Abstract
Pr-doping Y0.928Pr0.072Ba2Cu3O7−δ superconducting single crystal was studied systemically by the magnetic response measurement below T c . DC magnetization shows a possible existence of micro-phase separation caused by the non-uniform distribution of Pr ions in microstructure during the growth procedure. The magnetic field dependence of critical current density J c and pinning force density F p had been obtained from the magnetization hysteresis loop. Flux pinning mechanisms in different magnetic fields had been discussed using the scaling function as well as the ratio of the pinning force field at H on and H peak. We find that the peak effect is influenced by the micro-phase separation which is caused by the non-uniform distribution of Pr ions in microstructure during the growth procedure. The interface between the different T c superconductivity areas can be the effective pinning center which is useful to the appearance of peak effect. The value of the ratio of the maximum pinning force field to the irreversibility field is discussed. The conclusion is consistent with the model constructed by Wen et al.; we finally draw out the thermomagnetic phase diagram for our samples.
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Park, A.R., Chio, S.M., Dender, D.C., Lynn, J.W., Ling, X.S.: Phys. Rev. Lett. 91, 167003 (2003)
Yeshurun, Y., Bontemps, N., Burlachkov, L., Kapitulnik, A.: Phys. Rev. B 49, 1548 (1994)
Grzegorz, H., Nagi, A.D.S.: Phys. Rev. B 54, 15463 (1996)
Neier-Hirmer, R., Kupfer, H., Scheurer, H.: Phys. Rev. B 31, 183 (1985)
Brandt, E.H.: Phys. Rev. Lett. 50, 1599 (1983)
Takuya, H., Katsukuni, Y.: Phys. C 383, 48 (2002)
Diosa, J.E., Vargas, R.A., Mellander, B.E.: J. Phys: Condens. Matter 9, 4621 (1997)
Kokkaliaris, S., Zhukov, A.A., de Groot, P.A.J., Wolf, T., Gagnon, R., Taillefer, L.: Phys. Rev. B 61, 3655 (2000)
Anne, V.O., Richard, T.S., Gergely, T.Z., Robert, O., Andra, P., Wai, K., Valerii, V.: Phys. Rev. Lett. 84, 2493 (2000)
Mikitik, G.P., Brandt, E.H.: Phys. Rev. B 64, 184514 (2001)
Anders, S., Parthasarathy, R., Jaeger, H.M., Guptasarma, P., Hinks, D.G., Van Veen, R.: Phys. Rev. B 58, 10 (1998)
Miu, L., Cimpoiasu, E., Stein, T., Almasan, C.C.: Phys. C 334, 1 (2000)
Huhtinen, H., Awana, V.P.S., Gupta, A., Kishan, H., Laiho, R., Narlikar, A.V.: Supercond. Sci. Technol. 20, S159 (2007)
Feng, Y., Zhou, L., Wen, J.G., et al.: Phys. C. 289, 216 (1997)
Harada, T., Yoshida, K.: Phys. C 383, 48 (2002)
Bean, C.P.: Phys. Rev. Lett. 9, 309 (1962)
Küpfor, H., Wolf, T., Lessing, C., Zhukov, A.A., Lancon, X., Meier-Hirmer, R., Schauer, W., Wühl, H.: Phys. Rev. B 58, 2886 (1998)
Hiergeist, R., Hergt, R.: Phys. Rev. B 55, 3258 (1997)
Wen, H.H., Zhao, Z.X.: Appl. Phys. Lett. 68, 856 (1996)
Dew-Hughes, D.: Philos. Mag. 30, 293 (1974)
Abulafia, Y., Shaulov, A., Wolfus, Y., Prozorov, T., Burlachkov, L., Yeshurun, Y.: Phys. Rev. Lett. 77, 1596 (1996)
Liang, R., Bonn, D.A., Hardy, W.N.: Phys. Rev. Lett. 76, 835 (1996)
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Qin, Z., Jin, G., Cai, C. et al. Effect of Micro-Phase Separation on Magnetic Response in Pr-Doping YBa2Cu3O7−δ Single Crystals. J Supercond Nov Magn 22, 373–379 (2009). https://doi.org/10.1007/s10948-008-0398-9
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DOI: https://doi.org/10.1007/s10948-008-0398-9