Accurate comparative measurement of oxygen content variations in YBa2Cu3O7-δ films due to postdeposition annealing

Applied Physics Letters

Volumn 78, Issue 5, 2001, Pages 649-651

  Zhai, H Y ^a   Zhang, Z H ^a   Chu, W K ^a  

^a University of Houston   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000171431     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1344571     Document Type: Article

References (22)

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9. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
10. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
11. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
12. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
13. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
14. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
15. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
16. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
17. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
18. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
19. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
20. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
21. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).
22. PCPDF V 2.01, 1998 JCPDS-International Center for Diffraction Data. Originally from the following references: W. Wong-Ng, Powder Diffr. 3, 114 (1988); H. Shaked, J. D. Jorgensen, D. G. Hinks, R. L. Hitterman, and B. Dabrowski, Physica C 205, 225 (1993); C. K. Lowe-Ma and T. A. Vanderah, ibid. 201, 233 (1992); M. Guillaume, P. Allenspach, W. Henggeler, J. Mesot, B. Roessli, U. Staub, P. Fischer, A. Furrer, and V. Trounov, J. Phys.: Condens. Matter 6, 7963 (1994); S. Simon, K. Truebenbach, and H. Borrmann, J. Solid State Chem. 106, 128 (1993); S. Miraglia, F. Beech, A. Santoro, D. Tran Qui, S. A. Sunshine, and D. W. Murphy, Mater. Res. Bull. 22, 1733 (1987); J. Grybos, D. Hohlwein, and F. Kubanek, Physica C 244, 349 (1995); C. R. Taylar and C. Greaves, ibid. 235, 853 (1994); M. Raudsepp, F. C. Hawthorne, X. Z. Zhou, J. Maartense, A. H. Morrish, and Y. L. Luo, Can. J. Phys. 65, 1145 (1987); Z. Gao, B. Du, Y. Peng, H. Gao, Z. Wang, C. Zhu, J. Kang, J. Li, J. Yang, B. Zhang, Y. Ding, J. Kang, and W. Wang, Physica C 203, 45 (1992); A. Nishida, Fukuoka Daigaku Rigaku Shuho 23, 155 (1993); E. Kim and T. S. Yang, Sae Mulli 32, 839 (1992); A. Simon. Solid State Chem. 77, 200 (1988); A. Mbalagurov and J. Piechota. NATO ASI Ser., Ser. E 209, 309 (1992).