Rocksalt-type PrO epitaxial thin film as a weak ferromagnetic Kondo lattice

Hirokazu Shimizu, Daichi Oka, Kenichi Kaminaga, Daichi Saito, Taku Yamamoto, Nobuto Abe, Noriaki Kimura, Daisuke Shiga, Hiroshi Kumigashira, Tomoteru Fukumura

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3 Citations (Scopus)


A unique Kondo lattice praseodymium monoxide PrO was synthesized in the form of an epitaxial thin film. The rocksalt-type PrO thin films with a 4f25d1 electronic configuration showed metallic conduction with a local resistivity minimum at 7 K as a result of the Kondo effect. In contrast to the other paramagnetic praseodymium monochalcogenides, PrO showed weak ferromagnetism below 28 K, followed by a transition to a more ferromagneticlike phase around 5 K. Emergence of the weak ferromagnetism probably originated from the enhanced 4f-4f exchange interaction by the short Pr-Pr distance. For the ferromagneticlike phase below 5 K, magnetic hysteresis of the anomalous Hall effect was significantly larger than that of magnetization, probably due to competing magnetic ordering.

Original languageEnglish
Article number014442
JournalPhysical Review B
Issue number1
Publication statusPublished - 2022 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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