Crystal structure, mechanical exfoliation and magnetism measurements of RETi3Bi4. (IMAGE)

Science China Press

Crystal structure, mechanical exfoliation and magnetism measurements of RETi3Bi4.

Caption

(a) Crystal structure diagrams of RETi3Bi4. (b) The first Brillouin zone (BZ) and two-dimensional projected surface of RETi3Bi4. (c)–(e) Optical images and the corresponding AFM line–scanning profiles of the few-layer flakes of (c) EuTi3Bi4, (d) GdTi3Bi4, and (e) SmTi3Bi4 respectively. (f)–(h) Magnetization versus magnetic field for (f) EuTi3Bi4(2 K, 5 K, 10 K, 15 K, 20 K and 50 K, H//c), (g) GdTi3Bi4(2 K, 5 K, 10 K, 15 K, 20 K and 50 K, H//c) and (h) SmTi3Bi4(3 K, 5 K, 10 K, 15 K, 20 K and 30 K, H//ab plane). (i)–(k) FC–ZFC curves under an external magnetic field of 100 Oe of (i) EuTi3Bi4(H//c), (j) GdTi3Bi4(H//c), and (k) SmTi3Bi4(H//ab) respectively.

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