Crystallography Open Database

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Searching space group like 'A 21 a m'

COD ID	Links	Formula	Space group	Cell parameters	Cell volume	Bibliography
1521427	CIF	Bi5 Fe O15 Ti3	A 21 a m	5.4677; 5.4396; 41.2475 90; 90; 90	1226.79	Ko, T.-Y.; Jun, C.-H.; Lee, J.-S. A combined Rietveld refinement on the crystal structure of a magnetoelectric Aurivillius phase Bi5 Ti3 Fe O15 using neutron and X-ray powder diffraction The Korean Journal of Ceramics, 1999, 5, 341-347
1521700	CIF	Bi2.1 O9 Sr0.85 Ta2	A 21 a m	5.554; 5.551; 25.144 90; 90; 90	775.196	Onodera, A.; Kubo, T.; Yoshio, K.; Kojima, S.; Yamashita, H.; Takama, T. Crystal structure of high-temperature paraelectric phase in bi-layered perovskite Sr0.85 Bi2.1 Ta2 O9 Japanese Journal of Applied Physics, Part 1, 2000, 39, 5711-5715
1521733	CIF	Cr2.5 O9 Sr4.5	A 21 a m	10.7959; 5.4012; 30.07549 90; 90; 90	1753.73	Pelloquin, D.; Wahl, A.; Michel, C.; Masset, A.C.; Raveau, B.; Maignan, A. A novel mixed valent chromium-layered oxide with peculiar magnetic properties: Sr4.5 Cr2.5 O9 Journal of Solid State Chemistry, 2000, 154, 375-383
1521923	CIF	Bi2 O9 Sr Ta2	A 21 a m	5.52237; 5.52408; 25.0264 90; 90; 90	763.456	Shimakawa, Y.; Nakagawa, Y.; Kubo, Y.; Kamiyama, T.; Asano, H. Crystal structures of Sr Bi2 Ta2 O9 and Sr0.8 Bi2.2 Ta2 O9 ferroelectric materials Materials Research Society Symposia Proceedings, 1999, 541, 523-528
1524669	CIF	Bi2.86 O15 Pb0.82 Ti4	A 21 a m	5.4535; 5.4312; 41.415 90; 90; 90	1226.67	Kennedy, B.J.; Ismunandar; Zhou Qingdi; Kubota, Y.; Kato, K. Cation disorder and phase transitions in the four-layer ferroelectric Aurivillius phases A Bi4 Ti4 O15 (A = Ca, Sr, Ba, Pb) Journal of Solid State Chemistry, 2008, 181, 1377-1386

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