On the magnetic and chemical properties of Europium fluoride

Lee, K.; Muir, H.; Catalano, Edward

doi:10.1016/0022-3697(65)90127-7

Cited by 17 publications

(3 citation statements)

References 12 publications

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“…Accordingly, these phases will create broad EPR lines with a g factor close to 2, well visible in Figures , A, and A due to exchange and dipole interactions between a large number of Eu 2+ ions (for simplicity, we designate these spectral lines in Figures and A as clustered Eu 2+ ions). The mentioned broad lines (line width from 900 up to 3200 G) cannot originate from either electron, hole, or radical trapped in the hosts since they show spectral properties characteristic of magnetic materials (discussed in detail at the end of the section) common for the divalent europium compounds. − All this corroborates supposition that the spectrum in Figure originates namely from the Eu 2+ ions found in the garnet samples where the magnetic dilution of the paramagnetic europium was only possible.…”

Section: Resultssupporting

confidence: 66%

Eu²⁺ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study

et al. 2016

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A set of Eu-doped Y 3 Al 5 O 12 (YAG) phosphors in the powder form was successfully synthesized by multiple-step solid-state reaction under the reducing Ar:5%H 2 atmosphere. Their physical properties were investigated by means of X-ray diffraction, time-resolved luminescence spectroscopy, and electron paramagnetic resonance (EPR). Special attention was given to wellgrounded confirmation of Eu 2+ occurrence in the YAG structure. Xray diffraction confirmed the presence of a major YAG phase in all samples. The influence of Eu concentration, form of doping (EuS, EuF 2 , or Eu 2 O 3 ) and number/form of annealing steps was studied. Corresponding characteristics were measured and evaluated in a broad temperature range (8−800 K). The correlated measurements showed that the single Eu 2+ ions stabilized in YAG in the yttrium position are responsible for the 440 nm emission. The corresponding lowest energy excitation band is situated at 300 nm, and the radiative lifetime of Eu 2+ emission is about 500 ns. A phenomenological model of excited state dynamics was used to explain the experimentally observed features. Possible practical exploitation of the Eu 2+ center in the YAG host is discussed.

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Section: Resultssupporting

confidence: 66%

Eu²⁺ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study

et al. 2016

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“…The answer is EuF 2 forming tie-lines with almost 99% of all stable materials, immediately following the noble gases. This material was known to be stable against oxidation and hydrolysis [28], but this extent of solid-solid inertness is likely unknown to date. EuF 2 is an example among many IA/IIA-VIIA compounds such as RbYbF 3 , RbBr, CsBr, YbClF, CsYbF 3 , RbI, KCl, CsCl, KBr, SrF 2 , KI, CaF 2 , NaCl, LiF, and others, that have a highly ionic character.…”

Section: Resultsmentioning

confidence: 99%

The phase stability network of all inorganic materials

et al. 2020

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Understanding how the arrangement of atoms and their interactions determine material behavior has been the dominant paradigm in materials science. A complementary approach is studying the organizational structure of networks of materials, defined on the basis of interactions between materials themselves. In this work, we present the "phase diagram of all known inorganic materials", an extremely-dense complex network of nearly 2.1×10 4 stable inorganic materials (nodes) connected with 41 × 10 6 tie-lines (edges) defining their two-phase equilibria, as computed via high-throughput density functional theory. We show that the degree distribution of this network follows a lognormal form, with each material connected to on average 18% of the other materials in the network via tielines. Analyzing the structure and topology of this network has potential to uncover new materials knowledge inaccessible from the traditional bottom-up (atoms to materials) approaches. As an example, we derive a data-driven metric for the reactivity of a material as characterized by its connectedness in the network, and quantitatively identify the noblest materials in nature. * These authors contributed equally to this work † Current address: Jump Trading LLC, Chicago, IL 60654Corresponding author: murat.aykol@tri.global (M. Aykol)

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“…The electron energy distribution in the new ion source is due primarily to potential gradients within the source and is estimated to be 0.5 V. Voltages were recorded to ±0.05 V by using a voltage-to-frequency converter and pulse trans former system. The voltage scale was normalized by determining the appearance potential of Ar (40). Checks of the appearance potentials of Ag + (107), H 0 0 + (18), and 0~ (32) who observed I(GaN + )/I(Ga + ) ratios from 0.6 to 2.0 and KGagNgJ/KGa" 1 ") ratios from 0.1 to 0.3 at temperatures from 1000 to 1150°K.…”

Section: Introductionmentioning

confidence: 99%

Investigations at high temperatures: Condensed-phase equilibria and vaporization studies with a mass spectrometer

Bedford¹

1970

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On the magnetic and chemical properties of Europium fluoride

Cited by 17 publications

References 12 publications

Eu²⁺ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study

Eu²⁺ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study

The phase stability network of all inorganic materials

Investigations at high temperatures: Condensed-phase equilibria and vaporization studies with a mass spectrometer

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On the magnetic and chemical properties of Europium fluoride

Cited by 17 publications

References 12 publications

Eu2+ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study

Eu2+ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study

The phase stability network of all inorganic materials

Investigations at high temperatures: Condensed-phase equilibria and vaporization studies with a mass spectrometer

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Product

Resources

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Eu²⁺ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study

Eu²⁺ Stabilization in YAG Structure: Optical and Electron Paramagnetic Resonance Study