Journal Article

PUBDB-2026-01099

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On the local structural modifications in iso-valent substituted barium titanate based relaxors: Study of BaTi$_{0.6}$Hf$_{0.4}$O$_3$ ceramic

Dhanetwal, M.Extern* ; Mirshahi, R. ; Surampalli, A.Extern* ; Prajapat, D.Extern*DESY* ; Meneghini, C.Extern* ; Raghavendra Reddy, V. (Corresponding author)

2025
Elsevier Lausanne

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Please use a persistent id in citations: doi:10.1016/j.jallcom.2025.183338

Abstract: The present study provides detailed temperature-dependent measurements for the relaxor composition of isovalent (Hf$^{4+}$) substituted BaTiO$_3$ (BTO), specifically BaTi$_{0.6}$Hf$_{0.4}$O$_3$. The observations reveal distinct structural modifications associated with its dielectric maxima. By combining these results with our earlier findings on Sn$^{4+}$ substituted BTO (Surampalli et al., 2019; Dhanetwal et al., 2024), the study highlights the critical role of atomic-scale structural changes in determining the relaxor properties of iso-valent substituted BTO-based materials. These insights contribute to a deeper understanding of relaxors, offering valuable guidance for the development of lead-free relaxors beyond phenomenological models.

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Contributing Institute(s):

1. PETRA-S (FS-PETRA-S)
2. FS DOOR-User (FS DOOR-User)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. INDIA-DESY - INDIA-DESY Collaboration (2020_Join2-INDIA-DESY) (2020_Join2-INDIA-DESY)

Experiment(s):

1. PETRA Beamline P65 (PETRA III)

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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