scholarly journals Detecting spin fractionalization in a spinon Fermi surface spin liquid

2017 ◽  
Vol 96 (7) ◽  
Author(s):  
Yao-Dong Li ◽  
Gang Chen
Keyword(s):  
Fermi Surface ◽  
Spin Liquid ◽  
Surface Spin

scholarly journals Spinon Fermi Surface Spin Liquid in a Triangular Lattice Antiferromagnet NaYbSe2

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Peng-Ling Dai ◽  
Gaoning Zhang ◽  
Yaofeng Xie ◽  
Chunruo Duan ◽  
Yonghao Gao ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Triangular Lattice ◽  
Spin Liquid ◽  
Surface Spin ◽  
Triangular Lattice Antiferromagnet

scholarly journals Field-Induced Instability of a Gapless Spin Liquid with a Spinon Fermi Surface

2017 ◽  
Vol 119 (13) ◽  
Author(s):  
M. Gomilšek ◽  
M. Klanjšek ◽  
R. Žitko ◽  
M. Pregelj ◽  
F. Bert ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Spin Liquid

scholarly journals Magnetic field-induced intermediate quantum spin liquid with a spinon Fermi surface

2019 ◽  
Vol 116 (25) ◽  
pp. 12199-12203 ◽  
Author(s):  
Niravkumar D. Patel ◽  
Nandini Trivedi
Keyword(s):  
Magnetic Field ◽  
Fermi Surface ◽  
Intermediate Phase ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Spin Correlations ◽  
Density Matrix Renormalization ◽  
Static Spin ◽  
Kitaev Model ◽  
Quantum Spin Liquid

The Kitaev model with an applied magnetic field in the H∥[111] direction shows two transitions: from a nonabelian gapped quantum spin liquid (QSL) to a gapless QSL at Hc1≃0.2K and a second transition at a higher field Hc2≃0.35K to a gapped partially polarized phase, where K is the strength of the Kitaev exchange interaction. We identify the intermediate phase to be a gapless U(1) QSL and determine the spin structure function S(k) and the Fermi surface ϵFS(k) of the gapless spinons using the density matrix renormalization group (DMRG) method for large honeycomb clusters. Further calculations of static spin-spin correlations, magnetization, spin susceptibility, and finite temperature-specific heat and entropy corroborate the gapped and gapless nature of the different field-dependent phases. In the intermediate phase, the spin-spin correlations decay as a power law with distance, indicative of a gapless phase.

scholarly journals Evidence for a spinon Fermi surface in the triangular S=1 quantum spin liquid Ba3NiSb2O9

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
B. Fåk ◽  
S. Bieri ◽  
E. Canévet ◽  
L. Messio ◽  
C. Payen ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Quantum Spin Liquid
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