Creation of nanocrystals through a solid-solid phase transition induced by an STM tip

Journal Article (Journal Article)

A scanning tunneling microscope (STM) was used to fabricate T-phase tantalum diselenide (TaSe2) nanocrystals with sizes ranging from 7 to more than 100 nanometers within the surface layer of 2H-TaSe2 crystals at liquid helium temperature. Atomic-resolution images elucidate the structural changes between T- and H-phase regions and were used to develop an atomic model that describes a pathway for the production of T-phase nanocrystals from the H- phase crystal precursor through a solid-solid phase transition. The size- dependent properties of these nanocrystals may lead to improved understanding of the physics of charge density waves in small structures.

Full Text

Duke Authors

Cited Authors

  • Zhang, J; Liu, J; Huang, JL; Kim, P; Lieber, CM

Published Date

  • November 1, 1996

Published In

Volume / Issue

  • 274 / 5288

Start / End Page

  • 757 - 761

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.274.5288.757

Citation Source

  • Scopus