Nano-fabrication of CDW and its negative resistance phenomenon

H. Kubota, T. Sumita, S. Takami, T. Shinada, I. Ohdomari

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Nano-fabrication of CDW (nano-CDW) with sub 0.1 micrometer thick has been successfully formed by applying of focused-ion-beam to the one-dimensional conductor, molybdenum blue bronze (K0.3MoO3) crystal. The nano-CDW characteristically shows negative resistance above the threshold fields, which monotonously increased with decreasing temperature. The nano-fabrication is completed via two steps procedure. 1st: Hydrogen ion beam irradiation to the K0.3MoO3 crystal makes no-CDW layer by hydrogen atoms as excess-donar at 40-100 nm depth, where CDW at the surface of the crystal was isolated from the bulk side. 2nd: Scanning focused silicon ion beam makes amorphous MoO3 in line and space patterns, where CDW at the surface are isolated as real one-dimensional region. The one-dimensionality of electrons has been confirmed by negative magnetic resistance, which magnitude should be reduced with decreasing dimensionality.

Original languageEnglish
Pages (from-to)Pr10-175-Pr10-177
JournalJournal De Physique. IV : JP
Issue number10
Publication statusPublished - 1999
EventProceedings of the 1999 International Workshop on ELectronic Crystals (ECRYS-99) - La Colle-sur-Loup, France
Duration: 1999 May 311999 Jun 5


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