Magnetic behaviour of TbCu4Ag and DyCu4Ag

D. Kaczorowski; M. B. Tchoula Tchokonte; A. M. Strydom; P. De

doi:10.1016/S0304-8853(00)00364-4

Magnetic behaviour of TbCu₄Ag and DyCu₄Ag

D. Kaczorowski, M. B. Tchoula Tchokonte, A. M. Strydom, P. De

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

5 Citations (Scopus)

Abstract

The temperature dependences of DC and AC magnetisation, electrical resistivity and magnetoresistivity of TbCu₄Ag and DyCu₄Ag are reported. In contrast to previous studies which indicate TbCu₄Ag to be a simple antiferromagnet and DyCu₄Ag to be a ferromagnet, our study indicates a more complicated behaviour for these materials. We observe three magnetic transitions for TbCu₄Ag, viz. at T_C = 20 K, T₁ = 11 K and T₂ = 2.5 K. At temperatures T ≤ 10 K the magnetic isotherms show metamagnetic behaviour, while for T₁ ≤ T ≤ T_C our results suggest canted antiferromagnetism. For DyCu₄Ag magnetic transitions are observed at T_C = 19 K and in the vicinity of 5 K. Also for this material there is evidence suggesting a canted antiferromagnetic spin structure.

Original language	English
Pages (from-to)	238-246
Number of pages	9
Journal	Journal of Magnetism and Magnetic Materials
Volume	218
Issue number	2
DOIs	https://doi.org/10.1016/S0304-8853(00)00364-4
Publication status	Published - 1 Aug 2000
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/S0304-8853(00)00364-4

Cite this

@article{936e9aade2a74bf08569774876a70580,

title = "Magnetic behaviour of TbCu4Ag and DyCu4Ag",

abstract = "The temperature dependences of DC and AC magnetisation, electrical resistivity and magnetoresistivity of TbCu4Ag and DyCu4Ag are reported. In contrast to previous studies which indicate TbCu4Ag to be a simple antiferromagnet and DyCu4Ag to be a ferromagnet, our study indicates a more complicated behaviour for these materials. We observe three magnetic transitions for TbCu4Ag, viz. at TC = 20 K, T1 = 11 K and T2 = 2.5 K. At temperatures T ≤ 10 K the magnetic isotherms show metamagnetic behaviour, while for T1 ≤ T ≤ TC our results suggest canted antiferromagnetism. For DyCu4Ag magnetic transitions are observed at TC = 19 K and in the vicinity of 5 K. Also for this material there is evidence suggesting a canted antiferromagnetic spin structure.",

author = "D. Kaczorowski and {Tchoula Tchokonte}, {M. B.} and Strydom, {A. M.} and P. De",

year = "2000",

month = aug,

day = "1",

doi = "10.1016/S0304-8853(00)00364-4",

language = "English",

volume = "218",

pages = "238--246",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - Magnetic behaviour of TbCu4Ag and DyCu4Ag

AU - Kaczorowski, D.

AU - Tchoula Tchokonte, M. B.

AU - Strydom, A. M.

AU - De, P.

PY - 2000/8/1

Y1 - 2000/8/1

N2 - The temperature dependences of DC and AC magnetisation, electrical resistivity and magnetoresistivity of TbCu4Ag and DyCu4Ag are reported. In contrast to previous studies which indicate TbCu4Ag to be a simple antiferromagnet and DyCu4Ag to be a ferromagnet, our study indicates a more complicated behaviour for these materials. We observe three magnetic transitions for TbCu4Ag, viz. at TC = 20 K, T1 = 11 K and T2 = 2.5 K. At temperatures T ≤ 10 K the magnetic isotherms show metamagnetic behaviour, while for T1 ≤ T ≤ TC our results suggest canted antiferromagnetism. For DyCu4Ag magnetic transitions are observed at TC = 19 K and in the vicinity of 5 K. Also for this material there is evidence suggesting a canted antiferromagnetic spin structure.

AB - The temperature dependences of DC and AC magnetisation, electrical resistivity and magnetoresistivity of TbCu4Ag and DyCu4Ag are reported. In contrast to previous studies which indicate TbCu4Ag to be a simple antiferromagnet and DyCu4Ag to be a ferromagnet, our study indicates a more complicated behaviour for these materials. We observe three magnetic transitions for TbCu4Ag, viz. at TC = 20 K, T1 = 11 K and T2 = 2.5 K. At temperatures T ≤ 10 K the magnetic isotherms show metamagnetic behaviour, while for T1 ≤ T ≤ TC our results suggest canted antiferromagnetism. For DyCu4Ag magnetic transitions are observed at TC = 19 K and in the vicinity of 5 K. Also for this material there is evidence suggesting a canted antiferromagnetic spin structure.

UR - http://www.scopus.com/inward/record.url?scp=0343826845&partnerID=8YFLogxK

U2 - 10.1016/S0304-8853(00)00364-4

DO - 10.1016/S0304-8853(00)00364-4

M3 - Article

AN - SCOPUS:0343826845

SN - 0304-8853

VL - 218

SP - 238

EP - 246

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2

ER -

Magnetic behaviour of TbCu₄Ag and DyCu₄Ag

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this