[8a-Z07-1~8] 6.3 Oxide electronics

△ [8a-Z07-4] Low temperature properties of Kondo lattice PrO epitaxial thin films

〇Hirokazu Shimizu¹, Nobuto Abe¹, Taku Yamamoto¹, Daichi Saito¹, Kenichi Kaminaga^2,3, Daichi Oka¹, Noriaki Kimura¹, Tomoteru Fukumura^1,3,4,5 (1.Tohoku Univ., 2.Tohoku Univ. Sch. Eng., 3.Tohoku Univ. AIMR & CRC, 4.Tohoku Univ. CSIS, 5.Tohoku Univ. CSRN)

Keywords:Rare earth monoxide, Kondo lattice, Pulsed laser deposition

We have synthesized PrO epitaxial thin films using the pulsed laser deposition method and evaluated the electrical and magnetic properties at the ultra-low temperatures where the Kondo effect becomes remarkable. PrO showed the Kondo effect below 6 K where the electrical resistivity becomes the minimum. At 10 K and above, the behaviors of magnetization and the anomalous Hall resistivity were corresponding with each other, but in the ultra-low temperatures, the anomalous Hall resistivity showed large residual components and coercive fields in contrast to the magnetization. This is considered to indicate the rearrangement of magnetization due to the competition of magnetic interactions.