A Short Review of One-Dimensional Wigner Crystallization

Crystals

Maura Sassetti¹  Fabio Cavaliere¹  NiccoloTraverso Ziani¹  KarinaGuerrero Becerra² 

[1]Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, 16146 Genova, Italy

[2]Graphene Labs, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy

关键词: wigner crystal;    bosonization;    luttinger liquid;   

DOI  :  10.3390/cryst11010020

来源: DOAJ

【 摘 要 】

The simplest possible structural transition that an electronic system can undergo is Wigner crystallization. The aim of this short review is to discuss the main aspects of three recent experimets on the one-dimensional Wigner molecule, starting from scratch. To achieve this task, the Luttinger liquid theory of weakly and strongly interacting fermions is briefly addressed, together with the basic properties of carbon nanotubes that are required. Then, the most relevant properties of Wigner molecules are addressed, and finally the experiments are described. The main physical points that are addressed are the suppression of the energy scales related to the spin and isospin sectors of the Hamiltonian, and the peculiar structure that the electron density acquires in the Wigner molecule regime.

【 授权许可】

Unknown