Temperature Raman study of Li4Ti5O12 and ambiguity in the number of its bands

Author:

Nikiforov Aleksey A.1ORCID,Krylov Alexander S.2ORCID,Krylova Svetlana N.2ORCID,Gorshkov Vadim S.3ORCID,Pelegov Dmitry V.1ORCID

Affiliation:

1. Institute of Natural Sciences and Mathematics Ural Federal University Ekaterinburg Russia

2. L.V. Kirensky Institute of Physics SB RAS Krasnoyarsk Russia

3. Independent Researcher Ekaterinburg Russia

Abstract

AbstractThe two primary physical methods for identifying lithium titanate, a negative electrode material used commercially, are X‐Ray diffraction and Raman spectroscopy. Although there are many publications on this topic, they are focused mainly on chemistry, so there are still some points that require clarification from a physical and methodological point of view. Difference of experimentally observed and theoretically predicted Raman spectra was explained through a combination of experiments and computations. The work comprises experiments and computations to explain why there are different numbers of predicted and observed Raman‐active bands. Our low‐temperature study and the analysis of thermal shifts during heating led us to conclude that the approach with surplus bands is advantageous and we recommend using major F2g band shifts to estimate the sample heating.

Funder

Russian Science Foundation

Publisher

Wiley

Subject

Spectroscopy,General Materials Science

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Big-Data Approach to Study Laser-Induced Effects during Raman Spectra Measurement in Li4Ti5O12;Bulletin of the Russian Academy of Sciences: Physics;2023-12

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