Evidence for Helical Nuclear Spin Order in GaAs Quantum Wires

Abstract

We present transport measurements of cleaved edge overgrowth GaAs quantum wires. The conductance of the first mode reaches 2 e^2/h at high temperatures T > 10 K, as expected. As T is lowered, the conductance is gradually reduced to 1 e^2/h, becoming T-independent at T < 0.1 K, while the device cools far below 0.1 K. This behavior is seen in several wires, is independent of density, and not altered by moderate magnetic fields B. The conductance reduction by a factor of two suggests lifting of the electron spin degeneracy in absence of B. Our results are consistent with theoretical predictions for helical nuclear magnetism in the Luttinger liquid regime.

5 pages, 4 figures (color)

References in corpus (18)

• Luttinger Liquid Behavior in Carbon Nanotubes
• Possible Spin Polarization in a One-Dimensional Electron Gas
• Landauer Conductance of Luttinger Liquids with Leads
• Transport in an inhomogeneous interacting one--dimensional system
• Spin-charge separation and localization in one-dimension
• Is there a renormalization of the 1D conductance in Luttinger Liquid model?
• Dynamics of Inhomogeneous Tomonaga-Luttinger Liquid Wire
• Spin-selective Peierls transition in interacting one-dimensional conductors with spin-orbit interaction
• Experimental Evidence for Resonant-Tunneling in a Luttinger-Liquid
• Conductance of a quantum wire in the Wigner crystal regime
• Conductance of a quantum wire at low electron density
• Nuclear magnetism and electron order in interacting one-dimensional conductors
• Nuclear Magnetism and Electronic Order in 13C Nanotubes
• Transport through Dirty Luttinger Liquids Connected to Reservoirs
• DC--Transport in Quantum Wires
• Interference and zero-bias anomaly in tunneling between Luttinger-liquid wires
• Metallic Coulomb Blockade Thermometry down to 10 mK and below
• Helical nuclear spin order in two-subband quantum wires

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