Line Plot from Scientific Research

Top, summary of the previously reported temperature dependence of anisotropy measured via various methods, including angle-dependent magnetoresistance 22 , 34 , electric magneto-chiral anisotropy 42 , elasto-resistivity 35 , nuclear magnetic resonance 26 , magneto-optical Kerr effect 30 and optical polarization rotation measurement 37 . Interestingly, all results measured without magnetic field demonstrate that the anisotropy occurs once the charge order is formed. Meanwhile the in-field measurements consistently reveal yet another temperature scale ( T ') below T CDW . Bottom, the anisotropy measured in devices S1, S2, S3 and S4. The field-induced anisotropy occurs only below T CDW and displays a gradual increase starts at T ', while the strain-induced anisotropy onsets exactly at T CDW . The inset panel presents the T -dependent anisotropy of the order parameter under different conditions reproduced by GinzburgLandau theory. We choose GinzburgLandau parameters corresponding to scenario in Fig. 2b,c .

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