Phase formation and superconductivity in [Y1 x Cax] SrBaCu 2.80 (BO3) 0.20Oy with 0.10 ≤ x ≤ 0.50

A. G. Bustamante Domínguez; V. H. Barinotto C.; J. Flores Santibañez; F. Garcia

doi:10.1016/s0921-4534(00)00625-0

Phase formation and superconductivity in [Y_{1 x} Ca_x] SrBaCu _2.80 (BO₃) _0.20O_y with 0.10 ≤ x ≤ 0.50

A. G. Bustamante Domínguez, V. H. Barinotto C., J. Flores Santibañez, F. Garcia

Research output: Contribution to journal › Article › peer-review

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Abstract

We report the phase formation and superconductivity in [Y_1-xCa_x]SrBaCu_2.80(BO₃) _0.20O_y with 0.10≤ x ≤ 0.50 prepared at normal pressure and temperature. The X-ray diffraction pattern shows that all samples have a tetragonal P4/mmm structure, indicating that the BO₃ groups were incorporated in the structure. The ZFC magnetization versus temperature measurements under an applied field of 10 Oe using a SQUID magnetometer, show that the materials are superconductors, with T_c ≈ 77K, almost independently of the Ca content. The observed differences are related to the volume fraction of Meissner effect. In the temperature range 100-300K all samples show a typical Curie - Weiss behavior, under an applied high field of 20 KOe.

Original language	English
Pages (from-to)	635-636
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	341-348
Issue number	PART 1
DOIs	https://doi.org/10.1016/s0921-4534(00)00625-0
State	Published - 2000
Externally published	Yes

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Funding Information:
* This work was supported by the Superior Council of Research (SCR) of the UNMSM under contract # 91301031

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title = "Phase formation and superconductivity in [Y1 x Cax] SrBaCu 2.80 (BO3) 0.20Oy with 0.10 ≤ x ≤ 0.50",

abstract = "We report the phase formation and superconductivity in [Y1-xCax]SrBaCu2.80(BO3) 0.20Oy with 0.10≤ x ≤ 0.50 prepared at normal pressure and temperature. The X-ray diffraction pattern shows that all samples have a tetragonal P4/mmm structure, indicating that the BO3 groups were incorporated in the structure. The ZFC magnetization versus temperature measurements under an applied field of 10 Oe using a SQUID magnetometer, show that the materials are superconductors, with Tc ≈ 77K, almost independently of the Ca content. The observed differences are related to the volume fraction of Meissner effect. In the temperature range 100-300K all samples show a typical Curie - Weiss behavior, under an applied high field of 20 KOe.",

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T1 - Phase formation and superconductivity in [Y1 x Cax] SrBaCu 2.80 (BO3) 0.20Oy with 0.10 ≤ x ≤ 0.50

AU - Bustamante Domínguez, A. G.

AU - Barinotto C., V. H.

AU - Flores Santibañez, J.

AU - Garcia, F.

PY - 2000

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N2 - We report the phase formation and superconductivity in [Y1-xCax]SrBaCu2.80(BO3) 0.20Oy with 0.10≤ x ≤ 0.50 prepared at normal pressure and temperature. The X-ray diffraction pattern shows that all samples have a tetragonal P4/mmm structure, indicating that the BO3 groups were incorporated in the structure. The ZFC magnetization versus temperature measurements under an applied field of 10 Oe using a SQUID magnetometer, show that the materials are superconductors, with Tc ≈ 77K, almost independently of the Ca content. The observed differences are related to the volume fraction of Meissner effect. In the temperature range 100-300K all samples show a typical Curie - Weiss behavior, under an applied high field of 20 KOe.

AB - We report the phase formation and superconductivity in [Y1-xCax]SrBaCu2.80(BO3) 0.20Oy with 0.10≤ x ≤ 0.50 prepared at normal pressure and temperature. The X-ray diffraction pattern shows that all samples have a tetragonal P4/mmm structure, indicating that the BO3 groups were incorporated in the structure. The ZFC magnetization versus temperature measurements under an applied field of 10 Oe using a SQUID magnetometer, show that the materials are superconductors, with Tc ≈ 77K, almost independently of the Ca content. The observed differences are related to the volume fraction of Meissner effect. In the temperature range 100-300K all samples show a typical Curie - Weiss behavior, under an applied high field of 20 KOe.

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Phase formation and superconductivity in [Y_{1 x} Ca_x] SrBaCu _2.80 (BO₃) _0.20O_y with 0.10 ≤ x ≤ 0.50

Abstract

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