One-dimensional spinon spin currents

Quantum spin fluctuation in a low-dimensional or frustrated magnet breaks magnetic ordering while keeping spin correlation1. Such fluctuation has been a central topic in magnetism because of its relevance to high-Tc superconductivity2 and topological states3. However, utilizing such spin states has...

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Bibliographic Details
Published in:Nature physics 2017-01, Vol.13 (1), p.30-34
Main Authors: Hirobe, Daichi, Sato, Masahiro, Kawamata, Takayuki, Shiomi, Yuki, Uchida, Ken-ichi, Iguchi, Ryo, Koike, Yoji, Maekawa, Sadamichi, Saitoh, Eiji
Format: Article
Language:English
Subjects:
Chains
Channels
Electric current
Fluctuation
Liquids
Magnetism
Quantum physics
Spintronics
Superconductivity
Topology
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Summary:Quantum spin fluctuation in a low-dimensional or frustrated magnet breaks magnetic ordering while keeping spin correlation1. Such fluctuation has been a central topic in magnetism because of its relevance to high-Tc superconductivity2 and topological states3. However, utilizing such spin states has been quite dicult. In a one-dimensional spin-1/2 chain, a particle-like excitation called a spinon is known to be responsible for spin fluctuation in a paramagnetic state. Spinons behave as a TomonagaLuttinger liquid at low energy, and the spin system is often called a quantum spin chain4.
ISSN:1745-2473
1745-2481
DOI:10.1038/nphys3895