Evidence of Electromagnetic Absorption by Collective Modes in the Heavy Fermion Superconductor UBe13

Bimal K. Sarma; C.-C. Tsai; J.B. Ketterson; J.L. Smith; J.R. Feller

arxiv: cond-mat/0104445 · v1 · submitted 2001-04-23 · ❄️ cond-mat.supr-con · cond-mat.str-el

Evidence of Electromagnetic Absorption by Collective Modes in the Heavy Fermion Superconductor UBe13

J.R. Feller , C.-C. Tsai , J.B. Ketterson , J.L. Smith , Bimal K. Sarma This is my paper

classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords absorptioncollectivefermionheavysuperconductorube13approximatelyclearly

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We present results of a microwave surface impedance study of the heavy fermion superconductor UBe13. We clearly observe an absorption peak whose frequency- and temperature-dependence scales with the BCS gap function. Resonant absorption into a collective mode, with energy approximately proportional to the superconducting gap, is proposed as a possible explantation.

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Evidence of Electromagnetic Absorption by Collective Modes in the Heavy Fermion Superconductor UBe13

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