Coherent Growth of α-Fe2O3 in Ti and Nd Co-doped BiFeO3 Thin Films

Huairuo Zhang; Daniel M. Marincel; Susan Trolier-McKinstry; W. Mark Rainforth; Ian M. Reaney

doi:10.1080/21663831.2016.1160260

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Coherent Growth of α-Fe2O3 in Ti and Nd Co-doped BiFeO3 Thin Films

Original Reports | 更新时间：2026-08-19

- Coherent Growth of α-Fe2O3 in Ti and Nd Co-doped BiFeO3 Thin Films
- Materials Research Letters Vol. 4, Issue 3, Pages: 168-173(2016)
- 作者机构：
  
  1. Department of Materials Science & Engineering University of Sheffield
  2. Department of Materials Science and Engineering and Materials Research Institute Pennsylvania State University University Park
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2016.1160260
  CLC：
- Online First：22 March 2016，
  
  Published：2016
- 稿件说明：
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Huairuo Zhang, Daniel M. Marincel, Susan Trolier-McKinstry, et al. Coherent Growth of α-Fe2O3 in Ti and Nd Co-doped BiFeO3 Thin Films[J]. Materials Research Letters, 2016, 4(3): 168-173.
DOI：

Huairuo Zhang, Daniel M. Marincel, Susan Trolier-McKinstry, et al. Coherent Growth of α-Fe2O3 in Ti and Nd Co-doped BiFeO3 Thin Films[J]. Materials Research Letters, 2016, 4(3): 168-173. DOI： 10.1080/21663831.2016.1160260.

摘要

Abstract

Coherent dendritic α-Fe

precipitates were observed to form at the surface of epitaxial films of (Bi

0.75

0.25

)(Fe

0.97

0.03

(BNFO) grown by pulsed laser deposition. The Fe

dendrites are assemblages of nanosized particles with an approximate length of 500 nm. Through the use of atomic resolution scanning transmission electron microscopy

a transition zone at the BNFO/α-Fe

interface

∼2 unit-cells wide

was observed to be Fe

-rich with the perovskite structure. It is proposed that the formation of the Fe

-rich perovskite structure encourages epitaxial growth of the α-Fe

rather than the formation of the incoherent Fe

particulate second phase frequently reported in BiFeO

-based thin films.

Impact Statement

The discovery of the new structure may explain the abnormally high ferromagnetic response observed in the BiFeO

-based single-phase epitaxial films

and will benefit the communities of materials science.

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