Conduction control at ferroic domain walls via external stimuli

J. C. Yang, C. H. Yeh, Y. T. Chen, S. C. Liao, R. Huang, H. J. Liu, C. C. Hung, S. H. Chen, S. L. Wu, C. H. Lai, Y. P. Chiu, P. W. Chiu, Y. H. Chu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Intriguing functionalities at nano-sized domain walls have recently spawned a new paradigm for developing novel nanoelectronics due to versatile characteristics. In this study, we explore a new scenario to modulate the local conduction of ferroic domain walls. Three controlling parameters, i.e., external electrical field, magnetic field and light, are introduced to the 90° domain walls (90° DWs) of BiFeO3. Electrical modulation is realized by electrical transport, where the mobility of 90° DWs can be altered by gating voltage. We further use the ferromagnetic/antiferromagnetic coupling to reveal the inherent magnetism at the DWs. With an established magnetic nature, magnetotransport has been conducted to introduce magnetic controlling parameter, where a giant positive magnetoresistance change can be observed up to 200%. In addition, light modulated conduction, a core factor for multifunctional applications, is successfully demonstrated (current enhancement by a factor of 2 with 11 W white lamp). These results offer new insights to discover the tunability of domain wall nanoelectronics.

Original languageEnglish
Pages (from-to)10524-10529
Number of pages6
JournalNanoscale
Volume6
Issue number18
DOIs
Publication statusPublished - 2014 Sep 21

Fingerprint

Domain walls
Nanoelectronics
Galvanomagnetic effects
Magnetism
Magnetoresistance
Electric lamps
Modulation
Magnetic fields
Electric potential

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Yang, J. C., Yeh, C. H., Chen, Y. T., Liao, S. C., Huang, R., Liu, H. J., ... Chu, Y. H. (2014). Conduction control at ferroic domain walls via external stimuli. Nanoscale, 6(18), 10524-10529. https://doi.org/10.1039/c4nr03300k

Conduction control at ferroic domain walls via external stimuli. / Yang, J. C.; Yeh, C. H.; Chen, Y. T.; Liao, S. C.; Huang, R.; Liu, H. J.; Hung, C. C.; Chen, S. H.; Wu, S. L.; Lai, C. H.; Chiu, Y. P.; Chiu, P. W.; Chu, Y. H.

In: Nanoscale, Vol. 6, No. 18, 21.09.2014, p. 10524-10529.

Research output: Contribution to journalArticle

Yang, JC, Yeh, CH, Chen, YT, Liao, SC, Huang, R, Liu, HJ, Hung, CC, Chen, SH, Wu, SL, Lai, CH, Chiu, YP, Chiu, PW & Chu, YH 2014, 'Conduction control at ferroic domain walls via external stimuli', Nanoscale, vol. 6, no. 18, pp. 10524-10529. https://doi.org/10.1039/c4nr03300k
Yang JC, Yeh CH, Chen YT, Liao SC, Huang R, Liu HJ et al. Conduction control at ferroic domain walls via external stimuli. Nanoscale. 2014 Sep 21;6(18):10524-10529. https://doi.org/10.1039/c4nr03300k
Yang, J. C. ; Yeh, C. H. ; Chen, Y. T. ; Liao, S. C. ; Huang, R. ; Liu, H. J. ; Hung, C. C. ; Chen, S. H. ; Wu, S. L. ; Lai, C. H. ; Chiu, Y. P. ; Chiu, P. W. ; Chu, Y. H. / Conduction control at ferroic domain walls via external stimuli. In: Nanoscale. 2014 ; Vol. 6, No. 18. pp. 10524-10529.
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