Proof of the thermodynamical stability of the E' center in SiO2.

The E' center is a paradigmatic radiation-induced defect in SiO2 whose peculiar EPR and hyperfine activity has been known for over 40 years. This center has been traditionally identified with a distorted, positively charged oxygen vacancy V(+)O. However, no direct proof of the stability of this defect has ever been provided, so that its identification is still largely incomplete. Here we prove directly that distorted V(+)O is metastable and that it satisfies the key requirements for its identification as E', such as thermal and optical response, and activation-deactivation mechanisms.

• Publication year

  2000

• Venue

  Physical Review Letters

• Publication date

  2000-09-29

• Fields of study

  Materials Science, Physics, Chemistry, Medicine

• Identifiers
  DOI 10.1103/PhysRevLett.86.3064arXiv cond-mat/0009465PMID 11290108
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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