Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mutka, A."'
Publikováno v:
New Journal of Physics, Vol 17, Iss 11, p 113035 (2015)
The anhydrous alum KTi(SO _4 ) _2 , where the Ti ^3+ ( d ^1 , S = 1/2) ions form an anisotropic triangular lattice, has been prepared by a new hydrothermal route and characterized by magnetic susceptibility and neutron scattering measurements. Contra
Externí odkaz:
https://doaj.org/article/8f9de0197466487293abd1dff8f4ec8e
Autor:
M. Danot, A. Mellergård, Pavel B. Fabritchnyi, Christophe Payen, C. Ritter, Hannu Mutka, J. R. Stewart, Pierre Bonnet
Publikováno v:
Journal of Physics: Condensed Matter. 16:S835-S842
The low-temperature properties of a diluted antiferromagnetic pyrochlore slab of S = 3/2 spins are investigated through a study of the frustrated oxides Ba 2 Sn 2 Ga 10-7p ZnCr 7p O 22 (p > 0.85). Powder neutron diffraction and 119 Sn Mossbauer absor
Autor:
Hans-Ulrich Güdel, Anja Christina Furrer, Hannu Mutka, G Heigold, N. Cavadini, Karl Krämer, W. Henggeler
Publikováno v:
Journal of Physics: Condensed Matter. 12:5463-5472
KCuCl3 is an S = 1/2 magnetic insulator with a singlet ground state and a finite spin excitation gap. Above the gap, dispersive triplet excitation modes propagate in the whole reciprocal space. From single-crystal inelastic neutron investigations the
Publikováno v:
Europhysics Letters (EPL). 44:498-503
The temperature dependence of the relaxation rate of crystal-field excitations in the slightly underdoped HoBa2Cu4O8 and Er2Ba4Cu7O14.92 high-temperature superconductors has been investigated by means of neutron scattering measurements. Our data show
Publikováno v:
Journal of Physics: Condensed Matter. 4:8945-8960
The behaviour of the coherent scattering functions S(Q, omega ) (where h(cross)Q and h(cross) omega are the momentum and energy transferred in radiation scattering experiments) in the limit of small Q approaching the hydrodynamic limit has been discu
Autor:
H Mutka
Publikováno v:
Journal of Physics: Condensed Matter. 16
The Highly Frustrated Magnetism 2003 conference took place on 26 - 30 August 2003 at the Institut Laue Langevin, Grenoble, France. This meeting was a follow-up to the HFM2000 meeting held in Waterloo, Canada, while another topical meeting took place
Autor:
J. Karpinski, E. Kaldis, C. Vettier, H. Blank, H. Mutka, S. Rusiecki, Albert Furrer, U. Staub, Joël Mesot, P. Allenspach
Publikováno v:
Superconductor Science and Technology. 4:S76-S78
The authors describe the inelastic-neutron-scattering technique to observe the crystal field in high Tc superconductors as a direct probe of the local symmetry and the charge distribution at the rare-earth site. For ErBa2Cu3Ox (6
Publikováno v:
Journal of Physics: Condensed Matter. 20:104241
The dynamic structure factors, S(Q,E), for the Zr70Be30, Zr60Be40 and Zr50Be50 metallic glasses have been measured using neutron inelastic scattering on the IN4 spectrometer (ILL, Grenoble, France), over the range of momentum transfers and energy tra
Publikováno v:
Journal of Physics: Conference Series. 92:012121
Information on the phonon density of states of the nanocage-based superconducting clathrates Ba8Si46 and Ba24Si100 is reported from inelastic neutron scattering experiments. We have observed respectively two Einstein modes corresponding to the two ki
Publikováno v:
Journal of Physics C: Solid State Physics. 15:6305-6319
The properties of electron-irradiation-induced defects in VSe2 are studied by electronic transport, magnetic susceptibility and lattice parameter measurements. A well defined magnetic defect exists in the irradiated samples and it is identified as a