English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the slave-boson t-J model of cuprates with high superconducting transition temperatures, and derive its low-energy effective field theory for the charge-spin separated state in a self-consistent manner. The phase degrees of freedom of the mean field for hoppings of holons and spinons can be regarded as a U~1! gauge field, Ai . The charge-spin separation occurs below a certain temperature, TCSS , as a deconfinement phenomenon of the dynamics of Ai . Below a certain temperature TSG (,TCSS), the spin-gap phase develops as the Higgs phase of the gauge-field dynamics, and Ai acquires a mass mA . The effective field theory near TSG takes the form of a Ginzburg-Landau theory of a complex scalar field l coupled with Ai , where l represents d-wave pairings of spinons. Three dimensionality of the system is crucial to realize a phase transition at TSG . By using this field theory, we calculate the dc resistivity r. At T.TSG , r is proportional to T. At T,TSG , it deviates downward from the T-linear behavior as r}T$12c(TSG2T)d%.. When the system is near ~but not! two dimensional, due to the compactness of the phase of the field l, the exponent d deviates from its mean-field value 1/2 and becomes a nonuniversal quantity which depends on temperature and doping. This significantly improves the comparison with the experimental data

physical review. b, condensed matter

Effective gauge-field theory of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>t</mml:mi><mml:mo>−</mml:mo><mml:mi>J</mml:mi></mml:math>model in the charge-spin separated state and its transport properties

Effective gauge-field theory of thet−Jmodel in the charge-spin separated state and its transport properties