-electron states in RPdAl (R: Pr, Nd)

Metoki, Naoto ; Yamauchi, Hiroki ; Kitazawa, Hideaki*; Suzuki, Hiroyuki*; Hagihara, Masato* ; Masuda, Takatsugu*; Matsuda, Masaaki*; Aczel, A. A.*; Songxue, C.*; Hong, T.*; Pajerowski, D.*; Fernandez-Baca, J. A.*; Kamazawa, Kazuya*; Ikeuchi, Kazuhiko*; Kajimoto, Ryoichi ; Nakamura, Mitsutaka ; Inamura, Yasuhiro

In order to elucidate the 5-electron states in the heavy electron superconductor NpPdAl, neutron scattering experiments of the rare earth based iso-structural family have been carried out. The observed crystal field excitations of PrPdAl and NdPdAl were analyzed via the crystal field Hamiltonian with tetragonal symmetry, diagonalized analytically. The experimentally obtained crystal field parameters $A_{lm}$ were very similar in CePdAl, PrPdAl, and NdPdAl, indicating a common effective charge potential in this series. We succeeded to clarify the 5 electron states of NpPdAl and UPdAl in comparison with these results.

Language	:	Japanese
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Meeting title	:	日本物理学会2019年秋季大会(物性)
Held date	:	2019/09
Location (city)	:	岐阜
Location (country)	:	日本
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Keywords	:	PrPd5Al2; NsPd5Al2; NpPd5Al2; UPd5Al2
Research Facility	:	J-PARC物質・生命科学実験施設
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Registration No. : BB20182177
JAEA Abstracts No. :
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