Effects of Structural Strain and Rare-Earth Moments on Spin Cycloidal-Plane in Multiferroic Rare-Earth Manganites

Yen Fu Hsiao*, Wei Cheng Kuo, Chun Wei Mi, Kai Ting Chang, Chih-Wei Luo, Kaung-Hsiung Wu, Tzeng Ming Uen, Jiunn-Yuan Lin, Jenh-Yih Juang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A series of orthorhombic multiferroic manganites (o-ReMnO3) thin films with deliberately designed strain states and different rare-earth elements were prepared to unveil the roles played by the strain and 4f -electron moments in determining the magnetic ordering and associated polarizations. The results obtained from temperature-dependent magnetization, dielectric and ferroelectric measurements revealed that the orientations of magnetic reordering and polarization varied with the specific rare-earth element involved. Namely, with the increase of total angular momentum J of the 4f -electrons of rare-earth element the orientation of magnetic reordering was changed from the b-axis (sinusoidal state) for Yb3+ to the a-axis (ab-cycloidal) for Tm3+ and, eventually to the c-axis (bc-cycloidal) for Er3+ and Ho3+. These results indicate that the Re-Mn magnetic exchange interaction plays a more important role than the external strain does in determining the magnetic and hence polarization states in multiferroic o-ReMnO3 manganites. Our results also confirmed the coexistence of different magnetic spin states in o-ReMnO3 thin films.

Original languageEnglish
Pages (from-to)1036-1044
Number of pages9
JournalScience of Advanced Materials
Issue number5
StatePublished - 1 May 2016


  • Cycloidal ordering
  • E-type antiferromagnetic ordering
  • Epitaxial strain
  • Magnetic ordering of rare-earth elements
  • Structural distortion


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