Browsing by Author "Kant C."

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Exchange-induced magnetic dipole mechanism of magnon sideband

Eremin M.; Deisenhofer J.; Fayzullin M.; Kant C.; Loidl A. (2011)

We propose a new mechanism of exciton-magnon absorption in the 1D Heisenberg antiferromagnet KCuF3. It yields the correct description of the relative intensity of the spectral lines in both polarizations E⊥ c and E∥c. The ...
Optical evidence for symmetry changes above the Néel temperature of KCuF3

Deisenhofer J.; Leonov I.; Eremin M.; Kant C.; Ghigna P.; Mayr F.; Iglamov V.; Anisimov V.; Van Der Marel D. (2008)

We report on optical measurements of the 1D Heisenberg antiferromagnet KCuF3. The crystal-field excitations of the Cu2+ ions have been observed and their temperature dependence can be understood in terms of magnetic and ...
Optical spectroscopy in CoO: Phononic, electric, and magnetic excitation spectrum within the charge-transfer gap

Kant C.; Rudolf T.; Schrettle F.; Mayr F.; Deisenhofer J.; Lunkenheimer P.; Eremin M.; Loidl A. (2008)

The reflectivity of single-crystalline CoO has been studied by optical spectroscopy for wave numbers ranging from 100 to 28 cm-1 and for temperatures 8<T<325 K. A splitting of the cubic IR-active phonon mode on passing the ...

Now showing items 1-3 of 3

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