TY - JOUR
T1 - Efficient photocarrier injection to transition metal oxides
AU - Muraoka, Y.
AU - Yamauchi, T.
AU - Muramatsu, T.
AU - Yamaura, J.
AU - Hiroi, Z.
N1 - Funding Information:
We thank Y. Ueda for helpful discussion. This work was supported by Grants-in-Aid for Scientific Research on Priority Areas (A) and Creative Scientific Research provided by the Ministry of Education, Culture, Sports, Science and Technology, Japan.
PY - 2004/5
Y1 - 2004/5
N2 - We have fabricated transition metal oxide (TMO) films on n-type titanium oxide substrates, and measured in-plane resistance under ultraviolet light irradiation. A dramatic decrease in the resistance and enhancement of the superconducting critical temperature are observed for VO2/TiO 2:Nb and YBa2Cu3Oz/SrTiO 3:Nb, respectively. Out-of-plane voltage measurements under light irradiation indicate hole-carrier injection from the substrate to the film in both the cases. The present photocarrier injection technique could apply to many TMOs to control the hole carrier density externally.
AB - We have fabricated transition metal oxide (TMO) films on n-type titanium oxide substrates, and measured in-plane resistance under ultraviolet light irradiation. A dramatic decrease in the resistance and enhancement of the superconducting critical temperature are observed for VO2/TiO 2:Nb and YBa2Cu3Oz/SrTiO 3:Nb, respectively. Out-of-plane voltage measurements under light irradiation indicate hole-carrier injection from the substrate to the film in both the cases. The present photocarrier injection technique could apply to many TMOs to control the hole carrier density externally.
KW - Heterostructurc
KW - Photocarrier injection
KW - Transition metal oxides
KW - VO
KW - YBaCuO
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U2 - 10.1016/j.jmmm.2003.12.1290
DO - 10.1016/j.jmmm.2003.12.1290
M3 - Article
AN - SCOPUS:8444237531
VL - 272-276
SP - 448
EP - 449
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - I
ER -