Crystal field excitation linewidths in (LnXY1-x) Ba2Cu3O7 (Ln = Er, Ho, Tm)

A. Mukherjee; A. T. Boothroyd; J. S. Gardner

doi:10.1016/0921-4534(94)92075-3

Crystal field excitation linewidths in (Ln_XY_1-x) Ba₂Cu₃O₇ (Ln = Er, Ho, Tm)

A. Mukherjee, A. T. Boothroyd, J. S. Gardner

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Abstract

We have studied the temperature dependence of crystal field (CF) excitation linewidths of lanthanide ions (Er and Ho) in YBa₂Cu₃O₇ by neutron scattering. The Ho data reveal an anomaly in the CF damping around T_c with no evidence of a coherence peak below T_c. We have applied the theory of Becker, Fulde and Keller to derive the reduced s-f coupling constants from the CF linewidth data for the ions Er, Ho and Tm.

Original language	English
Pages (from-to)	1707-1708
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	235-240
Issue number	PART 3
DOIs	https://doi.org/10.1016/0921-4534(94)92075-3
State	Published - Dec 1994
Externally published	Yes

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AU - Boothroyd, A. T.

AU - Gardner, J. S.

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AB - We have studied the temperature dependence of crystal field (CF) excitation linewidths of lanthanide ions (Er and Ho) in YBa2Cu3O7 by neutron scattering. The Ho data reveal an anomaly in the CF damping around Tc with no evidence of a coherence peak below Tc. We have applied the theory of Becker, Fulde and Keller to derive the reduced s-f coupling constants from the CF linewidth data for the ions Er, Ho and Tm.

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ER -

Crystal field excitation linewidths in (Ln_XY_1-x) Ba₂Cu₃O₇ (Ln = Er, Ho, Tm)

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