Gapped Excitation in Dense Kondo Lattice CePtZn

Published

January 10, 2017

Author(s)

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

Abstract

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 T_N = 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.

Citation

Physical Review B

Volume

95

Issue

4

Pub Type

Journals

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Keywords

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

Citation

, L. , , S. , Gunasekera, J. , , J. , Pixley, J. , Manfrinetti, P. , , S. and , D. (2017), Gapped Excitation in Dense Kondo Lattice CePtZn, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921926 (Accessed April 19, 2024)