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The orthorhombic to tetragonal phase transition in Ba2Cu3O4Cl2 has been investigated. This transition was observed by X-ray powder diffractometry carried out in samples heat treated between 700 and 750 °C. Results of X-ray diffractograms simulation confirm the phase transition. dc-Magnetization measurements performed in SQUID showed the existence of a signal due to diamagnetism. The results suggest the existence of localized superconductivity and explain the different magnetic properties reported in the literature for the Ba2Cu3O4Cl2 compound.
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Wydawca
Czasopismo
Rocznik
Tom
Strony
585--590
Opis fizyczny
Bibliogr. 16 poz.
Twórcy
autor
autor
autor
- Escola de Engenharia de Lorena – USP, P.O. Box 116, Lorena – SP 12606-810, Brazil, luz@physics.montana.edu
Bibliografia
- [1] AL-MAMOURI M., EDWARDS P.P., GREAVES C., SLASKI M., Nature, 369 (1994), 382.
- [2] ADACHI S., TATSUKI T., TAMURA T., TANABE K., Chem. Mater., 10 (1998), 2860.
- [3] VON KIPKA R., MULLER-BUSCHBAUM H.K., Z. Anorg. Allg. Chem., 419 (1976), 98.
- [4] YAMADA K., SUZUKI N., AKIMITSU J., Physica B, 213–214 (1995), 191.
- [5] RUCK K., ECKERT D., KRABBES G., WOLF M., MÜLLER K.-H., J. Solid State Chem., 141 (1998), 378.
- [6] NORO S., HARADA H., YAMADAYA T., TADOKORO M., SUZUKI H., Mater. Sci. Eng. B, 25 (1994), 167.
- [7] ITO T., YAMAGUCHI H., OKA K., Phys. Rev. B, 55 (1997), R684.
- [8] NORO S., TUYUKI Y., NAKANO R., MAEDAI Y., Physica B, 322 (2002), 57.
- [9] JINHUA Y., ZHIGANG Z., AKIYUKI M., Physica C, 341 (2000), 489.
- [10] DA LUZ M.S., DOS SANTOS C.A.M., MACHADO A.J.S., FERREIRA B., Braz. J. Phys., 3 (2002), 744.
- [11] JORGENSEN J.D., BENO M.A., HINKS D.G., SODERHOLM L., VOLIN K.J., HITTERMAN R.L., GRACE J.D., SCHULLER I.K., SEGRE C.U., ZHANG K., KLEEFISH M.S., Phys. Rev. B, 36 (1987), 3608.
- [12] JIN C.Q., WU X.J., LAFFEZ P., TATSUKI T., TAMURA T., ADACHI S., YAMAUCHI H., KOSHIZUKA N., TANAKA S., Nature, 375 (1995), 301.
- [13] CHE G.C., LIU G.D., REN Z.A., DONG C., CHEN H., NI Y.M., JIA S.L., ZHAO Z.X., Supercond. Sci. Technol., 15 (2002), 875.
- [14] TATSUKI T., ADACHI S., ITOH M., TAMURA T., WU X.J., JIN C.Q., KOSHIZUKA N., TANABE K., Physica C, 255 (1995), 61.
- [15] ZENITANI Y., INARI K., SAHODA S., UEHARA M., AKIMITSU J., KUBOTA N., AYABE M., Physica C, 248 (1995), 167.
- [16] KRAUS W., NOLZE G., J. Appl. Cryst., 29 (1996), 301.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW8-0006-0030