Strong uniaxial crystal field and ising like exchange interaction of ferromagnet CeAgSb2

S. Araki; N. Metoki; A. Thamizhavel; Y. Onuki

doi:10.1016/j.jmmm.2003.12.1258

Strong uniaxial crystal field and ising like exchange interaction of ferromagnet CeAgSb₂

S. Araki, N. Metoki, A. Thamizhavel, Y. Onuki

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

Abstract

Neutron scattering experiments have been performed to reveal the magnetic excitation in ferromagnet CeAgSb₂. Crystalline electric field excitations were observed at 5.2 and 12.5meV in the paramagnetic state. Our analysis concluded that | ± 1/2〉 is the ground state. The observed ferromagnetic moment is in good agreement with the ground-state saturation moment, g_Jμ_BJ_z ∼ 0.43 μ_B. The spontaneous moment along the c-axis decreases with increasing the field perpendicular to the c-axis, and disappear at the critical field H_c, where the magnetization curve shows the kink behavior.

Original language	English
Pages (from-to)	e399-e400
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jmmm.2003.12.1258
Publication status	Published - May 2004
Externally published	Yes

Keywords

CeAgSb
Crystal field
Ferromagnet
Neutron scattering
Spin wave

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2003.12.1258

Cite this

@article{7a0fb9039ad641059d5c9de33fa234e8,

title = "Strong uniaxial crystal field and ising like exchange interaction of ferromagnet CeAgSb2",

abstract = "Neutron scattering experiments have been performed to reveal the magnetic excitation in ferromagnet CeAgSb2. Crystalline electric field excitations were observed at 5.2 and 12.5meV in the paramagnetic state. Our analysis concluded that | ± 1/2〉 is the ground state. The observed ferromagnetic moment is in good agreement with the ground-state saturation moment, gJμBJz ∼ 0.43 μB. The spontaneous moment along the c-axis decreases with increasing the field perpendicular to the c-axis, and disappear at the critical field Hc, where the magnetization curve shows the kink behavior.",

keywords = "CeAgSb, Crystal field, Ferromagnet, Neutron scattering, Spin wave",

author = "S. Araki and N. Metoki and A. Thamizhavel and Y. Onuki",

note = "Funding Information: The authors would like to thank T. Takeuchi, T. Takimoto, K. Kubo, Y. Inada, and K. Sugiyama for stimulating discussions. We also thank Y. Koike and K. Kaneko for their technical assistance. Part of this work was financially supported by the Grant-in-Aid for COE Research (10CE2004) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.",

year = "2004",

month = may,

doi = "10.1016/j.jmmm.2003.12.1258",

language = "English",

volume = "272-276",

pages = "e399--e400",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

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TY - JOUR

T1 - Strong uniaxial crystal field and ising like exchange interaction of ferromagnet CeAgSb2

AU - Araki, S.

AU - Metoki, N.

AU - Thamizhavel, A.

AU - Onuki, Y.

N1 - Funding Information: The authors would like to thank T. Takeuchi, T. Takimoto, K. Kubo, Y. Inada, and K. Sugiyama for stimulating discussions. We also thank Y. Koike and K. Kaneko for their technical assistance. Part of this work was financially supported by the Grant-in-Aid for COE Research (10CE2004) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

PY - 2004/5

Y1 - 2004/5

N2 - Neutron scattering experiments have been performed to reveal the magnetic excitation in ferromagnet CeAgSb2. Crystalline electric field excitations were observed at 5.2 and 12.5meV in the paramagnetic state. Our analysis concluded that | ± 1/2〉 is the ground state. The observed ferromagnetic moment is in good agreement with the ground-state saturation moment, gJμBJz ∼ 0.43 μB. The spontaneous moment along the c-axis decreases with increasing the field perpendicular to the c-axis, and disappear at the critical field Hc, where the magnetization curve shows the kink behavior.

AB - Neutron scattering experiments have been performed to reveal the magnetic excitation in ferromagnet CeAgSb2. Crystalline electric field excitations were observed at 5.2 and 12.5meV in the paramagnetic state. Our analysis concluded that | ± 1/2〉 is the ground state. The observed ferromagnetic moment is in good agreement with the ground-state saturation moment, gJμBJz ∼ 0.43 μB. The spontaneous moment along the c-axis decreases with increasing the field perpendicular to the c-axis, and disappear at the critical field Hc, where the magnetization curve shows the kink behavior.

KW - CeAgSb

KW - Crystal field

KW - Ferromagnet

KW - Neutron scattering

KW - Spin wave

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DO - 10.1016/j.jmmm.2003.12.1258

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VL - 272-276

SP - e399-e400

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

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