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. 2017 Feb 10;8:14468. doi: 10.1038/ncomms14468

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Copyright © 2017, The Author(s)

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(a,c) Energy–momentum intensity map of STO(001) and STO(110) with similar main bands and replica bands. The separation of two bands is estimated to be ∼100 meV in both surfaces (b,d) Second energy derivative of a,c. (e) EDCs of STO(110) shown as a waterfall plot with main and replica bands marked by red squares. (f) EDCs of STO(001) and STO(110) measured at k_F, showing the similar ∼100 meV energy separation between the main and replica bands.