6533b850fe1ef96bd12a82eb

RESEARCH PRODUCT

Magnetic resonances in low-dimensional spin systems

M. SteinerA. ChennaouiH. KriegelsteinM. EnderleO. BornW. PalmeB. Lüthi

subject

PhysicsCoupling constantRange (particle radiation)Condensed matter physicsCondensed Matter PhysicsSpin (physics)AnisotropyElectronic Optical and Magnetic Materials

description

Abstract We present magnetic resonance experiments in the frequency range of 35 to 460 GHz at low temperatures (1.5 K) for the two compounds CsNiCl 3 and (CH 3 ) 4 NMnCl 3 (TMMC). In both cases the large frequency range enables us to make a precise determination of the various coupling constants (exchange interactions and anisotropy parameters). For CsNiCl 3 we found a larger interchain exchange than previously determined. These constants can then be used for a critical evaluation of other related experiments. In TMMC we found resonances which cannot be explained by existing models.

https://doi.org/10.1016/0304-8853(92)90368-x