2016
DOI: 10.1080/14786435.2016.1218081
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Divalent, trivalent, and heavy fermion states in Eu compounds

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Cited by 44 publications
(41 citation statements)
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“…[2][3][4] Comparatively less work has been done to explore the effects of pressure or doping in Eu-based intermetallics, even though Eu presents similar opportunities to tune the ground state through valence fluctuations between magnetic Eu 2+ and nonmagnetic Eu 3+ ions. 5 In this study, we explored the effects of isovalent doping in the Eu(Ga 1−x Al x ) 4 series, motivated by the wide range of apparently conflicting results observed when tuning the properties of the end compounds EuGa 4 and EuAl 4 .…”
Section: Introductionmentioning
confidence: 99%
“…[2][3][4] Comparatively less work has been done to explore the effects of pressure or doping in Eu-based intermetallics, even though Eu presents similar opportunities to tune the ground state through valence fluctuations between magnetic Eu 2+ and nonmagnetic Eu 3+ ions. 5 In this study, we explored the effects of isovalent doping in the Eu(Ga 1−x Al x ) 4 series, motivated by the wide range of apparently conflicting results observed when tuning the properties of the end compounds EuGa 4 and EuAl 4 .…”
Section: Introductionmentioning
confidence: 99%
“…However, the energy difference between Eu 2+ and the non-magnetic Eu 3+ (4f 6 , J=0) valence state is not so large 5 and is reachable by applying external pressure or chemical substitution. Indeed, amongst the most extensively studied Eu-compounds series with the ThCr 2 Si 2 -type crystal structure, pressure or chemical substitution controlled first-order valence transitions and valence fluctuations are frequently reported 6 . In the Eu(Pd 1−x Au x ) 2 Si 2 system, EuAu 2 Si 2 possesses a Eu 2+ valence state and exhibits antiferromagnetic ordering below the Néel temperature (T N ) of ∼ 15.5 K 7 .…”
Section: Introductionmentioning
confidence: 99%
“…Here, S , L, and J are the total spin, total orbital, and total angular momenta, respectively. It is interesting that the number of intermetallic compounds with Eu 3+ found thus far at ambient pressure is much smaller than that with Eu 2+ or the intermediate valence state, 22) even though most rare-earth ions are usually trivalent in their compounds. The valence state of the Eu ion can be tuned easily by external parameters, such as temperature and pressure, because the energy difference between the two valence states is relatively small.…”
Section: Introductionmentioning
confidence: 99%