligands, which show sensitivity to external stimuli are often characterised by the flexibility of their coordination...
84. Magnetic properties of (Ph<sub>4</sub>P)<sub>2</sub>[Mn(acacen)M(CN)<sub>6</sub>] single chain magnets for M=Fe, Os, and M=Co
M. Rams (Institute of Physics, Jagiellonian University, Kraków)
7/7/15, 12:20 PM
Single chain magnet (SCM) behavior may be observed in crystals in which the exchange interaction between spins creates a quasi one dimensional system. Despite the lack of a long-range magnetic order at a finite temperature, SCMs may exhibit below a blocking temperature the remanent magnetization due to slow magnetic relaxation. The relaxation time of ferromagnetically coupled chain of Ising...
Dr Bridget Murphy (Kiel University)
7/8/15, 11:30 AM
Magnetoelectric composite materials are promising candidates for highly sensitive magnetic-field sensors. Exploiting a range of X-ray diffraction methods [1-3], we have succeeded to directly determine magnetic and electric field induced strain at the interface of these magnetoelectric composites. We show that both geometry and sample growth play an important role in strain behaviour. High...
34. Thermodynamic Properties of Non-ordered Spin States in Molecular Compounds with Geometric Frustration
Prof. Yasuhiro Nakazawa (Osaka University)
7/8/15, 12:00 PM
We present unusual low-temperature thermodynamic properties of two-dimensional organic triangle lattice compounds by single crystal calorimetry technique. The target compounds of this study are κ-(BEDT-TTF)2Cu2(CN)3, EtMe3Sb[Pd(dmit)2]2 and κ-H3(Cat-EDT-TTF)2, which are known as typical dimer Mott...
59. Spectroscopic studies of the phase transition from Mott insulating phase to charge ordering phase in the charge-transfer salt κ-(ET)<sub>4</sub>[Fe<sup>III</sup>(CN)<sub>6</sub>][N(C<sub>2</sub>H<sub>5</sub>)<sub>4</sub>]•2H<sub>2</sub>O
Dr Andrzej Łapiński (Institute of Molecular Physics, Polish Academy of Sciences, Poznań, Poland)
7/8/15, 12:30 PM
molecular magnets and nanomagnets
Organic molecular conductors formed by the bis(ethylenedithio)tetrathiafulvalene (ET) and anions with permanent magnetic moments exhibit various electronic states and physical properties, such as Mott insulator or charge ordering. Some time ago, a new κ-ET salt with Fe(CN)63- anions, N(C)2H)5))4+cations, and H2O...
Dr Szymon Chorąży (Department of Chemistry, The University of Tokyo)
7/8/15, 12:50 PM
Molecule-based magnets constructed of octacyanidometallates and complexes of 3d/4f metal ions are now attracting a considerable attention as they reveal the wide range of magnetic phenomena including ferromagnetism, metamagnetism, charge transfer or spin transitions, and slow relaxation of magnetization. The implementation of other physical functionalities, including chirality,...
52. A magnetic study of an anisotropic Cu<sup>II</sup>-[W<sup>V</sup>(CN)<sub>8</sub>]<sup>3-</sup> molecular metamagnet family
Dr Anna Majcher (Institute of Physics, Jagiellonian University, Kraków)
7/8/15, 1:05 PM
molecular magnets and nanomagnets
A detailed magnetic study of a family of magnetic polymers [CuII(55'-dmbpy)]2[WV(CN)8]X∙H2O (55'-dmbpy = 5,5'-dimethyl-2,2'-bipyridine) with different anions X: Br- (1) ,Cl-(2), NO3-(3) is presented. The magnetic properties of all three analogues are similar, showing antiferromagnetic...
Mr Piotr Konieczny (Institute of Nuclear Physics PAN, Kraków)
7/8/15, 1:20 PM
molecular magnets and nanomagnets
The pressure measurements of magnetic materials give the opportunity to study the fundamental aspects of magnetism. In this study a molecular ferromagnet CoII(pyrazol)4]2[NbIV(CN)8]∙4H2O}n has been studied with the use of ac/dc magnetometry under hydrostatic pressure up to 13 kbar. The studied compound crystallizes...