Research data supporting "Structural properties of thin-film ferromagnetic topological insulators" (C. L. Richardson et al., 2017) Raw data in .csv and .tif, sorted by figure number in the manuscript. HRXRD data is labelled with the sample number, the samples measured were (Bi_y,Sb_1-y)_2-x V_x Te_3 with a 10 nm Te cap layer: -- 1-2: 4QL thickness, x=0.11, y=0.29, SrTiO_3(1 1 1) substrate -- 4: 4QL, x=0.06, y=0.31, SrTiO_3(1 1 1) substrate -- 16005: 10QL, x=0.07, y=0.20, SrTiO_3(1 1 1) substrate -- 16006: 20QL, x=0.07, y=0.20, SrTiO_3(1 1 1) substrate -- 1027: 10QL, x=0.07, y=0.31, Si(1 1 1) substrate -- 1028: 10QL, x=0.07, y=0.31, Al_2 O_3(0 0 0 1) substrate STEM and EDX measurements taken on a 10QL, x=0.07, y=0.20 film on a SrTiO_3(1 1 1) substrate. ~~~Figure 1~~~ FMTI 1-2 2tom scan 5-110 10s.csv (Panel a, symmetric 2theta/omega scan, 10s count time) fmti1-2 rc at 17p4.csv (Panel b, rocking curve/omega scan) fmti1-2 rc at 22p78.csv (Panel c, rocking curve) fmti1-2 rc at 44p40c.csv (Panel d, rocking curve) FMTI 4QL 4 2tom scan 5-80 10s_1.csv (Panel e, as for panel a) FMTI_16005 10QL 2tom scan 5-80 10s_1.csv (Panel e, as for panel a) FMTI 20QL 16006 2tom scan 5-80 10s_1.csv (Panel e, as for panel a) ~~~Figure 2~~~ 11_crop_lesscontrast.tif (Panel a, STEM cross-section) 1_HRSTEM_HEOV12nm.tif (Panel b, HRSTEM at interface) C-Map0-Bi.tif (Energy-dispersive X-ray spectroscopy maps) C-Map1-O.tif C-Map2-Pt.tif C-Map3-Sb.tif C-Map4-Sr.tif C-Map5-Te.tif C-Map6-Ti.tif C-Map7-V.tif ~~~Figure 3~~~ FMTI 10QL 16005 Quick map frame grab peak hunting_8.csv (Panel a, reciprocal space map, phi=-30deg) FMTI 10QL 16005 Quick map frame grab peak hunting_10.csv (Panel b, reciprocal space map, phi=30deg) FMTI 10QL 16005 Quick map frame grab peak hunting_13.csv (Panel c, reciprocal space map phi=90deg) FMTI 10QL 16005 STO_112 phi scan chi offset.csv (Panel d, asymmetric azimuthal scan at SrTiO_3(1 1 2) peak position) FMTI 10QL 16005 Te211 phi scan chi offset_2.csv (Panel d, asymmetric azimuthal scan at Te(2 1 1) peak position) FMTI 10QL 16005 TI_1020 phi scan chi offset 24p5.csv (Panel d, asymmetric azimuthal scan at (Bi,Sb)_2Te_3(1 0 20) peak position) ~~~Figure 4~~~ FMTI 4QL 4 fast RSM 5_1.csv (Panel a, reciprocal space map, 600s count time) FMTI 4QL 4 fast RSM 5_2.csv (Panel a, reciprocal space map, 600s count time) FMTI 4QL 4 fast RSM 3_1.csv (Substrate peak data for panel a) Quick map frame grab 5_1.csv (Panel b, sample 1-2, reciprocal space map, 600s count time) Quick map frame grab 5_2.csv (Panel b, sample 1-2, reciprocal space map, 600s count time) Quick map frame grab 3_1.csv (Sample 1-2, substrate peak data for panel b) FMTI 4QL 4 2tom scan 5-80 10s_1.csv (Panel c, see above) FMTI 1-2 2tom scan 5-110 10s.csv (Panel c, see above) ~~~Figure 5~~~ FMTI 4QL 4 fast RSM 5_1.csv (Panel a, see above) FMTI 4QL 4 fast RSM 5_2.csv (Panel a, see above) FMTI 4QL 4 fast RSM 3_1.csv (Substrate peak data for panel a) FMTI 10QL 16005 fast RSM 5_1.csv (Panel b, reciprocal space map, 600s count time) FMTI 10QL 16005 fast RSM 5_2.csv (Panel b, reciprocal space map, 600s count time) FMTI 10QL 16005 fast RSM 3_2.csv (Substrate peak data for panel b) FMTI 20QL 16006 fast RSM 5_1.csv (Panel c, reciprocal space map, 600s count time) FMTI 20QL 16006 fast RSM 5_3.csv (Panel c, reciprocal space map, 600s count time) FMTI 20QL 16006 fast RSM 3_1.csv (Substrate peak data for panel c) FMTI 10QL 1028_Al2O3 fast RSM 6_1.csv (Panel d, reciprocal space map, 1200s count time) FMTI 10QL 1028_Al2O3 fast RSM 6_2.csv (Panel d, reciprocal space map, 1200s count time) FMTI 10QL 1028_Al2O3 fast RSM 3_4.csv (Substrate peak data for panel d) FMTI 10QL 1027_Si fast RSM 7_1.csv (Panel e, reciprocal space map, 2400s count time) FMTI 10QL 1027_Si fast RSM 3_9.csv (Substrate peak data for panel e) ~~~Supplementary Figure S1~~~ FMTI_16005 10QL 2tom scan 5-80 10s_1.csv (Panel a, SrTiO_3(1 1 1) substrate, symmetric 2theta/omega scan, 10s count time) FMTI 10QL 1028_Al2O3 2tom scan 5-80 10s_1.csv (Panel a, Al_2O_3(0 0 0 1) substrate, symmetric 2theta/omega scan, 10s count time) FMTI 10QL 1027_Al2O3 2tom scan 5-80 10s_1.csv (Panel a, Si(1 1 1) substrate, symmetric 2theta/omega scan, 10s count time) FMTI 10QL 1028_Al2O3 rc 2t 17p46.csv (Panel b, rocking curve) FMTI 10QL 1028_Al2O3 rc 2t 22p91.csv (Panel c, rocking curve) FMTI 10QL 1028_Al2O3 rc 2t 44p58.csv (Panel d, rocking curve) FMTI 10QL 1027_Si rc 2t 17p44_2.csv (Panel e, rocking curve) FMTI 10QL 1027_Si rc 2t 23p18.csv (Panel f, rocking curve) FMTI 10QL 1027_Si rc 2t 44p66.csv (Panel g, rocking curve) ~~~Supplementary Figure S2~~~ (Non-negative matrix factorisation of the EDX dataset: factors and corresponding maps) NMF-factors.csv NMFMap0.tif NMFMap1.tif NMFMap2.tif NMFMap3.tif NMFMap4.tif NMFMap5.tif ~~~Supplementary Figure S3~~~ FMTI 10QL 16005 Quick map frame grab peak hunting_13.csv (Panel a, as above, phi=90deg) FMTI 10QL 16005 Quick map frame grab peak hunting long_1 (Panel b, reciprocal space map, phi=-37deg) (For these maps, SrTiO_3(1 1 2) was measured as 2theta=57.8400deg, omega=46.9239deg, offset=18.0039deg.)