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Crystal-field splitting and magnetic relaxation inCeCu20.2Si2
- Source :
- Physical Review B. 39:6409-6419
- Publication Year :
- 1989
- Publisher :
- American Physical Society (APS), 1989.
-
Abstract
- We present the results of two types of inelastic neutron scattering experiments on the heavy-fermion system ${\mathrm{CeCu}}_{2\ifmmode\pm\else\textpm\fi{}0.2}$${\mathrm{Si}}_{2}$ to investigate the quasielastic scattering (low-energy response) and the crystal-field (CF) excitations (high-energy response). A characteristic energy width of about 0.7 meV is found for the magnetic low-energy response at low temperatures, and the CF scheme given earlier for ${\mathrm{CeCu}}_{2}$${\mathrm{Si}}_{2}$ is roughly confirmed. The inelastic spectrum of ${\mathrm{CeCu}}_{2.2}$${\mathrm{Si}}_{2}$ gives some indications for a coexistence of \ensuremath{\gamma}-cerium and \ensuremath{\alpha}-cerium. The scattering intensities are compared with static susceptibility measurements.
Details
- ISSN :
- 01631829
- Volume :
- 39
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........86372e556559511296e5e471dac97f2c