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Evidence for the Single-Site Quadrupolar Kondo Effect in the Dilute Non-Kramers System Y1-xPrxIr2Zn20

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Title: Evidence for the Single-Site Quadrupolar Kondo Effect in the Dilute Non-Kramers System Y1-xPrxIr2Zn20
Authors: Yanagisawa, T. Browse this author
Hidaka, H. Browse this author
Amitsuka, H. Browse this author
Zherlitsyn, S. Browse this author
Wosnitza, J. Browse this author
Yamane, Y. Browse this author
Onimaru, T. Browse this author
Issue Date: 6-Aug-2019
Publisher: American Physical Society (APS)
Journal Title: Physical Review Letters
Volume: 123
Issue: 6
Start Page: 067201
Publisher DOI: 10.1103/PhysRevLett.123.067201
Abstract: Acoustic signatures of the single-site quadrupolar Kondo effect in Y0.966Pr0.034Ir2Zn20 are presented. The elastic constant (C-11 - C-12)/2, corresponding to the Gamma(3)(E)-symmetry electric-quadrupolar response, reveals a logarithmic temperature dependence of the quadrupolar susceptibility in the low-magnetic-field region below similar to 0.3 K. Furthermore, the Curie-type divergence of the elastic constant down to similar to 1 K indicates that the Pr ions in this diluted system have a non-Kramers ground-state doublet. These observations evidence the single-site quadrupolar Kondo effect, as previously suggested based on specific-heat and electrical-resistivity data.
Rights: ©2019 American Physical Society
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 柳澤 達也

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