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Title: Dual nature of 3 d electrons in YbT 2 Zn 20 (T = Co; Fe) evidenced by electron spin resonance

The electron spin resonance experiments were carried out in the single crystals YbFe2Zn20. The observed spin dynamics is compared with that in YbCo2Zn20 and Yb2Co12P7 as well as with the data of inelastic neutron scattering and electronic band structure calculations. Our results provide direct evidence that 3d electrons are itinerant in YbFe2Zn20 and localized in YbCo2Zn20. Possible connection between spin paramagnetism of dense heavy fermion systems, quantum criticality effects, and ESR spectra is discussed.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3]
  1. Kazan Federal Univ. (Russia)
  2. Zavoisky Physical-Technical Inst., Kazan (Russia)
  3. Ames Lab., Ames, IA (United States)
Publication Date:
OSTI Identifier:
1203504
Grant/Contract Number:
AC02-07CH11358
Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series (Online)
Additional Journal Information:
Journal Name: Journal of Physics. Conference Series (Online); Journal Volume: 592; Journal ID: ISSN 1742-6596
Publisher:
Institute of Physics (IOP)
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Kazan Federal Univ. (Russia)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE