Size effect on multiferroicity of GdMn2O5 nanorods

Yang Hsiang Tung, Yi Jung Chen, Chun Chuen Yang, Cheng Yu Weng, Yen Kai Huang, Yang Yuan Chen, Maw Kuen Wu

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Four GdMn2O5 nanorod samples of various axial lengths (〈LC〉) along the c axis were synthesized. The antiferromagnetic and ferroelectric ordering disappeared as 〈LC〉 decreased to 66 and 55 nm. Various ferroic critical sizes were observed for the two types of domain sizes. Between T = 18 and 26 K, a charge ordering X-ray diffraction peak appeared at 〈LC〉 = 79 nm. This peak was associated with structural distortion and axial length. The broken multiferroicity of the GdMn2O5 nanorods limits their practical application. For applications in memory devices, the estimated maximal capacity is approximately 650 Gbits/in2.

Original languageEnglish
Pages (from-to)336-342
Number of pages7
JournalChinese Journal of Physics
Volume70
DOIs
StatePublished - Apr 2021

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