Crystalline fields, exchange interactions and spin reorientations in TmxHo1-xFe2 systems, studied by a Yb170 Mössbauer probe

R. Yanovsky; E. R. Bauminger; D. Levron; I. Nowik; S. Ofer

doi:10.1016/0038-1098(75)90984-9

Crystalline fields, exchange interactions and spin reorientations in Tm_xHo_1-xFe₂ systems, studied by a Yb¹⁷⁰ Mössbauer probe

R. Yanovsky^*
, E. R. Bauminger
, D. Levron
, I. Nowik
, S. Ofer

^*Corresponding author for this work

Racah Institute of Physics

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

4 Scopus citations

Abstract

Mössbauer studies of the 84.3 keV gamma ray of Yb¹⁷⁰ emitted from Yb in Tm_xHo_1-xFe₂ at various temperatures were performed. These yield the crystalline field parameters (A₄〈r⁴〉 = 36 ± 5 K, A₆〈r⁶〉 = -3 ± 2K, the exchange field (μ_BH_exch = 116 ± 4 K) and the Yb³⁺ free ion hyperfine constants (H_4f = 4100 ± 150 kOe, eqQ = 2400 ± 250 MHz and H (conduction electrons) = 350±100 kOe). Spin relaxation phenomena observed in TmFe₂ at low temperatures give a value of ∼ 0.03 for |ρ{variant}(E_F)J_sf|. Spectra observed in Tm_0.2Ho_0.8Fe₂ in the spin reorientation transition region indicate that the transition is of second order.

Original language	English
Pages (from-to)	1511-1514
Number of pages	4
Journal	Solid State Communications
Volume	17
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(75)90984-9
State	Published - 15 Dec 1975

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title = "Crystalline fields, exchange interactions and spin reorientations in TmxHo1-xFe2 systems, studied by a Yb170 M{\"o}ssbauer probe",

abstract = "M{\"o}ssbauer studies of the 84.3 keV gamma ray of Yb170 emitted from Yb in TmxHo1-xFe2 at various temperatures were performed. These yield the crystalline field parameters (A4〈r4〉 = 36 ± 5 K, A6〈r6〉 = -3 ± 2K, the exchange field (μBHexch = 116 ± 4 K) and the Yb3+ free ion hyperfine constants (H4f = 4100 ± 150 kOe, eqQ = 2400 ± 250 MHz and H (conduction electrons) = 350±100 kOe). Spin relaxation phenomena observed in TmFe2 at low temperatures give a value of ∼ 0.03 for |ρ\{variant\}(EF)Jsf|. Spectra observed in Tm0.2Ho0.8Fe2 in the spin reorientation transition region indicate that the transition is of second order.",

author = "R. Yanovsky and Bauminger, \{E. R.\} and D. Levron and I. Nowik and S. Ofer",

year = "1975",

month = dec,

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doi = "10.1016/0038-1098(75)90984-9",

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T1 - Crystalline fields, exchange interactions and spin reorientations in TmxHo1-xFe2 systems, studied by a Yb170 Mössbauer probe

AU - Yanovsky, R.

AU - Bauminger, E. R.

AU - Levron, D.

AU - Nowik, I.

AU - Ofer, S.

PY - 1975/12/15

Y1 - 1975/12/15

N2 - Mössbauer studies of the 84.3 keV gamma ray of Yb170 emitted from Yb in TmxHo1-xFe2 at various temperatures were performed. These yield the crystalline field parameters (A4〈r4〉 = 36 ± 5 K, A6〈r6〉 = -3 ± 2K, the exchange field (μBHexch = 116 ± 4 K) and the Yb3+ free ion hyperfine constants (H4f = 4100 ± 150 kOe, eqQ = 2400 ± 250 MHz and H (conduction electrons) = 350±100 kOe). Spin relaxation phenomena observed in TmFe2 at low temperatures give a value of ∼ 0.03 for |ρ{variant}(EF)Jsf|. Spectra observed in Tm0.2Ho0.8Fe2 in the spin reorientation transition region indicate that the transition is of second order.

AB - Mössbauer studies of the 84.3 keV gamma ray of Yb170 emitted from Yb in TmxHo1-xFe2 at various temperatures were performed. These yield the crystalline field parameters (A4〈r4〉 = 36 ± 5 K, A6〈r6〉 = -3 ± 2K, the exchange field (μBHexch = 116 ± 4 K) and the Yb3+ free ion hyperfine constants (H4f = 4100 ± 150 kOe, eqQ = 2400 ± 250 MHz and H (conduction electrons) = 350±100 kOe). Spin relaxation phenomena observed in TmFe2 at low temperatures give a value of ∼ 0.03 for |ρ{variant}(EF)Jsf|. Spectra observed in Tm0.2Ho0.8Fe2 in the spin reorientation transition region indicate that the transition is of second order.

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SN - 0038-1098

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JO - Solid State Communications

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Crystalline fields, exchange interactions and spin reorientations in Tm_xHo_1-xFe₂ systems, studied by a Yb¹⁷⁰ Mössbauer probe

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