Výsledky vyhledávání - "Verdaguer, Michel"

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Vacancy-driven magnetocaloric effect in Prussian blue analogues

Autor: Evangelisti, Marco, Manuel, Esperanca, Affronte, Marco, Okubo, Masashi, Train, Cyrille, Verdaguer, Michel

We experimentally show that the magnetocaloric properties of molecule-based Prussian blue analogues can be adjusted by controlling during the synthesis the amount of intrinsic vacancies. For Cs_xNi^II_4[Cr^III(CN)_6]_(8+x)/3}, we find indeed that the

Externí odkaz: http://arxiv.org/abs/cond-mat/0605228

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Magnetocaloric effect in hexacyanochromate Prussian blue analogs

Autor: Manuel, Esperanca, Evangelisti, Marco, Affronte, Marco, Okubo, Masashi, Train, Cyrille, Verdaguer, Michel

Publikováno v: Phys. Rev. B 73, 172406 (2006)

We report on the magnetocaloric properties of two molecule-based hexacyanochromate Prussian blue analogs, nominally CsNi[Cr(CN)_6](H_2O) and Cr_3[Cr(CN)_6]_2x12(H_2O). The former orders ferromagnetically below Tc=90 K, whereas the latter is a ferrima

Externí odkaz: http://arxiv.org/abs/cond-mat/0602589

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Hexacyanometalate Molecular Chemistry : Trinuclear CrNi2 Complexes; MicroSQUID Magnetisation Studies of Intermolecular Interactions

Autor: Tiron, Raluca, Wernsdorfer, Wolfgang, Tuyeras, Fabien, Scuiller, Ariane, Marvaud, Valerie, Verdaguer, Michel

Three different CrNi2 complexes were synthesized. They differ from each other by the nature of the terminal ligand and of the counter anion : [Cr(CN)4[CN-Ni(tetren)]2]Cl, that crystallizes in two different crystallographic systems and [Cr(CN)4[CN-Ni(

Externí odkaz: http://arxiv.org/abs/cond-mat/0304270

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Dynamics at T -> 0 in the half-integer isotropic high spin molecules

Autor: Salman, Zaher, Keren, Amit, Mendels, Philippe, Marvaud, Valerie, Scuiller, Ariane, Verdaguer, Michel, Lord, James S., Baines, Chris

Publikováno v: Phys. Rev. B 65, 132403 (2002)

We investigate the dynamical spin-spin auto-correlation function of the isotropic high spin molecules CrCu$_{6}$ (S=9/2), CrNi$_{6}$ (S=15/2) and CrMn$_{6}$ (S=27/2), using magnetization, $\mu$SR and NMR measurements. We find that the field autocorre

Externí odkaz: http://arxiv.org/abs/cond-mat/0110347

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