Functional materials R. Pathak1, A. Joseph2, P. Dutta1, B. Joseph3, J. Duhan4, S. Chandra1 C. Narayana2, K. Pal4, K. Biswas1,5 1 New Chemistry Unit, JNCASR, Bangalore, India 2 Chemistry and Physics of Materials Unit, JNCASR, Bangalore, India 3 Elettra - Sincrotrone Trieste S.C.p.A., Trieste, Italy 4 Department of Physics, IIT Kanpur, Kanpur, India 5 School of Advanced Materials and International Centre of Materials Science, JNCASR, Bangalore, India e-mail: kanishka@jncasr.ac.in Acknowledgments The authors acknowledge financial support from Swarnajayanti fellowship grant, Anusandhan National Research Foundation, ANRF (SB/ SJF/2019-20/06), Department of Science & Technology, India. Original paper R. Pathak et al., Angew. Chem. Int. Ed., 64, 14 (2025); DOI: 10.1002/anie.202422652. Fig. 1 Figure 1. (a) Evolution of XRD of BiTe with increase in pressure. (b) Variation of c/a parameter with pressure showing anomalies at 1 and 3 Gpa (marked by arrows). (c) Visualization of the Fermi surface of BiTe at 1 and 3 GPa. (d) Orbital resolved electronic band structure of BiTe (red, blue and pink spheres correspond to 6p of Bi in bilayer, 5p of Te and 6p of Bi in quintuple layers respectively) at 0 GPa showing delocalization of orbitals along Γ-A direction confirming metavalent bonding. (All figures are Reproduced with permission, Copyright, 2025, Wiley). Elettra Highlights 2024–2025 33
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