TY - JOUR
T1 - Anomalous Hall effect at the spontaneously electron-doped polar surface of PdCo O2 ultrathin films
AU - Harada, T.
AU - Sugawara, K.
AU - Fujiwara, K.
AU - Kitamura, M.
AU - Ito, S.
AU - Nojima, T.
AU - Horiba, K.
AU - Kumigashira, H.
AU - Takahashi, T.
AU - Sato, T.
AU - Tsukazaki, A.
N1 - Publisher Copyright:
© 2020 authors. Published by the American Physical Society.
PY - 2020/3
Y1 - 2020/3
N2 - We revealed the electrical transport through surface ferromagnetic states of a nonmagnetic metal PdCoO2. Electronic reconstruction at the Pd-terminated surface of PdCoO2 induces Stoner-like ferromagnetic states, which could lead to spin-related phenomena among the highly conducting electrons in PdCoO2. Fabricating a series of nanometer-thick PdCoO2 thin films, we detected a surface-magnetization-driven anomalous Hall effect via systematic thickness- A nd termination-dependent measurements. Besides, we discuss that finite magnetic moments in electron doped CoO2 triangular lattices may have given rise to additional unconventional Hall resistance.
AB - We revealed the electrical transport through surface ferromagnetic states of a nonmagnetic metal PdCoO2. Electronic reconstruction at the Pd-terminated surface of PdCoO2 induces Stoner-like ferromagnetic states, which could lead to spin-related phenomena among the highly conducting electrons in PdCoO2. Fabricating a series of nanometer-thick PdCoO2 thin films, we detected a surface-magnetization-driven anomalous Hall effect via systematic thickness- A nd termination-dependent measurements. Besides, we discuss that finite magnetic moments in electron doped CoO2 triangular lattices may have given rise to additional unconventional Hall resistance.
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U2 - 10.1103/PhysRevResearch.2.013282
DO - 10.1103/PhysRevResearch.2.013282
M3 - Article
AN - SCOPUS:85095260653
SN - 2643-1564
VL - 2
JO - Physical Review Research
JF - Physical Review Research
IS - 1
M1 - 013282
ER -