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Uma, S.; Sarkar, Tanushree; Sethupathi, K.; Seshasayee, M.; Rangarajan, Govindan; Changkang, Chen; Hu, Yongle; Wanklyn, B.M.; Hodby, J.W.

doi:10.1103/physrevb.53.6829

Cited by 27 publications

(33 citation statements)

References 24 publications

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“…One can see that they depend strongly on oxygen content x but also on ageing in air for the oxygenated sample. Table 2 Results of susceptibility data fitting to modified Curie-Weiss law Such an increase was also observed by other authors [1,2]. It can become much less pronounced in the variation of M(T) measured in fields larger than those applied in the present χ(T) measurements (see for instance M(T) in 2 T from Ref.…”

Section: Resultssupporting

confidence: 70%

“…It can become much less pronounced in the variation of M(T) measured in fields larger than those applied in the present χ(T) measurements (see for instance M(T) in 2 T from Ref. [2,10]). In accordance, our M(H) data show a curvature at low temperature (Fig.…”

Section: Resultsmentioning

confidence: 94%

“…This is why they are considered as good candidates to get a deeper insight on the transport and magnetic properties of these systems. Previous investigations of AF ordered Pr123 compounds have shown that T N can range from 9 to 11 K and from 14 to 20 K for the under-and fully oxygenated systems, respectively [1][2][3]. According to recent studies [4], which showed bulk superconductivity in PrBa 2 Cu 3 O 7 , a proposed explanation of the Pr123 insulating behavior is the partial substitution of Pr in Ba sites.…”

Section: Introductionmentioning

confidence: 95%

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Praseodymium and oxygen role on magnetic properties of PrBa ₂ Cu ₃ O _{6+
x}

Harat

Fillion

Haen

et al. 2004

phys. stat. sol. (c)

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We report on magnetic investigation on PrBa 2 Cu 3 O 6+x compounds (0.4 < x < 1.0) where the Pr 3+ ions exhibit an antiferromagnetic order (AF) at T N ~ 11 K for x ~ 0.5 and 17 K for x ~ 1. For better understanding of the role of the praseodymium and oxygen content on magnetic and transport properties, we measured temperature and field dependence of susceptibility and magnetization of PrBa 2 Cu 3 O 6+x in two oxygenation states x = 0.4 and 0.9. We show that a careful analysis of these data can bring to evidence the existence of several tiny transitions, especially a sharp one around 13 K which may be related to a change of direction of copper moments.

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Section: Resultssupporting

confidence: 70%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 95%

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Praseodymium and oxygen role on magnetic properties of PrBa ₂ Cu ₃ O _{6+
x}

Harat

Fillion

Haen

et al. 2004

phys. stat. sol. (c)

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show abstract

“…This finding may indicate instabilities in their computer program caused by possible artifacts. The authors' conclusions [38] that larger values of the CFPs of Pr-O7 compared to Pr-O6 showed that the CF interaction was stronger in Pr-O7 is even enhanced after standardization. The CFP in the original notation (see Section 3.3) for Pr-O7 (B 0 2 ; B 2 2 Þ ¼ ðÀ500 À 270Þ become after the S2 standardization (À580.7, À171.2).…”

Section: Ho 3+ Ions In Reba 2 Cu 3 O 7àdmentioning

confidence: 89%

“…Structural, magnetic, and crystalline electric-field effects in single crystals of Y 1Àx Pr x Ba 2 Cu 3 Zn z O 7Àd were studied by Uma et al [38]. The authors found that during the fitting procedure even small changes (±1 cm À1 ) in the values of the CFPs for Pr 3+ ions brought about large variations (±5 Â 10 À5 emu/mol) in the directional susceptibilities even though the energy-level pattern was found not to show any detectable changes.…”

Section: Ho 3+ Ions In Reba 2 Cu 3 O 7àdmentioning

confidence: 99%