# Fileset

[Supplementary file.docx](https://mdr.nims.go.jp/filesets/dd41e00d-97bd-4a0b-9d45-6827a81ab7d1/download)

## Creator

[P. Tozman](https://orcid.org/0000-0002-8848-0197), G. Hrkac, [C.E. Patrick](https://orcid.org/0000-0002-1843-1269), J.B. Staunton, [T. Saito](https://orcid.org/0000-0001-9537-5072), [T. Sasaki](https://orcid.org/0000-0002-5952-7638), [T. Ohkubo](https://orcid.org/0000-0003-3548-1951), [H. Sepehri-Amin](https://orcid.org/0000-0002-7856-7897)

## Rights

[In Copyright](http://rightsstatements.org/vocab/InC/1.0/)

## Other metadata

[Effect of Co on twin formation and magnetic properties of Sm(Fe,Ti,V)12 alloys](https://mdr.nims.go.jp/datasets/954b60de-4a53-4587-8826-4756789f519a)

## Fulltext

Supplementary MaterialsEffect of Co on twin formation and magnetic properties of Sm(Fe,Ti,V)12 alloysP. Tozman1*, G. Hrkac2, C. E. Patrick3, J. B. Staunton4, T. Saito1, T. Sasaki1, T. Ohkubo1, H. Sepehri-Amin1*1 National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan2College of Engineering, Mathematics, and Physical Sciences, University of Exeter, Exeter, Devon, United Kingdom3 Department of Materials, University of Oxford, Oxford OX1 3PH, United Kingdom4 Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom* Corresponding authors: H. Sepehri-Amin (h.sepehriamin@nims.go.jp) and P. Tozman (pelin.tozman@tu-darmstadt.de)Fig. S1. The XRD patterns of (a) annealed Sm(Fe1-xCox)10V2 and (b) as-cast Sm(Fe1-xCox)11Ti1.In Fig. S1, the XRD patterns of annealed Sm(Fe1-xCox)10V2 and as-cast Sm(Fe1-xCox)11Ti1 were obtained at 300 K. The as-cast Sm(Fe1-xCox)11Ti1 exhibit single phase. Sm(Fe1-xCox)10V2 exhibit trace amount of secondary α-Fe phase for x = 0 and 0.1 and SmFe2 phase for x = 0.4. In Fig. S2, XRD patterns of the as-cast and annealed SmFe10V2 are compared. In the as-cast ingot, an intense peak of α-Fe is observed, along with the SmFe2 phase. Annealing at 1313 K for 2 days decreases substantially α-Fe content. However, in the case of Ti-containing alloys, the as-cast sample shows mainly 1:12 phase while annealing at the elevated temperature lead to the formation of Fe and (Fe,Co)₂Ti phases [1]. Fig. S2 The XRD patterns of as-cast and annealed SmFe10V2 ingot Fig. S3. The M-T measurement for (a) annealed Sm(Fe1-xCox)10V2 and (b) as-cast Sm(Fe1-xCox)11Ti1 measured under 500 Oe external magnetic field.The thermomagnetic measurement (Fig. S3) indicates that all compounds have magnetically single phase. The Curie temperature Tc is determined from the intersection of the extrapolated baseline. Fig. S4. The variation of the lattice parameter a, c and c/a ratio of ThMn12 phase is illustrated for annealed Sm(Fe1-xCox)10V2 and as-cast Sm(Fe1-xCox)11Ti1.The lattice parameters a, c and c/a ratio are deduced from the XRD patterns (Fig. S4). Co substitution leads to a decrement in c/a ratio Sm(Fe0.8Co0.2)11Ti1 which indicates the most stable condition. Replacing Fe with Co decreases lattice parameters a and c for both compositions. Fig. S4. M-H curves of magnetically oriented and as-cast Sm(Fe1-xCox)11Ti1 and (b) annealed Sm(Fe1-xCox)10V2 that are measured parallel and perpendicular to the applied field. [1] P. Tozman, H. Sepehri-Amin, Y. K. Takahashi, S. Hirosawa, K.  Hono, Intrinsic magnetic properties of Sm(Fe1-xCox)11Ti and Zr-substituted Sm1-yZry(Fe0.8Co0.2)11.5Ti0.5 compounds with ThMn12 structure toward the development of permanent magnets, Acta Mater. 153 (2018) 354-363.16image2.pngimage3.jpegimage4.jpegimage5.jpegimage1.jpeg