Magnetic property of layered compound NbFeTe2

Jian H. Zhang; Feng Chen; Jing Li; Charles J. O'Connor

doi:10.1063/1.364533

Magnetic property of layered compound NbFeTe₂

Jian H. Zhang, Feng Chen, Jing Li, Charles J. O'Connor

Rutgers University

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

14 Citations (Scopus)

Abstract

NbFeTe₂ is a layered cluster compound in which intra Fe-Fe bond distance is 2.488 Å. The magnetic susceptibilities between 100 and 300 K are fit to Curie-Weiss law with C = 1.29 emu K/ mol, and θ=+69.2 K. The effective magnetic moment of 3.67 μ_B per Fe at 300 K corresponding to three unpaired electrons may suggest the formation of Fe-Fe single bond. Mössbauer spectrum at 77 K shows a paramagnetic doublet with δ=0.36 mm/s and ΔE=0.62 mm/s. The X_ac measurement reveals the occurrence of a spin glass transition at T_f=44.0 K. The irreversibility of magnetic properties below T_f has been studied with the measurements of the dc susceptibility, remanent magnetization, and hysteresis loop for both zero field cooled and field cooled samples. The competition between antiferromagnetic and ferromagnetic interactions probably cause the spin glass behavior.

Original language	English
Pages (from-to)	5283-5285
Number of pages	3
Journal	Journal of Applied Physics
Volume	81
Issue number	8 PART 2B
DOIs	https://doi.org/10.1063/1.364533
Publication status	Published - Apr 15 1997

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Magnetic property of layered compound NbFeTe2",

abstract = "NbFeTe2 is a layered cluster compound in which intra Fe-Fe bond distance is 2.488 {\AA}. The magnetic susceptibilities between 100 and 300 K are fit to Curie-Weiss law with C = 1.29 emu K/ mol, and θ=+69.2 K. The effective magnetic moment of 3.67 μB per Fe at 300 K corresponding to three unpaired electrons may suggest the formation of Fe-Fe single bond. M{\"o}ssbauer spectrum at 77 K shows a paramagnetic doublet with δ=0.36 mm/s and ΔE=0.62 mm/s. The Xac measurement reveals the occurrence of a spin glass transition at Tf=44.0 K. The irreversibility of magnetic properties below Tf has been studied with the measurements of the dc susceptibility, remanent magnetization, and hysteresis loop for both zero field cooled and field cooled samples. The competition between antiferromagnetic and ferromagnetic interactions probably cause the spin glass behavior.",

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AU - Zhang, Jian H.

AU - Chen, Feng

AU - Li, Jing

AU - O'Connor, Charles J.

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N2 - NbFeTe2 is a layered cluster compound in which intra Fe-Fe bond distance is 2.488 Å. The magnetic susceptibilities between 100 and 300 K are fit to Curie-Weiss law with C = 1.29 emu K/ mol, and θ=+69.2 K. The effective magnetic moment of 3.67 μB per Fe at 300 K corresponding to three unpaired electrons may suggest the formation of Fe-Fe single bond. Mössbauer spectrum at 77 K shows a paramagnetic doublet with δ=0.36 mm/s and ΔE=0.62 mm/s. The Xac measurement reveals the occurrence of a spin glass transition at Tf=44.0 K. The irreversibility of magnetic properties below Tf has been studied with the measurements of the dc susceptibility, remanent magnetization, and hysteresis loop for both zero field cooled and field cooled samples. The competition between antiferromagnetic and ferromagnetic interactions probably cause the spin glass behavior.

AB - NbFeTe2 is a layered cluster compound in which intra Fe-Fe bond distance is 2.488 Å. The magnetic susceptibilities between 100 and 300 K are fit to Curie-Weiss law with C = 1.29 emu K/ mol, and θ=+69.2 K. The effective magnetic moment of 3.67 μB per Fe at 300 K corresponding to three unpaired electrons may suggest the formation of Fe-Fe single bond. Mössbauer spectrum at 77 K shows a paramagnetic doublet with δ=0.36 mm/s and ΔE=0.62 mm/s. The Xac measurement reveals the occurrence of a spin glass transition at Tf=44.0 K. The irreversibility of magnetic properties below Tf has been studied with the measurements of the dc susceptibility, remanent magnetization, and hysteresis loop for both zero field cooled and field cooled samples. The competition between antiferromagnetic and ferromagnetic interactions probably cause the spin glass behavior.

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