| http://www.w3.org/ns/prov#value | - A nanowhisker comprising: a column with a diameter of nanometer dimension, the column including along its length at least first and second lengthwise segments of different crystalline materials, the first segment having a stoichiometric composition of the form A1???xBxC, and the second segment having a stoichiometric composition of the form A1???yByC, where A, B and C are selected elements, and x
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