Erratum: Methodological Approach to the High-Pressure Synthesis of Nonmagnetic Li₂B⁴⁺B′⁶⁺O₆ Oxides (Chemistry of Materials (2022) 34: 1 (186−196) DOI: 10.1021/acs.chemmater.1c03073)

Figure 4a and b in this article missed the calculated values of the specific surface energies of AP- and HP-LTTO. The revised version of Figure 4 has been attached with specific surface energy values. (Figure Presented) The UV−vis spectra of AP- and HP-LTTO in Figure S3c and d were incorrect because a mistake was made during data processing. The revised spectra are shown in the SI. The optical band gaps are 3.7 and 3.6 eV for AP- and HP-LTTO, respectively, slightly smaller than the calculated 4 eV for both phases. Both the calculated and measured band gaps exhibit the feature of a wide band gap for AP- and HP-LTTO, which still confirms the original conclusion in the main text.