Crystallography Open Database

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Searching space group like 'P m m a'

COD ID	Links	Formula	Space group	Cell parameters	Cell volume	Bibliography
1523679	CIF	Ir Mo	P m m a	4.429; 2.752; 4.804 90; 90; 90	58.554	Giessen, B.C.; Grant, N.J.; Jaehnigen, U. Ordered A B and A B3 phases in T6-T9 alloy systems and a modified Mo-Ir phase-diagram Journal of the Less-Common Metals, 1966, 10, 147-150
1523681	CIF	Ir W	P m m a	4.452; 2.76; 4.811 90; 90; 90	59.115	Giessen, B.C.; Jaehnigen, U.; Grant, N.J. Ordered AB and AB3 phases in T6-T9 alloy systems and a modified Mo-Ir phase diagram Journal of the Less-Common Metals, 1966, 10, 147-150
1522782	CIF	Nb Rh	P m m a	4.51; 2.813; 4.808 90; 90; 90	60.997	Ritter, D.L.; Giessen, B.C.; Grant, N.J. The niobium(columbium)-rhodium binary system. II. Crystal structure relationships Transactions of the Metallurgical Society of Aime, 1964, 230, 1259-1267
1510087	CIF	Au0.25 Hg0.75 Mn	P m m a	4.71; 3.08; 4.81 90; 90; 90	69.778	Nakagawa, Y.; Hori, T. Cubic to orthorhombic transition and magnetic property of Mn Hg1-x Aux, (X=.05-.25) Journal of the Physical Society of Japan, 1986, 55, 4025-4029
1510336	CIF	Au1.05 Cd0.95	P m m a	4.766; 3.151; 4.859 90; 90; 90	72.971	Miyazaki, S.; Otsuka, K.; Ohba, T.; Emura, Y. Crystal structure of gamma-martensite in Au-47.5 at.% Cd alloy Materials Transactions, JIM, 1990, 31, 12-17
1510072	CIF	Au Cd	P m m a	4.7645; 3.154; 4.8644 90; 90; 90	73.098	Chang, L.C.; Read, T.A. Plastic deformation and diffusionless phase changes in metals - The gold-cadmium beta phase Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers, 1951, 189, 47-52
2310317	CIF	Cd Mg	P m m a	5.0051; 3.2271; 5.277 90; 90; 90	85.234	Steeple, H. The crystal structure of the cadmium-magnesium alloy, Cd Mg Acta Crystallographica (1,1948-23,1967), 1952, 5, 247-249
9009986	CIF	As0.667 Cu H2.752 O3	P m m a	8.3212; 2.9377; 4.6644 90; 90; 90	114.022	Sarp H; Cerny R Theoparacelsite, Cu3(OH)2As2O7, a new mineral: its description and crystal structure Archives des Sciences, Geneve, 2001, 54, 7-14
1540756	CIF	Cu Fe2 Ge2	P m m a	4.978; 3.97; 6.777 90; 90; 90	133.932	Zavalii, I.Yu.; Pecharskii, V.K.; Bodak, O.I. Crystal structure of the compounds Cu Fe2 Ge2 and Cu1±x Co2∓x Ge2 Soviet Physics, Crystallography (= Kristallografiya), 1987, 32, 35-37
1525483	CIF	Co2 Ga Pr	P m m a	5.021; 4.043; 6.86 90; 90; 90	139.257	Yarmolyuk, Ya.P.; Kripyakevich, P.I. Crystal structure of the compounds Pr Co2 Ga and La Co2 Ga Dopovidi Akademii Nauk Ukrains'koi RSR, Seriya A: Fiziko-Tekhnichni ta Matematichni Nauki, 1976, 1976, 86-88
9017897	CIF	Fe0.038 Mg1.962 O4 Si	P m m a	5.802; 2.905; 8.411 90; 90; 90	141.766	Tomioka, N.; Bindi, L.; Okuchi, T.; Miyahara, M.; Iitaka, T.; Li, Z.; Kawatsu, T.; Xie, X.; Purevjav, N.; Tani, R.; Kodama, Y. Poirierite, a dense metastable polymorph of magnesium iron silicate in shocked meteorites Communications Earth & Environment, 2021, 2
1564482	CIF	Fe0.04 Mg1.96 O4 Si	P m m a	5.802; 2.905; 8.411 90; 90; 90	141.8	Tomioka, N.; Bindi, L.; Okuchi, T.; Miyahara, M.; Iitaka, T.; Li, Z.; Kawatsu, T.; Xie, X.; Purevjav, N.; Tani, R.; Kodama, Y. Poirierite, a dense metastable polymorph of magnesium iron silicate in shocked meteorites Communications Earth and Environment, 2021, 2, 1-8
4002817	CIF	Bi Cu	P m m a	5.188995; 4.230802; 7.86657 90; 90; 90	172.7	Clarke, Samantha M.; Amsler, Maximilian; Walsh, James P. S.; Yu, Tony; Wang, Yanbin; Meng, Yue; Jacobsen, Steven D.; Wolverton, Chris; Freedman, Danna E. Creating Binary Cu‒Bi Compounds via High-Pressure Synthesis: A Combined Experimental and Theoretical Study Chemistry of Materials, 2017, 29, 5276
1538109	CIF	Rh7.2 Ta4.8	P m m a	13.551; 2.822; 4.742 90; 90; 90	181.338	Giessen, B.C.; Grant, N.J.; Ibach, H. The constitution diagram Ta-Rh Transactions of the Metallurgical Society of Aime, 1964, 230, 113-122
1523600	CIF	Ir Ta	P m m a	13.661; 2.83; 4.803 90; 90; 90	185.687	Ferguson, W.H.jr.; Grant, N.J.; Giessen, B.C. The constitution diagram tantalum-iridium Transactions of the Metallurgical Society of Aime, 1963, 227, 1401-1406
2300622	CIF HKL	Mn1.52 Ni2 Sn0.48	P m m a	8.6068; 5.6226; 4.3728 90; 90; 90	211.611	Lin, Chunqing; Yan, Haile; Zhang, Yudong; Esling, Claude; Zhao, Xiang; Zuo, Liang Crystal structure of modulated martensite and crystallographic correlations between martensite variants of Ni~50~Mn~38~Sn~12~ alloy Journal of Applied Crystallography, 2016, 49, 1276-1283
1510283	CIF	Au Rb Te	P m m a	5.936; 5.078; 7.205 90; 90; 90	217.18	Bronger, W.; Kathage, H.U. Zur Synthese und Kristallstruktur von Alkalimetall-Gold-Chalcogeniden AAuX mit A= Na,K,Rb oder Cs und X= S, Se oder Te Journal of Alloys Compd., 1992, 184, 87-94
4002175	CIF	B3 Nb3 Ru3	P m m a	10.8672; 3.1543; 6.35 90; 90; 90	217.67	Xie, Weiwei; Luo, Huixia; Baroudi, Kristen; Krizan, Jason W.; Phelan, Brendan F.; Cava, Robert J. Fragment-Based Design of NbRuB as a New Metal-Rich Boride Superconductor Chemistry of Materials, 2015, 27, 1149
1529171	CIF	Al4 Co La	P m m a	7.701; 4.082; 7.023 90; 90; 90	220.771	Rykhal', R.M.; Yarmolyuk, Ya.P.; Zarechnyuk, O.S. Crystal structure of the compounds La Co Al4, Ce Co Al4 and Pr Co Al4 Dopovidi Akademii Nauk Ukrains'koi RSR, Seriya A: Fiziko-Tekhnichni ta Matematichni Nauki, 1977, 1977, 265-268
9016918	CIF	Fe2 O4 Ti	P m m a	9.059; 2.659; 9.166 90; 90; 90	220.79	Yamanaka, T.; Kyono, A.; Nakamoto, Y.; Meng, Y.; Kharlamova, S.; Struzhkin, V. V.; Mao, H. High-pressure phase transitions of Fe3-xTixO4 solid solution up to 60 GPa correlated with electronic spin transition Note: P = 61 GPa American Mineralogist, 2013, 98, 736-744

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