Experimental study of physical properties in the complex magnetic phase diagram of Ce(Rh1-xRux)3B2
Abstract
We report on a series of structural, magnetic, and thermodynamic measurements, a study of transport properties and x-ray absorption edge spectroscopy on Ce(Rh1-xRux)3B2. These investigations evidence that in addition to the already established ferromagnetic range for x<=0.06, a complex antiferromagnetic structure exists for concentrations 0.1<=x<=0.35. The behavior in the latter regime is dominated by an extraordinary strong intersite coupling; however, the magnetic moments involved appear to be very small. At the phase boundary to the paramagnetic regime (x~0.4), significant deviations from a Fermi-liquid behavior occur.
- Publication:
-
Physical Review B
- Pub Date:
- October 2001
- DOI:
- 10.1103/PhysRevB.64.134404
- Bibcode:
- 2001PhRvB..64m4404B
- Keywords:
-
- 75.20.Hr;
- 75.30.Kz;
- 78.70.Dm;
- 71.10.Hf;
- Local moment in compounds and alloys;
- Kondo effect valence fluctuations heavy fermions;
- Magnetic phase boundaries;
- X-ray absorption spectra;
- Non-Fermi-liquid ground states electron phase diagrams and phase transitions in model systems