Retraction notices

Intermediate Ce3+ defect level induced photoluminescence and third-order nonlinear optical effects in TiO2–CeO2 nanocomposites

Type
Expression of concern
Notice date
5/22/2017 0:00
Journal
Applied Physics A
Publisher
Springer
Notice DOI
10.1007/s00339-017-0945-y
Original paper DOI
10.1007/s00339-013-8134-0

Reasons

Matching venue names

Name match only, not an authoritative journal identifier.