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lab:research:mosi [2014/12/31 12:12] seoung-hun_kang |
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==== MoSI nanowires ==== | ==== MoSI nanowires ==== | ||
- | {{ :lab:research:mosi.gif|MoSI nanowires}} | + | {{ :lab:research:mosi.gif?400|MoSI nanowires}} |
Mo<sub>6</sub>S<sub>9-//x//</sub>I<sub>//x//</sub> nanowires exhibit | Mo<sub>6</sub>S<sub>9-//x//</sub>I<sub>//x//</sub> nanowires exhibit | ||
interesting structural and electronic properties due to the flexible S | interesting structural and electronic properties due to the flexible S | ||
Line 6: | Line 6: | ||
have investigated the structrual and electronic properties of isolated | have investigated the structrual and electronic properties of isolated | ||
and bundled Mo<sub>6</sub>S<sub>9-//x//</sub>I<sub>//x//</sub> | and bundled Mo<sub>6</sub>S<sub>9-//x//</sub>I<sub>//x//</sub> | ||
- | nanowires. blah blah | + | nanowires. We find the optimum interwire distance depends on |
+ | composition and to a smaller degree on the orientation of the wires. | ||
+ | Structural order is expected in bundles with x=0 and x=6, | ||
+ | since there is no disorder in the decoration of the Mo clusters. | ||
+ | In bundles with other stoichiometries we expect structural disorder to occur. | ||
+ | We find that the electronic structure of some nanowires can be switched | ||
+ | from metallic to semiconducting by changing the interwire separation. | ||
+ | Also, we find that selected stable or metastable nanowire geometries exhibit | ||
+ | ferromagnetic behavior. | ||
+ | The most intriguing changes occur in nanowires with x=4.5 and 6, | ||
+ | which change from metal to semiconductor or undergo a magnetic transition | ||
+ | upon axially stretching or compressing the nanowires or upon changing | ||
+ | the inter-wire separation. | ||
{{page>:lab:publications:2010:kang2010&nofooter&noeditbtn}} | {{page>:lab:publications:2010:kang2010&nofooter&noeditbtn}} | ||
{{page>:lab:publications:2010:kang2010a&nofooter&noeditbtn}} | {{page>:lab:publications:2010:kang2010a&nofooter&noeditbtn}} | ||