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Novel carrier in the charge density waves of o-TaS_3 | | Katsuhiko Inagaki
; Masakatsu Tsubota
; Satoshi Tanda
; | | Date: |
1 Dec 2009 | | Abstract: | We studied a nonlocal transport of quasi-one dimensional conductor
$o$-TaS$_3$. Electric transport phenomena in charge density wave include
thermally-excited quasiparticles, and collective motion of charge density wave
(CDW). In spite of its long-range correlation, the collective motion of CDW is
hardly exceeded beyond the electrodes, where phase slippage breaks the
correlation. We found nonlocal voltages appeared in CDW of $o$-TaS$_3$, both
below and above the threshold field of CDW sliding. The temperature dependence
of the nonlocal voltage suggests that the observed nonlocal voltage is
originated from CDW even below the threshold fields. Moreover, our observation
of nonlocal voltage both in the pinned and the sliding states provides
existence of a novel kind of electric transport, in addition to sliding CDW and
thermally-excited quasiparticles. | | Source: | arXiv, 0912.0080 | | Services: | Forum | Review | PDF | Favorites | |
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