Cyclotron resonance experiments in Yb4(As0.6P0.4)3 and Yb4(As0.71Sb0.29)3

R. Pittini; H. Nojiri; M. Motokawa; A. Ochiai; T. Suzuki

doi:10.1016/S0921-4526(97)00959-9

Cyclotron resonance experiments in Yb₄(As_0.6P_0.4)₃ and Yb₄(As^0.71Sb_0.29)₃

R. Pittini, H. Nojiri, M. Motokawa, A. Ochiai, T. Suzuki

Institute for Materials Research (IMR) (institute affiliation only)

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

To investigate about the effective mass of the carriers at the Fermi level, we carried out cyclotron resonance experiments in single crystals of the intermediate valent systems Yb₄(As_0.6P_0.4)₃ and Yb₄(As_0.71Sb_0.29)₃ at several frequencies above 95 GHz. In the former material, a strong double cyclotron resonance absorption indicates cyclotron masses of 0.60 and 0.87m_e, while in the latter material no cyclotron absorption was observed up to 18 T. This excludes the possibility of Yb₄(As_0.6P_0.4)₃ to be a heavy fermion and indicates a lower limit of 5.3m_e for the cyclotron mass in Yb₄(As_0.71Sb_0.29)₃.

Original language	English
Pages (from-to)	452-455
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	246-247
DOIs	https://doi.org/10.1016/S0921-4526(97)00959-9
Publication status	Published - 1998 May 29

Keywords

Cyclotron resonance
Heavy fermion

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(97)00959-9

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title = "Cyclotron resonance experiments in Yb4(As0.6P0.4)3 and Yb4(As0.71Sb0.29)3",

abstract = "To investigate about the effective mass of the carriers at the Fermi level, we carried out cyclotron resonance experiments in single crystals of the intermediate valent systems Yb4(As0.6P0.4)3 and Yb4(As0.71Sb0.29)3 at several frequencies above 95 GHz. In the former material, a strong double cyclotron resonance absorption indicates cyclotron masses of 0.60 and 0.87me, while in the latter material no cyclotron absorption was observed up to 18 T. This excludes the possibility of Yb4(As0.6P0.4)3 to be a heavy fermion and indicates a lower limit of 5.3me for the cyclotron mass in Yb4(As0.71Sb0.29)3.",

keywords = "Cyclotron resonance, Heavy fermion",

author = "R. Pittini and H. Nojiri and M. Motokawa and A. Ochiai and T. Suzuki",

year = "1998",

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journal = "Physica B: Condensed Matter",

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TY - JOUR

T1 - Cyclotron resonance experiments in Yb4(As0.6P0.4)3 and Yb4(As0.71Sb0.29)3

AU - Pittini, R.

AU - Nojiri, H.

AU - Motokawa, M.

AU - Ochiai, A.

AU - Suzuki, T.

PY - 1998/5/29

Y1 - 1998/5/29

N2 - To investigate about the effective mass of the carriers at the Fermi level, we carried out cyclotron resonance experiments in single crystals of the intermediate valent systems Yb4(As0.6P0.4)3 and Yb4(As0.71Sb0.29)3 at several frequencies above 95 GHz. In the former material, a strong double cyclotron resonance absorption indicates cyclotron masses of 0.60 and 0.87me, while in the latter material no cyclotron absorption was observed up to 18 T. This excludes the possibility of Yb4(As0.6P0.4)3 to be a heavy fermion and indicates a lower limit of 5.3me for the cyclotron mass in Yb4(As0.71Sb0.29)3.

AB - To investigate about the effective mass of the carriers at the Fermi level, we carried out cyclotron resonance experiments in single crystals of the intermediate valent systems Yb4(As0.6P0.4)3 and Yb4(As0.71Sb0.29)3 at several frequencies above 95 GHz. In the former material, a strong double cyclotron resonance absorption indicates cyclotron masses of 0.60 and 0.87me, while in the latter material no cyclotron absorption was observed up to 18 T. This excludes the possibility of Yb4(As0.6P0.4)3 to be a heavy fermion and indicates a lower limit of 5.3me for the cyclotron mass in Yb4(As0.71Sb0.29)3.

KW - Cyclotron resonance

KW - Heavy fermion

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