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Gapped Excitation in Dense Kondo Lattice CePtZn



Leland Weldon Harriger, Steven M.T. Disseler, J. Gunasekera, Jose A. Rodriguez, J. Pixley, P. Manfrinetti, S. K. Dhar, D. K. Singh


We report on neutron υSR scattering studies of dense Kondo lattice CePtZn. The system develops long range incommensurate magnetic order as the temperature is reduced below TN = 1.75 K. Interesting, a Q-indpenedent characteristic and its persistence to high temperature hint that the gapped excitation may be manifesting the excited state of the ground state doublet of the crystal-field energy levels. However, the observed broadness in the line-width with distinct temperature and field dependencies makes it a non-trival phenomenon. Qualitative analysis of the experimental data suggests the possible co-existence of a local critical behavior, which is onset near the critical field of H {approximately equal to} 3 T, with the crystal field excitation in the dynamic properties.
Physical Review B


heavy fermion, magnetism, kondo lattice, crystal field, incommensurate order


, L. , , S. , Gunasekera, J. , , J. , Pixley, J. , Manfrinetti, P. , , S. and , D. (2017), Gapped Excitation in Dense Kondo Lattice CePtZn, Physical Review B, [online], (Accessed April 18, 2024)
Created January 10, 2017, Updated September 21, 2017