cubic表晶体属立方晶系, Fm-3m为空间群符号, 表明其晶体为立方晶系, 点阵形式为立方面心, 点群为Oh, 在其3个位方向上(a,a+b+c, a+b)上的对称元素分别为 4/m -3 2/m.常见晶体中NaCl, Cu Ag Au CaF2都属该空间群.
structure of Fe3Al-type with cubic structure (space group: Fm-3m, No. 225) for Ru3Al 。
The aqueous synthesis method to prepare large cage mesoporous silica with cubic Fm3m structure is based on the use of EO106PO70EO106 triblock copolymer (F127) at low HCl concentrations, with no additional salts or organic additives. Here, emphasis is put on the low HCl concentration regime, ...
According to the results of electron diffraction reported in the literature this carbon allotrope has a space group Fm \(\bar{3}\) m (group number 225) with a lattice parameter of about 3.54–3.57 Å. Nevertheless, because of the closeness of its lattice parameter to that of diamond...
中文: X射线的实验结果表明:样品均形成了在a-b方向上具有双倍周期的钙钛矿结构,属于立方晶系,晶体空间群为Fm3m(No225). Sr2YRuO6原胞为立方结构(a=0.8164nm),Y离子和Ru离子分别有序占据4a(0,0,0)和4b(1/2,1/2,1/2)原子等效位置.英文: Usually, cubic splines are expressed by four polynomial ...
中文: X射线的实验结果表明:样品均形成了在a-b方向上具有双倍周期的钙钛矿结构,属于立方晶系,晶体空间群为Fm3m(No225). Sr2YRuO6原胞为立方结构(a=0.8164nm),Y离子和Ru离子分别有序占据4a(0,0,0)和4b(1/2,1/2,1/2)原子等效位置.英文: Usually, cubic splines are expressed by four polynomial ...
System: cubic Space Group: Fm-3m (no. 225)a: 4.270 Density (Dx): 6.941...
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-1 .0 GO TO 3 9 ALL W E I G H T S = l r 4 4 1 LOOK AT EACH P O I N T AND WEIGHT THEM I F YOU WANT T O A 215 A 216 A 217 A 218 A 219 A 220 A 221 A 222 A 223 A 224 A 225 A 226 A 227 A 228 A 229 3 6 CALL PLPT (X.YY.NOI XRAY ( 2 J = X ...
www.nature.com/scientificreports OPEN received: 13 May 2016 accepted: 23 June 2016 Published: 25 July 2016 Controllable Phase Transformation and Mid-infrared Emission from Er3+-Doped Hexagonal-/Cubic- NaYF4 Nanocrystals Dandan Yang1, Dongdan Chen1, Huilin He1, Qiwen Pan1, Quanlan ...