We present results of PAC measurements in heavy-fermion compound Yb4As3. The quadrupole hyperfine interaction has been investigated over the temperature range 78-850 K. The interpretation of the experimental data yields a microscopic proof of the existence of a charge-ordered state with periodic arrangement of Yb2+ and Yb3+ ions in the low temperature phase. In the high temperature phase all Yb ions are in a valence fluctuating state.
|Number of pages||8|
|Publication status||Published - 1996 Dec 1|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
- Condensed Matter Physics
- Physical and Theoretical Chemistry