Speaker
Andrei Pimenov
(Vienna University of Technology)
Description
Anna Pimenov (1), Ch. Kant (1), V. Tsurkan (2), A. Loidl (2), A. Vasiliev (3), L. Svistov (3) , L. Prozorova (3), A. Pimenov (1)
(1) Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria
(2) Experimentalphysik V, EKM, University of Augsburg, 86159 Augsburg, Germany
(3) Kapitza Institute of Physical Problems, 119334 Moscow, Russia
We describe the preparation routes for the series of polycrystalline ACrO2
(A= Cu, Ag, Li, Pd) chromates using a solid-state reaction technique at different temperatures and partly using a two-stage substitution procedure. All samples have been characterized using X-ray and magnetic measurements. In addition, single crystals of CuCrO2 have been grown by flux method.
CuCrO2 and AgCrO2 have been investigated using high field Electron-Spin-Resonance spectroscopy and quasioptical transmittance technique in the frequency range between 70 GHz and 600 GHz. Two eigenmodes of the antiferromagnetic resonance can be detected. Clear signatures of the spin-flop transition are observed for specific magnetic domains in CuCrO2.
Primary author
Andrei Pimenov
(Vienna University of Technology)
