Crystalline electric field effect and magnetic properties of CeRhSi 3 single crystal

Y. Muro; M. Ishikawa; K. Hirota; Z. Hiroi; N. Takeda; N. Kimura; H. Aoki

doi:10.1143/JPSJ.76.033706

Crystalline electric field effect and magnetic properties of CeRhSi ₃ single crystal

Y. Muro, M. Ishikawa, K. Hirota, Z. Hiroi, N. Takeda, N. Kimura, H. Aoki

SCI - Physics

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

33 Citations (Scopus)

Abstract

We have studied the crystalline electric-field effect of the noncentrosymmetric heavy-fermion antiferromagnet CeRhSi₃ by measuring the magnetic susceptibility χ(T), specific heat C_p(T) and inelastic neutron scattering. The 4f level scheme determined from χ agrees with a magnetic excitation observed in the inelastic neutron spectra and the Schottky anomaly in the magnetic part of C_p . Moreover, we have measured C_p under various magnetic fields B up to 8 T and observed that the Néel temperature T_N decreases proportionally to B² for B ∥ a-axis while the B dependence of T_N is rather small for B ∥ caxis. This anisotropic behavior suggests that the antiferromagnetically ordered moments lie in the tetragonal c-plane.

Original language	English
Article number	033706
Journal	Journal of the Physical Society of Japan
Volume	76
Issue number	3
DOIs	https://doi.org/10.1143/JPSJ.76.033706
Publication status	Published - 2007 Mar

Keywords

CeRhSi
Crystalline electric field
Heavy fermion
Single crystal

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10.1143/JPSJ.76.033706

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abstract = "We have studied the crystalline electric-field effect of the noncentrosymmetric heavy-fermion antiferromagnet CeRhSi3 by measuring the magnetic susceptibility χ(T), specific heat Cp(T) and inelastic neutron scattering. The 4f level scheme determined from χ agrees with a magnetic excitation observed in the inelastic neutron spectra and the Schottky anomaly in the magnetic part of Cp . Moreover, we have measured Cp under various magnetic fields B up to 8 T and observed that the N{\'e}el temperature TN decreases proportionally to B2 for B ∥ a-axis while the B dependence of TN is rather small for B ∥ caxis. This anisotropic behavior suggests that the antiferromagnetically ordered moments lie in the tetragonal c-plane.",

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T1 - Crystalline electric field effect and magnetic properties of CeRhSi 3 single crystal

AU - Muro, Y.

AU - Ishikawa, M.

AU - Hirota, K.

AU - Hiroi, Z.

AU - Takeda, N.

AU - Kimura, N.

AU - Aoki, H.

PY - 2007/3

Y1 - 2007/3

N2 - We have studied the crystalline electric-field effect of the noncentrosymmetric heavy-fermion antiferromagnet CeRhSi3 by measuring the magnetic susceptibility χ(T), specific heat Cp(T) and inelastic neutron scattering. The 4f level scheme determined from χ agrees with a magnetic excitation observed in the inelastic neutron spectra and the Schottky anomaly in the magnetic part of Cp . Moreover, we have measured Cp under various magnetic fields B up to 8 T and observed that the Néel temperature TN decreases proportionally to B2 for B ∥ a-axis while the B dependence of TN is rather small for B ∥ caxis. This anisotropic behavior suggests that the antiferromagnetically ordered moments lie in the tetragonal c-plane.

AB - We have studied the crystalline electric-field effect of the noncentrosymmetric heavy-fermion antiferromagnet CeRhSi3 by measuring the magnetic susceptibility χ(T), specific heat Cp(T) and inelastic neutron scattering. The 4f level scheme determined from χ agrees with a magnetic excitation observed in the inelastic neutron spectra and the Schottky anomaly in the magnetic part of Cp . Moreover, we have measured Cp under various magnetic fields B up to 8 T and observed that the Néel temperature TN decreases proportionally to B2 for B ∥ a-axis while the B dependence of TN is rather small for B ∥ caxis. This anisotropic behavior suggests that the antiferromagnetically ordered moments lie in the tetragonal c-plane.

KW - CeRhSi

KW - Crystalline electric field

KW - Heavy fermion

KW - Single crystal

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Crystalline electric field effect and magnetic properties of CeRhSi ₃ single crystal

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