1997
DOI: 10.1103/physrevb.56.8381
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Effects of Pr ion on the superconducting properties in Y1xPrxBa

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Cited by 14 publications
(9 citation statements)
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“…The situation with the Pr valence in Pr-123 is not completely clear up to now, see, e.g., Ref. [10], although strong evidence was obtained from inelastic neutron scattering [2] and spectroscopic data [3] for the predominance of +3 valence of Pr and Pr 4f -O 2p π hybridization. This hybridization should not only lead to the suppression of superconductivity but also to a considerable enhancement of the exchange interaction between the Pr 3+ magnetic moments resulting in (i) a stabilization of the low-temperature non-zero value of these moments (which would vanish for dominating crystal field interactions) and (ii) an increase of T N .…”
Section: Introductionmentioning
confidence: 96%
“…The situation with the Pr valence in Pr-123 is not completely clear up to now, see, e.g., Ref. [10], although strong evidence was obtained from inelastic neutron scattering [2] and spectroscopic data [3] for the predominance of +3 valence of Pr and Pr 4f -O 2p π hybridization. This hybridization should not only lead to the suppression of superconductivity but also to a considerable enhancement of the exchange interaction between the Pr 3+ magnetic moments resulting in (i) a stabilization of the low-temperature non-zero value of these moments (which would vanish for dominating crystal field interactions) and (ii) an increase of T N .…”
Section: Introductionmentioning
confidence: 96%
“…The most popular is the Hao-Clem model, 10 which has widely been used to derive different parameters of HTSC's from magnetization data. [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] However, as has been pointed out recently, this model is far from being accurate. 28,29 Both the Hao-Clem model and the numerical calculations in Ref.…”
Section: Introductionmentioning
confidence: 99%
“…This type of κ(T ) behavior resulted in practically all published analyses, in which the Hao-Clem model was applied to experimental magnetization data. [24][25][26][27][28][29][30][31][32][33][34][35][36] The standard explanation is that because of thermal fluctuations of vortices, which are not accounted for by the model, this approach is inapplicable at higher temperatures. Considering the data presented in Fig.…”
Section: Hao-clem Model and Thermal Fluctuations Of Vorticesmentioning
confidence: 99%