Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 325 (5940), 597-601

Probing Spin-Charge Separation in a Tomonaga-Luttinger Liquid

Affiliations

Probing Spin-Charge Separation in a Tomonaga-Luttinger Liquid

Y Jompol et al. Science.

Abstract

In a one-dimensional (1D) system of interacting electrons, excitations of spin and charge travel at different speeds, according to the theory of a Tomonaga-Luttinger liquid (TLL) at low energies. However, the clear observation of this spin-charge separation is an ongoing challenge experimentally. We have fabricated an electrostatically gated 1D system in which we observe spin-charge separation and also the predicted power-law suppression of tunneling into the 1D system. The spin-charge separation persists even beyond the low-energy regime where the TLL approximation should hold. TLL effects should therefore also be important in similar, but shorter, electrostatically gated wires, where interaction effects are being studied extensively worldwide.

Similar articles

See all similar articles

Cited by 11 PubMed Central articles

See all "Cited by" articles

Publication types

Feedback