Scientist
Group leader TAS
Scientific project leader of FlatCone
kulda(at)ill.eu
Research field:
Neutron Spectroscopy
Neutron optics
My scientific interests range from neutron optics over computer simulation [http://omega.ujf.cas.cz/restrax/], design and construction of neutron spectrometers [1,2] to their use for spectroscopy of elementary excitations in condensed matter. The latter includes both conventional [3-5] and high-resolution [6] TAS studies of lattice dynamics and polarized neutron investigations of spin systems [7-10].
Selection of Publications: | [1] Elastically bent silicon monochromator and analyzer on a three axis thermal neutron spectrometer, J.Kulda & J.Saroun, Nucl. Inst. Meth. A379 (1996) 155-166. |
| | [2] IN20 – the ILL high flux polarised three-axis spectrometer, J. Kulda, J. Saroun, P. Courtois, M. Enderle, M. Thomas, P. Flores, Appl. Phys. A74 [Suppl.] (2002) S246-S248 |
| | [3] On the nature of the resonant soft mode in Rochelle salt, J. Hlinka, J. Kulda, S. Kamba, J. Petzelt, Phys. Rev. B 63 (2001) 052102 |
| | [4] Origin of the "waterfall" effect in the phonon dispersion of relaxor perovskites, Hlinka J., Kamba S., Petzelt J, Kulda J., Randall C.A., Zhang S.J., Phys. Rev. Lett. 91 (2003) 107602 |
| | [5] Overbending of the longitudinal optical phonon branch in diamond evidenced by inelastic neutron- and X-ray scattering, J. Kulda, H. Kainzmaier, D. Strauch, B. Dorner, M. Lorenzen, M. Krisch, Phys. Rev. B66 (2002) 201202. | | | [6] Self-energy of zone-boundary phonons in germanium: Ab initio calculations versus neutron spin-echo measurements, J. Kulda, A. Debernardi, M. Cardona, F. de Geuser, E. Haller, Phys. Rev. B 69 (2004) 045209 | | | [7] Nearly singular magnetic fluctuations in the normal state of a high-Tc superconductor, G. Aeppli, T.E. Mason, S.M. Hayden, H.A. Mook, J. Kulda, Science 278 (1997) 1432-1435 | | | [8] Polarized-Neutron Scattering Study of the Cooper-Pair Moment in Sr2RuO4, J.A. Duffy, S.M. Hayden, Y. Maeno, Z. Mao, J. Kulda, G.J. McIntyre Phys. Rev. Lett. 85 (2000) 5412-5415. | | | [9] Chiral critical exponents in the triangular-lattice antiferromagnet CsMnBr3 as determined by polarised neutron scattering, V.P. Plakhty, J. Kulda, D. Visser, E. Moskvin, J. Wosnitza Phys. Rev. Lett. 85 (2000) 3942-3945. | | | [10] Local symmetry of the crystal field hamiltonian in CePtSn, B. Janousova, J. Kulda, M. Divis, V. Sechovsky, T. Komatsubara, Phys. Rev. B69 (2004) 220412 |
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