Asymmetric response of electrical conductivity and V valence state to strain in cation-deficient Sr1–yVO3 ultrathin films based on absorption measurements at the V L2- and L3-edges

Wu, M.; Huang, S.-Z.; Zeng, H.; Koster, G.; Huang, Y.-Y.; Zheng, J.-C.; Wang, H.-Q.

doi:10.1107/S1600577519007094

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Figure 4
(a)–(b) Temperature-dependent resistivity curves for Sr_1–yVO₃ thin films of 26 u.c. on STO, 26 u.c. on LAO and 10 u.c. on STO substrates. The black lines in panel (a) show the fit with ρ ∝ T² and those in panel (b) exhibit the fit with the small polaronic conduction model. (c) The ρ–T relationship for compressively strained Sr_1–yVO₃ films on LSAO. (d) The metal–insulator transition of 5 u.c. Sr_1–yVO₃ on an STO substrate.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 26| Part 5| September 2019| Pages 1687-1693

https://doi.org/10.1107/S1600577519007094

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