Search Results - "KÖBLER, U"

The boson-based quantized dynamics of solids by Köbler, U.

“…Available experimental data of the Debye temperature (ΘD) and of the coefficient of the low-temperature electronic heat capacity (γ) of the condensed elements…”
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Thermal decay of magnons in MnF2 by Köbler, U.

“…•The magnetic ordering transition is not executed by the exchange interactions between the spins.•At the magnetic ordering transition, a boson field…”
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On the precise value of the magnetic ordering temperature by Köbler, U.

“…•Boson fields can order.•Ordering is possible if the bosons are generated by stimulated emission.•The basic ordered boson field is one-dimensional.•At the…”
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Bosonic and magnonic magnon dispersions by Köbler, U.

“…•The dynamics of ordered magnets is controlled by a boson field.•At the magnetic ordering transition the boson field orders.•Typical for ordered boson fields…”
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Crossover phenomena in the critical range near magnetic ordering transition by Köbler, U.

“…•Identification of crossover events in the critical range of the magnetic order parameter.•Demonstration of correct analyses of critical data in the presence…”
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Sample-size dependent temperature dependence of the spontaneous magnetization by Köbler, U.

“…•The magnetic ordering transition is driven by a boson field.•At the magnetic ordering temperature, the boson field orders.•Magnetic domains are the typical…”
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Linear spin chains in paramagnetic and in ordered bulk magnets by Hoser, A., Köbler, U.

“…Published magnon dispersion data are discussed, showing that magnon dispersions of bulk magnets are essentially as for linear spin chains, i.e…”
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Relevant crystal field interaction in the magnetically ordered state by Köbler, U., Radelytskyi, I., Szymczak, H.

“…•The spin dynamics in the long-range ordered state is proven to be quantized.•A relevant crystal electric field removes one or more of the N = 2S + 1 spin…”
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Magnetism of powder samples and of single crystals by Köbler, U., Hoser, A.

“…The temperature dependence of the magnetic order parameter of NiF2, MnCO3 and K2NiF4 measured on powder samples is compared with data obtained on single…”
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Single domain behaviour of bulk RbMnF3 by Köbler, U., Hoser, A.

“…The temperature dependence of the order parameter of antiferromagnetic RbMnF3 has been measured using neutron scattering. After necessary corrections, single…”
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Dimensionality crossover upon magnetic saturation in Fe, Ni and Co by Köbler, U., Hoser, A., Thomas, C.

“…The magnetic saturation process of iron, nickel and cobalt single-crystal spheres is studied using neutron scattering in a vertical magnetic field. It is…”
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Exploring the 2D to 3D dimensionality crossover in thin iron films by Köbler, U., Schreiber, R.

“…The temperature dependence of the spontaneous magnetization of epitaxial iron films with a thickness ranging from d = 2 0 to 200 nm has been measured. The…”
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Stable magnetic universality classes for T→0 by Köbler, U., Hoser, A.

“…In previous experimental investigations we have observed that a single power function of absolute temperature according to 1 – m S ( T ) = c × T ε describes…”
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Effective spin description of crystal field effects in NdAl2 by KÖBLER, U, HOSER, A

“…We propose a new analysis of the paramagnetic susceptibility and the spontaneous magnetization of the ferromagnet NdAl2 (electronic configuration 4I 9/2). As a…”
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The impact of renormalization group theory on magnetism by KÖBLER, U, HOSER, A

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Critical magnetic behaviour in one and two dimensions by Köbler, U., Hoser, A.

“…Critical magnetic data of magnets in which the phase transition is driven by one-dimensional (1D) or two-dimensional (2D) interactions are examined…”
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On the temperature dependence of the magnetic excitations by Köbler, U., Hoser, A., Schäfer, W.

“…We compare experimental data for temperature dependence of the magnetic order parameter and the magnetic excitations (spin waves) in materials with a quenched…”
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First order spin flop transition in yttrium iron garnet (YIG) by Köbler, U., Hoser, A.

“…We have studied the field dependence of the sublattice magnetization of ferrimagnetic yttrium iron garnet (YIG) using neutron scattering. In contrast to the…”
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Universality in the heat capacity of magnetic and superconducting solids for T→0 by Köbler, U., Thomas, C.

“…Experimental heat capacity data of various magnetic and superconducting solids are analyzed empirically. It is observed that in materials in which magnetic and…”
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Complex critical magnetic behaviour in three dimensions by Köbler, U., Hoser, A., Mueller, R.M., Fischer, K.

“…Experimental results on the critical magnetic behaviour of magnets with a three-dimensional (3D) spin and isotropic 3D interactions are presented. It is…”
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