TY - JOUR
T1 - Rocksalt-type PrO epitaxial thin film as a weak ferromagnetic Kondo lattice
AU - Shimizu, Hirokazu
AU - Oka, Daichi
AU - Kaminaga, Kenichi
AU - Saito, Daichi
AU - Yamamoto, Taku
AU - Abe, Nobuto
AU - Kimura, Noriaki
AU - Shiga, Daisuke
AU - Kumigashira, Hiroshi
AU - Fukumura, Tomoteru
N1 - Funding Information:
We would like to thank Professor N. Shibata and Professor T. Koretsune of Tohoku University for fruitful comments. The HAXPES experiments were performed at BL47XU (Proposal No. 2019B2148). This work was in part supported by JSPS-KAKENHI (Grants No. 18H03872, No. 18K18935, No. 19K15440, No. 20H02704, No. 21H05008) and the Mitsubishi Foundation.
Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.105.014442
DO - 10.1103/PhysRevB.105.014442
M3 - Article
AN - SCOPUS:85124201286
SN - 2469-9950
VL - 105
JO - Physical Review B
JF - Physical Review B
IS - 1
M1 - 014442
ER -