TY - JOUR
T1 - Inhomogeneous electronic states associated with charge-orbital order/disorder in BaV10O15 probed by photoemission spectromicroscopy
AU - Yoshino, T.
AU - Wakita, K.
AU - Paris, E.
AU - Barinov, A.
AU - Kajita, T.
AU - Katsufuji, T.
AU - Kandyba, V.
AU - Sugimoto, T.
AU - Yokoya, T.
AU - Saini, N. L.
AU - Mizokawa, T.
N1 - Funding Information:
This paper was supported by CREST-JST (Grant No. JPMJCR15Q2) and Grant-in-Aids for Scientific Research from Japan Society for the Promotion of Science (JSPS) (Grants No. 26400321 and No. 16H04020). This research was partially supported by the Program for Advancing Strategic International Networks to Accelerate the Circulation of Talented Researchers from JSPS (Grant No. R2705).
Publisher Copyright:
© 2017 American Physical Society.
PY - 2017
Y1 - 2017
N2 - We have performed scanning photoemission spectromicroscopy of BaV10O15 across the metal-insulator transition at 123 K, which is accompanied by V 3d charge/orbital order and V trimerization. Nucleation of metallic domains is observed at the cleaved surface of BaV10O15 single crystals, similar to Cr-doped V2O3 in which electronic configurations of Cr3+ and V3+ are the same as those of V2+ and V3+ in BaV10O15. Typical domain size is ~5-10 μm at 150 K, just above the transition temperature. The metallic domains continuously grow up to 240 K, well above the transition temperature. The temperature evolution of the metallic phase in BaV10O15 is different from that of Cr-doped V2O3, probably due to the charge degrees of freedom in BaV10O15
AB - We have performed scanning photoemission spectromicroscopy of BaV10O15 across the metal-insulator transition at 123 K, which is accompanied by V 3d charge/orbital order and V trimerization. Nucleation of metallic domains is observed at the cleaved surface of BaV10O15 single crystals, similar to Cr-doped V2O3 in which electronic configurations of Cr3+ and V3+ are the same as those of V2+ and V3+ in BaV10O15. Typical domain size is ~5-10 μm at 150 K, just above the transition temperature. The metallic domains continuously grow up to 240 K, well above the transition temperature. The temperature evolution of the metallic phase in BaV10O15 is different from that of Cr-doped V2O3, probably due to the charge degrees of freedom in BaV10O15
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U2 - 10.1103/PhysRevB.96.115161
DO - 10.1103/PhysRevB.96.115161
M3 - Article
AN - SCOPUS:85057722403
VL - 96
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 2469-9950
IS - 11
ER -