Spin-glass behavior in YCo10-xNixSi2 with high Ni content

H. Tang, G. W. Qiao, J. P. Liu, David J Sellmyer, F. R. De Boer, K. H.J. Buschow

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The magnetic properties and the structure of YCo10-xNixSi2 alloys with high Ni content have been investigated by means of measurements of X-ray diffraction, dc magnetization and ac-susceptibility. The samples are basically of single phase (with x = 6, 7, 8, 8.5, 9, 10) and adopt the ThMn12 type structure. With x≤7.0, the samples show ferromagnetic behavior below the Curie temperatures. For compounds YCo2Ni8Si2 and YCo1.5Ni8.5Si2, the ac-susceptibility and dc zero-field cooling (ZFC) M(T) curve show a cusp with decreasing temperature, and the dc ZFC and field cooling (FC) M(T) curves in lower fields exhibit thermal irreversibility at low temperatures. The magnetization curves at temperatures below the cusp temperature on the ZFC branches do not saturate in the field range of H≤55 kOe. Furthermore, the hysteresis loops at temperatures below the cusp temperature exhibit no coercivity after ZFC. All these features suggest a spin-glass ordering of the compounds YCo10-xNixSi2 with x equal to 8 and 8.5. The spin-glass behavior can be understood in terms of a competition between ferromagnetic interactions involving close Co-Co neighbors and antiferromagnetic interactions involving more remote Co-Co neighbors.

Original languageEnglish (US)
Pages (from-to)565-569
Number of pages5
JournalSolid State Communications
Volume117
Issue number9
DOIs
StatePublished - Feb 13 2001

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Spin glass
spin glass
cooling
cusps
Cooling
curves
Temperature
temperature
Magnetization
magnetic permeability
magnetization
coercivity
Curie temperature
Hysteresis loops
Coercive force
hysteresis
interactions
Magnetic properties
magnetic properties
X ray diffraction

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Tang, H., Qiao, G. W., Liu, J. P., Sellmyer, D. J., De Boer, F. R., & Buschow, K. H. J. (2001). Spin-glass behavior in YCo10-xNixSi2 with high Ni content. Solid State Communications, 117(9), 565-569. https://doi.org/10.1016/S0038-1098(00)00516-0

Spin-glass behavior in YCo10-xNixSi2 with high Ni content. / Tang, H.; Qiao, G. W.; Liu, J. P.; Sellmyer, David J; De Boer, F. R.; Buschow, K. H.J.

In: Solid State Communications, Vol. 117, No. 9, 13.02.2001, p. 565-569.

Research output: Contribution to journalArticle

Tang, H, Qiao, GW, Liu, JP, Sellmyer, DJ, De Boer, FR & Buschow, KHJ 2001, 'Spin-glass behavior in YCo10-xNixSi2 with high Ni content', Solid State Communications, vol. 117, no. 9, pp. 565-569. https://doi.org/10.1016/S0038-1098(00)00516-0
Tang, H. ; Qiao, G. W. ; Liu, J. P. ; Sellmyer, David J ; De Boer, F. R. ; Buschow, K. H.J. / Spin-glass behavior in YCo10-xNixSi2 with high Ni content. In: Solid State Communications. 2001 ; Vol. 117, No. 9. pp. 565-569.
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