Current-driven interface magnetic transition in complex oxide heterostructure

F. Fang, H. Zhai, X. Ma, Y. W. Yin, Qi Li, G. Lüpke

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The interfacial spin state of n-type BaTiO 3 /La 0.5 Ca 0.5 MnO 3 /La 0.7 Sr 0.3 MnO 3 heterojunction and its dependence on gate voltage is investigated with magnetic second-harmonic generation at 78 K. The injection of minority spins alters the interface magnetization of La 0.7 Sr 0.3 MnO 3 from ferromagnetic to antiferromagnetic exchange coupled, while the bulk magnetization remains unchanged. The emergent interfacial antiferromagnetic interactions are attributed to modulations of the strong double-exchange interaction between conducting electron spins and local magnetic moments. The results will help promote the development of new interface-based functionalities and device concepts.

Original languageEnglish (US)
Article number04F101
JournalJournal of Vacuum Science and Technology B: Nanotechnology and Microelectronics
Volume35
Issue number4
DOIs
StatePublished - Jul 1 2017

Fingerprint

Oxides
Heterojunctions
Magnetization
magnetization
oxides
Exchange interactions
minorities
Harmonic generation
Magnetic moments
electron spin
heterojunctions
harmonic generations
magnetic moments
Modulation
interactions
injection
modulation
conduction
Electrons
Electric potential

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

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Current-driven interface magnetic transition in complex oxide heterostructure. / Fang, F.; Zhai, H.; Ma, X.; Yin, Y. W.; Li, Qi; Lüpke, G.

In: Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics, Vol. 35, No. 4, 04F101, 01.07.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Current-driven interface magnetic transition in complex oxide heterostructure

AU - Fang, F.

AU - Zhai, H.

AU - Ma, X.

AU - Yin, Y. W.

AU - Li, Qi

AU - Lüpke, G.

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