Abstract
We report the crystal structure and highly anisotropic magnetic, transport, and thermal properties of an exceptionally good single crystal of , prepared using a modified Czochralski method. Our study, that also includes neutron diffraction results, shows all the heavy-fermion signatures of pristine ; however, the superconductivity, hidden order, and remnant weak antiferromagnetic orders are absent. Instead, the ground state of the doped system can be classified as a spin liquid that preserves the heavy-fermion character. exhibits a short-range magnetic order distinguished by reflections of a Lorentzian profile at positions that disappear above K. The short-range order seems to be a precursor of a long-range magnetic order that occurs with higher Rh concentration. We indicate that these short-range fluctuations involve, at least partially, inelastic scattering processes.
6 More- Received 5 October 2016
- Revised 13 December 2016
DOI:https://doi.org/10.1103/PhysRevB.95.035138
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