TY - JOUR
T1 - Field-direction control of the type of charge carriers in nonsymmorphic IrO2
AU - Uchida, M.
AU - Sano, W.
AU - Takahashi, K. S.
AU - Koretsune, T.
AU - Kozuka, Y.
AU - Arita, R.
AU - Tokura, Y.
AU - Kawasaki, M.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/6/30
Y1 - 2015/6/30
N2 - In the quest for switching of the charge carrier type in conductive materials, we focus on nonsymmorphic crystals, which are expected to have highly anisotropic folded Fermi surfaces due to symmetry requirements. Following a simple tight-binding model simulation, we prepare nonsymmorphic IrO2 single-crystalline films with various growth orientations by molecular beam epitaxy, and systematically quantify their Hall effect for the corresponding field directions. The results clearly demonstrate that the dominant carrier type can be intrinsically controlled by the magnetic field direction, as also evidenced by first-principles calculations revealing nontrivial momentum dependence of the group velocity and mass tensor on the folded Fermi surfaces and its anisotropic nature for the field direction.
AB - In the quest for switching of the charge carrier type in conductive materials, we focus on nonsymmorphic crystals, which are expected to have highly anisotropic folded Fermi surfaces due to symmetry requirements. Following a simple tight-binding model simulation, we prepare nonsymmorphic IrO2 single-crystalline films with various growth orientations by molecular beam epitaxy, and systematically quantify their Hall effect for the corresponding field directions. The results clearly demonstrate that the dominant carrier type can be intrinsically controlled by the magnetic field direction, as also evidenced by first-principles calculations revealing nontrivial momentum dependence of the group velocity and mass tensor on the folded Fermi surfaces and its anisotropic nature for the field direction.
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U2 - 10.1103/PhysRevB.91.241119
DO - 10.1103/PhysRevB.91.241119
M3 - Article
AN - SCOPUS:84936817613
VL - 91
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 24
M1 - 241119
ER -