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0042398699
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note
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We used C12A7 single crystals grown by the floating zone method (18) as starting material. These were sliced into 0.4-mm-thick plates and polished.
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14
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0042398700
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note
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After the Ca treatment, the inner surface of the glass tubes resembled a mirror, owing to the formation of a metal calcium layer on the glass wall. However, the surfaces of the C12A7 crystals remained transparent.
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15
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0041396510
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note
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2O in air.
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16
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0041396509
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note
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2- ions is controlled by surface reactions between a C12A7 crystal and the metallic Ca layer formed.
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17
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0024280534
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M. Lacerda, J. T. Irvine, F. P. Glasser, A. R. West, Nature 332, 525 (1988).
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18
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0036530526
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19
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0041897471
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note
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-3) that gives an absorption band peaking at 5 eV. Thus, the apparent absorption edge is shifted to ∼4 eV.
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20
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0042398698
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note
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According to a quantum-chemical calculation based on the embedded cluster model for UV-illuminated C12A7:H (21), an electron trapped in the cage is localized in the cage at the ground state, and the 0.4 and 2.8-eV bands are due to the electronic transition to an adjacent cage and s→p excitation within the cage, respectively. This result also provides a model in which the transfer of the clathrated electron is controlled by polaron associated with the 0.4-eV optical absorption band.
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21
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0041396508
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In preparation
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P. Sushko, K. Schluger, K. Hayashi, M. Hirano, H. Hosono, in preparation.
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Sushko, P.1
Schluger, K.2
Hayashi, K.3
Hirano, M.4
Hosono, H.5
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22
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0042899607
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note
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In the polaron model, the barrier height for thermal hopping to a nearest site is about four times as large as that for hopping by optical excitation. The latter is calculated to be 0.4 eV (21), and the thermal barrier height is predicted to be ∼0.16 eV.
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25
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0042398696
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note
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Fachinformationszentrum Karlsruhe and the National Institute of Standards and Technology (FIZ/NIST), Inorganic Crystal Structure Database (ICSD) 6287.
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28
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0042398697
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note
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2O was used as a spin standard reference.
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