Wojciech Juszczyk

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The effect of uniaxial pressure up to 1 kbar applied perpendicular and parallel to c-axis, on the Curie temperature and electric permittivity εc of Ba-doped Pb5Ge3O11 single crystals was investigated. The Curie temperature decreases with uniaxial pressure and the coefficient γi (γi ≡ δT c/δXi) is determined as –7 and –11 K kbar−1 for the band c-axes,(More)
We report an operando XRD/MS experiment on a nanocrystalline Pd(70%)Ag(30%) alloy supported on silica (10 wt% of metal) monitoring slow reversible Pd (in CO) and subsequently Ag (in He) surface segregation at 673 K. XRD data following CO and He flow show structural changes that can be modeled and interpreted in terms of the diffusion phenomena within a(More)
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