Mythen detector system

Schmitt, B.; Brönnimann, Ch.; Eikenberry, Eric F.; Gozzo, F.; Hörmann, Ch.; Horisberger, R.; Pàtterson, B. D.

doi:10.1016/s0168-9002(02)02045-4

Cited by 202 publications

(111 citation statements)

References 3 publications

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“…Data were recorded by a position-sensitive microstrip detector ͑MYTHEN II͒. 43 Neutron powder diffraction measurements were carried out on the Structure Powder Diffractometer ͑SPODI͒ at the research reactor FRM-II ͑Garching b. München, Germany͒ 44 at an incident wavelength of 1.548 Å. The compositions PLZT 50/50, 52/48, 52.5/47.5, 53/47, 54/46, 55/45.…”

Section: Methodsmentioning

confidence: 99%

Influence of lanthanum doping on the morphotropic phase boundary of lead zirconate titanate

Hinterstein

Schoenau

Kling

et al. 2010

Journal of Applied Physics

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A phase diagram for morphotropic ͑Pb 0.985 La 0.01 ͒͑Zr 1−x Ti x ͒O 3 is proposed based on a combination of X-ray and neutron powder diffraction experiments and complemented by transmission electron microscopy. Dependent on composition three regions are characterized. The stability range of tetragonal microdomains for high Ti contents, the stability range of rhombohedral microdomains for low Ti contents, and an intermediate stability range of nanodomains. All three regions exhibit a corresponding low temperature configuration. Temperature dependent diffraction revealed that lanthanum doping reduces the sensitivity of the structure to changes in temperature and composition. A continuous transition from pseudorhombohedral to tetragonal symmetry with an intermediate two-phase region at the morphotropic phase boundary is observed. A similar transition of low temperature superstructure phases from pseudorhombohedral to pseudotetragonal with an intermediate monoclinic phase governed by a continuous change in the oxygen octahedral tilt system from a − a − a − over a − a − c − to a 0 a 0 c − is identified.

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Section: Methodsmentioning

confidence: 99%

Influence of lanthanum doping on the morphotropic phase boundary of lead zirconate titanate

Hinterstein

Schoenau

Kling

et al. 2010

Journal of Applied Physics

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“…The diffracted x-rays were recorded by a single photon counting strip-type detector, which was originally developed for time-resolved XRD. 45 We present the design, crystal preparation procedure, and the performance achieved with the spectrometer. The application of the spectrometer for single-shot XES and quick-RIXS measurements is demonstrated.…”

Section: Introductionmentioning

confidence: 99%

A von Hamos x-ray spectrometer based on a segmented-type diffraction crystal for single-shot x-ray emission spectroscopy and time-resolved resonant inelastic x-ray scattering studies

Szlachetko

Nachtegaal

Boni

et al. 2012

Review of Scientific Instruments

167

145

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We report on the design and performance of a wavelength-dispersive type spectrometer based on the von Hamos geometry. The spectrometer is equipped with a segmented-type crystal for x-ray diffraction and provides an energy resolution in the order of 0.25 eV and 1 eV over an energy range of 8000 eV-9600 eV. The use of a segmented crystal results in a simple and straightforward crystal preparation that allows to preserve the spectrometer resolution and spectrometer efficiency. Application of the spectrometer for time-resolved resonant inelastic x-ray scattering and single-shot x-ray emission spectroscopy is demonstrated.

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“…XRD data were collected in reflection geometry using a Mythen detector. 18 Samples were mounted in a specially developed cell. 19 Bipolar electric fields were applied using step-triangular waveforms with a maximum amplitude of 2.8 kV/mm in 0.28 kV/mm steps for PZT and 5 kV/mm in 0.5 kV/mm steps for BNT-6.25BT.…”

mentioning

confidence: 99%

The effect of inter-granular constraints on the response of polycrystalline piezoelectric ceramics at the surface and in the bulk

Hossain

Wang

Khansur

et al. 2016

Applied Physics Letters

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The electro-mechanical coupling mechanisms in polycrystalline ferroelectric materials, including a soft PbZrxTi1−xO3 (PZT) and lead-free 0.9375(Bi1/2Na1/2)TiO3-0.0625BaTiO3 (BNT-6.25BT), have been studied using a surface sensitive low-energy (12.4 keV) and bulk sensitive high-energy (73 keV) synchrotron X-ray diffraction with in situ electric fields. The results show that for tetragonal PZT at a maximum electric field of 2.8 kV/mm, the electric-field-induced lattice strain (ε111) is 20% higher at the surface than in the bulk, and non-180° ferroelectric domain texture (as indicated by the intensity ratio I002/I200) is 16% higher at the surface. In the case of BNT-6.25BT, which is pseudo-cubic up to fields of 2 kV/mm, lattice strains, ε111 and ε200, are 15% and 20% higher at the surface, while in the mixed tetragonal and rhombohedral phases at 5 kV/mm, the domain texture indicated by the intensity ratio, I111/I111¯ and I002/I200, are 12% and 10% higher at the surface than in the bulk, respectively. The observed difference in the strain contributions between the surface and bulk is suggested to result from the fact that surface grains are not constrained in three dimensions, and consequently, domain reorientation and lattice expansion in surface grains are promoted. It is suggested that the magnitude of property difference between the surface and bulk is higher for the PZT than for BNT-6.25BT due to the level of anisotropy in the strain mechanism. The comparison of the results from different methods demonstrates that the intergranular constraints have a significant influence on the electric-field-induced electro-mechanical responses in polycrystalline ferroelectrics. These results have implications for the design of higher performance polycrystalline piezoelectrics.

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Mythen detector system

Cited by 202 publications

References 3 publications

Influence of lanthanum doping on the morphotropic phase boundary of lead zirconate titanate

Influence of lanthanum doping on the morphotropic phase boundary of lead zirconate titanate

A von Hamos x-ray spectrometer based on a segmented-type diffraction crystal for single-shot x-ray emission spectroscopy and time-resolved resonant inelastic x-ray scattering studies

The effect of inter-granular constraints on the response of polycrystalline piezoelectric ceramics at the surface and in the bulk

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