V. Petricek

Reducing the positional modulation of NbO6-octahedra in SrxBa1-xNb2O6 by increasing the Barium content: A single crystal neutron diffraction study at ambient temperature for x=0.61 and x=0.34 (2008)

Schefer, J., Schaniel, D., Petricek, V., Woike, Th., Cousson, A., Woehlecke, M.

We report on the influence of the Barium content on the modulation amplitude in SrxBa1-xNb2O6 compounds by comparing Sr0.61Ba0.39Nb2O6 (SBN61) and Sr0.34Ba0.66Nb2O6 (SBN34). Our single crystal...

Neutron photocrystallography: simulation and experiment (2008)

Schefer, J., Schaniel, D., Petricek, V., Woike, Th.

The investigation of light-induced structural changes by diffractive methods has improved much in the last two decades. We present here the case of neutron photocrystallography for which we have...

A modulated crystal structure in Rb2ZnX4 (X = Cl, Br) - a neutron time-of-flight single-crystal study (2008)

Gutmann, MJ, Petricek, V, Martin, CY, Daoud-Aladine, A

Microstrain-like diffraction-line broadening as exhibited by incommensurate phases in powder diffraction patters (2007)

Leineweber, A., Petricek, V.

Structural properties in Sr0.61a0.39Nb2O6 in the temperature range 10 K to 500 K investigated by high-resolution neutron powder diffraction and specific heat measurements (2006)

Schefer, J., Schaniel, D., Pomjakushin, V., Stuhr, U., Petricek, V., Woike, Th., ...

We report high-resolution neutron powder diffraction on Sr0.61Ba0.39Nb2O6, SBN61, in the temperature range 15-500 K. The results indicate that the low-temperature anomalies (T

The modulated structure of Ba0.39Sr0.61Nb2O6. I. Harmonic solution (2003)

Woike, T., Petricek, V., Dusek, M., Hansen, N. K., Fertey, P., Lecomte, C., ...

The structure of a crystal of Sr0.61Ba0.39Nb2O6 has been solved and refined as an incommensurate structure in five-dimensional superspace. The structure is tetragonal, superspace group P4bm(pp1/2;...

The incommensurate structure of K3In(PO4)(2) (2003)

Arakcheeva, A., Chapuis, G., Petricek, V., Dusek, M., Schönleber, A.

The incommensurately modulated structure of K3In(PO4)(2) has been solved and refined. The origin of the modulation relates to the ordering of K cations within the hexagonal close packing of the PO4...

Rietveld refinements with Jana2000 (2001)

Dusek, M., Petricek, V., Wunschel, M., Dinnebier, R. E., Van Smaalen, S.

The modulated and composite model descriptions of La2Co1.7 (2001)

Dusek, M., Chapuis, G., Schobinger-Papamantellos, P., Wilkinson, C., Petricek, V.

Five-dimensional structure refinement of natural melilite, (Ca1.89Sr0.01Na0.08K0.02)(Mg0.92Al0.08)-(Si1.98Al0.02)O-7 (2001)

Bindi, L., Bonazzi, P., Dusek, M., Petricek, V., Chapuis, G.

The structure of a crystal of natural melilite from San Venanzo, Umbria (Italy) of the general formula X(2)T1(T2)(2)O-7, where X = Ca0.945Sr0.005Na0.04K0.01, T1 = Mg0.92Al0.08 and T2 = Si0.99Al0.01,...

Modulated structure of La2Co1.7 from neutron and X-ray diffraction data (2000)

Dusek, M., Chapuis, G., Schobinger-Papamantellos, P., Wilkinson, C., Petricek, V., Tung, L.D., ...

Modulated structure of La2Co1.7 from neutron and X-ray diffraction data (2000)

Dusek, M., Chapuis, G., Schobinger-Papamantellos, P., Wilkinson, C., Petricek, V., Tung, L. D., ...

An La2Co1.7 crystal was investigated by single-crystal neutron and X-ray diffraction. The neutron measurement was performed with a Laue white-beam technique at 15 K and room temperature, using a...

Hexamethylenetetramine Sebacate, an Incommensurate Structure With Large Nonsinusoidal Modulations - Comparison of Two Refinement Strategies (1998)

Gaillard, V. B., Chapuis, G., Dusek, M., Petricek, V.

The organic salt hexamethylenetetramine sebacate presents a 1D modulation with strong satellite reflections. Single-crystal X-ray intensities of main reflections and satellites up to sixth order have...