Figure 3 | Scientific Reports

Figure 3

From: Weak Antilocalization and Anisotropic Magnetoresistance as a Probe of Surface States in Topological Bi2TexSe3−x Thin Films

Figure 3

Magnetoconductance (\(\Delta \sigma \)) vs. Magnetic field for both in-plane and out-of-plane magnetic fields and the Hikami-Larkin-Nagaoka (HLN) and Tkachov-Hankiewicz (TH) fits with a linear background term (quadratic for x = 2.5). Fits at 3 K for the (a) Bi2Se3, (b) Bi2Te2Se, and (c) Bi2Te2.5Se0.5 samples for in-plane and out-of-plane fields. WAL was extremely weak compared to the much stronger quadratic background for Bi2Te3. Thus, it is not included in these plots. (d) Extracted coherence length from the HLN fit is used in the TH fit to calculate the skin depth.

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