Fig. 5 | Nature Communications

Fig. 5

From: Theory of the field-revealed Kitaev spin liquid

Fig. 5

Evolving correlations in a magnetic field. With Γ/K = −0.325 and Γ′ = −0.1, quantities computed in the two-leg honeycomb strip with DMRG are plotted as a function of a 5° field for system sizes N = 100, 200, 300, 400 and infinite DMRG (iDMRG) as solid red line. a χh displays two peaks which sharpen with increasing system size. These transitions separate ZZ magnetic order and the PS from the intervening KSL. b Plaquette–plaquette correlations \(\left\langle {W_pW_{p\prime }} \right\rangle\) are small within the ZZ and polarized phases, and become appreciable within the KSL. c Conversely, the xx spin–spin correlations 〈SxSx〉 are small within the KSL and large in the magnetically ordered phases. d Sharp changes in the zz spin–spin correlations are seen across the phase boundaries, and display a finite value consistent with a KSL in field. Spin and plaquette correlations are evaluated at the largest separation accessible in each cluster

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