The irreversibility line and Curie-Weiss temperature of the superconductor LaCaBaCu3-X(BO3)Xwith x= 0.2 and 0.3

L. De Los Santos Valladares; A. Bustamante Dominguez; R. Bellido Quispe; W. Flores Santibañez; J. Albino Aguiar; C. H.W. Barnes; Y. Majima

doi:10.1016/j.phpro.2012.06.244

The irreversibility line and Curie-Weiss temperature of the superconductor LaCaBaCu_3-X(BO₃)_Xwith x= 0.2 and 0.3

L. De Los Santos Valladares, A. Bustamante Dominguez, R. Bellido Quispe, W. Flores Santibañez, J. Albino Aguiar, C. H.W. Barnes, Y. Majima

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

LaCaBaCu₃O₇ is a high critical temperature superconductor (HTS) below the T_c = 80 K and its structure is similar to that of YBCO. In this work we study the effect in the irreversibility line and the Curie-Weiss temperature of this superconductor after borate (BO₃)^3- doping (LaCaBaCu_3-x(BO₃)_xO_7-δx=0.2 and 0.3). Interestingly, borate doping enhances the irreversibility line and this effect is probably caused from alteration the arrangement of the oxygen atoms in the crystalline structure. Moreover, the Curie-Weiss temperature (□_p) in the normal state increases with doping concentration. Calculated □_p for pure LaCaBaCu₃O₇ is around -98K, this value increases to -75 and 49 K for x=0.2 and 0.3 respectively and indicating transition from antiferromagnetic to ferromagnetic coupling between ions in the structure. This study provides additional data for the magnetic characteristics of doped like-123 crystalline structures with oxyanions.

Original language	English
Pages (from-to)	354-359
Number of pages	6
Journal	Physics Procedia
Volume	36
DOIs	https://doi.org/10.1016/j.phpro.2012.06.244
State	Published - 2012
Externally published	Yes
Event	Superconductivity Centennial Conference, SCC 2011 - The Hague, Netherlands Duration: 18 Sep 2011 → 23 Sep 2011

Bibliographical note

Funding Information:
This work was supported by the European Union program ALBAN (Contract No. E06D101257PE) and the Cambridge overseas Thrust. The work in Japan was supported by the Japan Society for the Promotion of Science (JSPS contract Nº PE10027); Grants-in-Aid for Scientific Research on Innovative Areas (No. 20108011, ˭-Space) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT); a Collaborative Research Project from the Materials and Structures Laboratory (Tokyo Institute of Technology) and the World Class University Program from the Sunchon National University, Korea.

Keywords

Curie-weiss temperature
High temperature superconductor
Irreversibility line in superconductors
LaCaBaCuO

Access to Document

10.1016/j.phpro.2012.06.244

Cite this

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title = "The irreversibility line and Curie-Weiss temperature of the superconductor LaCaBaCu3-X(BO3)Xwith x= 0.2 and 0.3",

abstract = "LaCaBaCu3O7 is a high critical temperature superconductor (HTS) below the Tc = 80 K and its structure is similar to that of YBCO. In this work we study the effect in the irreversibility line and the Curie-Weiss temperature of this superconductor after borate (BO3)3- doping (LaCaBaCu3-x(BO3)xO7-δx=0.2 and 0.3). Interestingly, borate doping enhances the irreversibility line and this effect is probably caused from alteration the arrangement of the oxygen atoms in the crystalline structure. Moreover, the Curie-Weiss temperature (□p) in the normal state increases with doping concentration. Calculated □p for pure LaCaBaCu3O7 is around -98K, this value increases to -75 and 49 K for x=0.2 and 0.3 respectively and indicating transition from antiferromagnetic to ferromagnetic coupling between ions in the structure. This study provides additional data for the magnetic characteristics of doped like-123 crystalline structures with oxyanions.",

keywords = "Curie-weiss temperature, High temperature superconductor, Irreversibility line in superconductors, LaCaBaCuO",

author = "{De Los Santos Valladares}, L. and {Bustamante Dominguez}, A. and {Bellido Quispe}, R. and {Flores Santiba{\~n}ez}, W. and {Albino Aguiar}, J. and Barnes, {C. H.W.} and Y. Majima",

note = "Publisher Copyright: {\textcopyright} 2011 Published by Elsevier B.V. Selection and/or peer-review under responsibility of the Guest Editors. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; null ; Conference date: 18-09-2011 Through 23-09-2011",

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T1 - The irreversibility line and Curie-Weiss temperature of the superconductor LaCaBaCu3-X(BO3)Xwith x= 0.2 and 0.3

AU - De Los Santos Valladares, L.

AU - Bustamante Dominguez, A.

AU - Bellido Quispe, R.

AU - Flores Santibañez, W.

AU - Albino Aguiar, J.

AU - Barnes, C. H.W.

AU - Majima, Y.

PY - 2012

Y1 - 2012

N2 - LaCaBaCu3O7 is a high critical temperature superconductor (HTS) below the Tc = 80 K and its structure is similar to that of YBCO. In this work we study the effect in the irreversibility line and the Curie-Weiss temperature of this superconductor after borate (BO3)3- doping (LaCaBaCu3-x(BO3)xO7-δx=0.2 and 0.3). Interestingly, borate doping enhances the irreversibility line and this effect is probably caused from alteration the arrangement of the oxygen atoms in the crystalline structure. Moreover, the Curie-Weiss temperature (□p) in the normal state increases with doping concentration. Calculated □p for pure LaCaBaCu3O7 is around -98K, this value increases to -75 and 49 K for x=0.2 and 0.3 respectively and indicating transition from antiferromagnetic to ferromagnetic coupling between ions in the structure. This study provides additional data for the magnetic characteristics of doped like-123 crystalline structures with oxyanions.

AB - LaCaBaCu3O7 is a high critical temperature superconductor (HTS) below the Tc = 80 K and its structure is similar to that of YBCO. In this work we study the effect in the irreversibility line and the Curie-Weiss temperature of this superconductor after borate (BO3)3- doping (LaCaBaCu3-x(BO3)xO7-δx=0.2 and 0.3). Interestingly, borate doping enhances the irreversibility line and this effect is probably caused from alteration the arrangement of the oxygen atoms in the crystalline structure. Moreover, the Curie-Weiss temperature (□p) in the normal state increases with doping concentration. Calculated □p for pure LaCaBaCu3O7 is around -98K, this value increases to -75 and 49 K for x=0.2 and 0.3 respectively and indicating transition from antiferromagnetic to ferromagnetic coupling between ions in the structure. This study provides additional data for the magnetic characteristics of doped like-123 crystalline structures with oxyanions.

KW - Curie-weiss temperature

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KW - Irreversibility line in superconductors

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