Field dependence of magnetic transitions for magnetic superconductors RNi 2 B 2 C (R=Dy, Ho)

H. C. Ku, M. S. Lin, Yung-Yuan Hsu, J. H. Shieh, Y. B. You

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Abstract

High field (up to 5 T) magnetization measurements were performed on both bulk and field-aligned powder samples of RNi 2 B 2 C (R=Dy, Ho) magnetic superconductors. For T c =3.8 K, a DyNi 2 B 2 C superconductor with antiferromagnetic Néel temperature T N of 10-11 K, and anomalous field-induced weak-ferromagnetic transitions were observed above the superconducting upper critical field H c2 (2 K) of 1.75 kG. The aligned powders show distinct hysteresis characteristics for both fields applied parallel and perpendicular to the tetragonal basal plane. For T c =7.8 K, HoNi 2 B 2 C has an incommensurate magnetic ordering temperature T m of 6 K and T N of 5.2 K. Anomalous field-induced weak-ferromagnetic transitions were also observed below T N . No hysteresis can be detected for T N <T<T m .

Original languageEnglish
Pages (from-to)5863-5865
Number of pages3
JournalJournal of Applied Physics
Volume79
Issue number8 PART 2B
Publication statusPublished - 1996 Apr 15

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hysteresis
magnetization
temperature

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Field dependence of magnetic transitions for magnetic superconductors RNi 2 B 2 C (R=Dy, Ho) . / Ku, H. C.; Lin, M. S.; Hsu, Yung-Yuan; Shieh, J. H.; You, Y. B.

In: Journal of Applied Physics, Vol. 79, No. 8 PART 2B, 15.04.1996, p. 5863-5865.

Research output: Contribution to journalArticle

Ku, HC, Lin, MS, Hsu, Y-Y, Shieh, JH & You, YB 1996, ' Field dependence of magnetic transitions for magnetic superconductors RNi 2 B 2 C (R=Dy, Ho) ', Journal of Applied Physics, vol. 79, no. 8 PART 2B, pp. 5863-5865.
Ku, H. C. ; Lin, M. S. ; Hsu, Yung-Yuan ; Shieh, J. H. ; You, Y. B. / Field dependence of magnetic transitions for magnetic superconductors RNi 2 B 2 C (R=Dy, Ho) In: Journal of Applied Physics. 1996 ; Vol. 79, No. 8 PART 2B. pp. 5863-5865.
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AU - Shieh, J. H.

AU - You, Y. B.

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AB - High field (up to 5 T) magnetization measurements were performed on both bulk and field-aligned powder samples of RNi 2 B 2 C (R=Dy, Ho) magnetic superconductors. For T c =3.8 K, a DyNi 2 B 2 C superconductor with antiferromagnetic Néel temperature T N of 10-11 K, and anomalous field-induced weak-ferromagnetic transitions were observed above the superconducting upper critical field H c2 (2 K) of 1.75 kG. The aligned powders show distinct hysteresis characteristics for both fields applied parallel and perpendicular to the tetragonal basal plane. For T c =7.8 K, HoNi 2 B 2 C has an incommensurate magnetic ordering temperature T m of 6 K and T N of 5.2 K. Anomalous field-induced weak-ferromagnetic transitions were also observed below T N . No hysteresis can be detected for T N <T<T m .

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