Magnetic properties of ytterbium gallium garnet between 44 mK and 4K

Filippi, Jean Baptiste; Lasjaunias, J.C.; Hébral, B.; Rossat‐Mignod, J.; Tchéou, F.

doi:10.1088/0022-3719/13/7/012

Cited by 30 publications

(32 citation statements)

References 6 publications

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“…The value for the Yb 3+ moment is not far from the mean value expected both from the average g-tensor (3.4) and from the saturated magnetisation measured at 0.09 K in Ref. [14] (1.7 µ B ). In the fits of the spectra up to 0.2 K, we used an intrinsic half-width: Γ 0 =1.35 mm/s and we assumed the fluctuating hyperfine field has a size which remains constant at the value 140 T derived at 0.036 K. This assumption should hold as long as the correlations are well developed, but it cannot be ascertained that it is completely correct up to 0.2 K. The thermal variation of (1/τ ) hf is shown on Fig.3.…”

Section: B Quantitative Analysiscontrasting

confidence: 43%

Low-temperature spin fluctuations in geometrically frustrated Yb₃Ga₅O₁₂

Hodges¹,

Bonville²,

Rams³

et al. 2003

J. Phys.: Condens. Matter

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In the garnet structure compound Yb3Ga5O12, the Yb 3+ ions (ground state effective spin S ′ = 1/2) are situated on two interpenetrating corner sharing triangular sublattices such that frustrated magnetic interactions are possible. Previous specific heat measurements have evidenced the development of short range magnetic correlations below ∼ 0.5K and a λ-transition at 0.054K (Filippi et al. J. Phys. C: Solid State Physics 13 (1980) 1277). From 170 Yb Mössbauer spectroscopy measurements down to 36 mK, we find there is no static magnetic order at temperatures below that of the λ-transition. Below ∼ 0.3 K, the fluctuation frequency of the short range correlated Yb 3+ moments progressively slows down and as T → 0, it tends to a quasi-saturated value of 3 × 10 9 s −1 . We also examined the Yb 3+ paramagnetic relaxation rates up to 300 K using 172 Yb perturbed angular correlation measurements: they evidence phonon driven processes.

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Section: B Quantitative Analysiscontrasting

confidence: 43%

Low-temperature spin fluctuations in geometrically frustrated Yb₃Ga₅O₁₂

Hodges¹,

Bonville²,

Rams³

et al. 2003

J. Phys.: Condens. Matter

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“…This is much lower than the expected saturation value of 4 µB, but corresponds well to previous measurements on Yb3Ga5O12. [45]…”

Section: Li3yb3te2o12mentioning

confidence: 99%

Magnetic properties of lithium-containing rare earth garnets Li₃RE₃Te₂O₁₂ (RE = Y, Pr, Nd, Sm-Lu)

Cevallos

Guo

Cava

2018

Mater. Res. Express

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The synthesis, structural description, temperature dependent magnetic susceptibilities and field dependent magnetizations of a series of rare earth garnets of the form Li3RE3Te2O12 (RE = Y, La, Pr, Nd, Sm-Lu) are reported. The structure of Li3Dy3Te2O12 is refined from powder X-ray diffraction data. The field dependent magnetizations saturate for some of the members by 9 Tesla at 2 K. Of particular interest for further study in this family is the behavior of the Pr, Tb, Dy and Yb garnets.

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“…Inspecting Refs. [6,8,10,12,[18][19][20], the fraction of the total entropy frozen at T is roughly 60% for Er 2 Ti 2 O 7 and Dy 3 Ga 5 O 12 , 40% for Gd 2 Sn 2 O 7 , and 35% for Gd 2 Ti 2 O 7 , whereas it is only ' 20% for Yb 2 Ti 2 O 7 and Yb 3 Ga 5 O 12 . Therefore we estimate that a long-range magnetic order is present only when at least 1=4 ÿ 1=3 of the magnetic entropy is released at T .…”

mentioning

confidence: 99%

Absence of Magnetic Order inYb3Ga5O12: Relation between Phase Transition and Ent

Réotier

Yaouanc

Gubbens³

et al. 2003

Phys. Rev. Lett.

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From muon spin relaxation spectroscopy experiments, we show that the sharp peak (lambda-type anomaly) detected by specific heat measurements at 54 mK for the ytterbium gallium garnet compound, Yb3Ga5O12, does not correspond to the onset of a magnetic phase transition, but to a pronounced building up of dynamical magnetic pair correlations. Beside the lambda anomaly, a broad hump is observed at higher temperature in the specific heat of this garnet and other geometrically frustrated compounds. Comparing with other frustrated magnetic systems we infer that a ground state with long-range order is reached only when at least 1/4-1/3 of the magnetic entropy is released at the lambda transition.

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Magnetic properties of ytterbium gallium garnet between 44 mK and 4K

Cited by 30 publications

References 6 publications

Low-temperature spin fluctuations in geometrically frustrated Yb₃Ga₅O₁₂

Low-temperature spin fluctuations in geometrically frustrated Yb₃Ga₅O₁₂

Magnetic properties of lithium-containing rare earth garnets Li₃RE₃Te₂O₁₂ (RE = Y, Pr, Nd, Sm-Lu)

Absence of Magnetic Order inYb3Ga5O12: Relation between Phase Transition and Ent

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Magnetic properties of ytterbium gallium garnet between 44 mK and 4K

Cited by 30 publications

References 6 publications

Low-temperature spin fluctuations in geometrically frustrated Yb3Ga5O12

Low-temperature spin fluctuations in geometrically frustrated Yb3Ga5O12

Magnetic properties of lithium-containing rare earth garnets Li3RE3Te2O12 (RE = Y, Pr, Nd, Sm-Lu)

Absence of Magnetic Order inYb3Ga5O12: Relation between Phase Transition and Ent

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Low-temperature spin fluctuations in geometrically frustrated Yb₃Ga₅O₁₂

Low-temperature spin fluctuations in geometrically frustrated Yb₃Ga₅O₁₂

Magnetic properties of lithium-containing rare earth garnets Li₃RE₃Te₂O₁₂ (RE = Y, Pr, Nd, Sm-Lu)