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HIGH PRESSURE-HIGH TEMPERATURE ELECTRICAL RESISTIVITY STUDIES ON Nd_0.9Ca_0.1Ba₂Cu₃O_7-δ

R. SELVA VENNILA

Department of Physics, Anna University, Chennai-600 025, India

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S. REZA GHORBANI

Department of Physics, Sabzevar Teacher Training University, Sabzevar-397, Iran

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, and

N. VICTOR JAYA

Department of Physics, Anna University, Chennai-600 025, India

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https://doi.org/10.1142/S0217979206035710Cited by:0 (Source: Crossref)

Abstract

High pressure-high temperature electrical resistivity study on composition-controlled Nd_0.9Ca_0.1Ba₂Cu₃O_7-δ high T_c superconductor (HTSC) is carried out by a four-probe technique using Bridgman anvils. A simple heating coil arrangement is used for heating the samples. Electrical resistivity behavior under pressure (up to a maximum of 8 GPa) at various temperatures (up to a maximum of 523 K) were studied and reported in this paper. Simulation of energy dispersive X-ray diffraction confirms substitution of calcium at the Nd site of Nd-123. Variation of the electrical resistivity under pressure is compared with that of the structural changes and the bulk modulus was determined.

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References

M. Murakamiet al., Jpn. J. Appl. Phys. 33, L715 (1994). Web of Science, Google Scholar
T. Miyatkeet al., Nature 341, 419 (1989). Google Scholar
R. D. Shannon, Acta Cryst. A 32, 751 (1976). Web of Science, Google Scholar
M. Yousuf, PhD thesis, Indian Institute of Science, Bangalore (1985) . Google Scholar
S. R. Ghorbani, M. Andersson and Ö. Rapp, Physica C 390, 160 (2003). Web of Science, ADS, Google Scholar
F. Licciet al., Phys. Rev. B 58, 15208 (1998). Web of Science, ADS, Google Scholar
S. R. Ghorbaniet al., Physica C 339, 245 (2000). Web of Science, ADS, Google Scholar
S. Desgreniers and K. Lagarec, J. Appl. Cryst. 27, 432 (1994). Web of Science, Google Scholar
R. T. Downset al., Am. Mineral. 78, 1104 (1993). Web of Science, Google Scholar
N. Victor Jaya, PhD thesis, Anna University, India (1988) . Google Scholar
T. K. Jaya Arun and N. Victor Jaya, Proc. of the Sec. Int. Conf. on High Press. Sci. and Technol., eds. A. K. Bandyopadyay, D. Varandani and K. Lal p. 455. Google Scholar
A. G. Joshi, D. G. Kuberkar and R. G. Kulkerni, Physica C 320, 87 (1999). Web of Science, ADS, Google Scholar
R. Selva Vennilaet al., Mod. Phys. Lett. B 18, 27 (2004). Link, Web of Science, ADS, Google Scholar
R. S. Kumaret al., Rev. Sci. Instrum. 70, 3074 (1999). Web of Science, ADS, Google Scholar