Matches in SemOpenAlex for { <https://semopenalex.org/work/W4308144057> ?p ?o ?g. }
- W4308144057 abstract "Motivated by dipolar-coupled artificial spin systems, we present a theoretical study of the classical $J_1-J_2-J_3$ Ising antiferromagnet on the kagome lattice. We establish the ground-state phase diagram of this model for $J_1 > |J_2|, |J_3|$ based on exact results for the ground-state energies. When all the couplings are antiferromagnetic, the model has three macroscopically degenerate ground-state phases, and using tensor networks, we can calculate the entropies of these phases and of their boundaries very accurately. In two cases, the entropy appears to be a fraction of that of the triangular lattice Ising antiferromagnet, and we provide analytical arguments to support this observation. We also notice that, surprisingly enough, the dipolar ground state is not a ground state of the truncated model, but of the model with smaller $J_3$ interactions, an indication of a very strong competition between low-energy states in this model." @default.
- W4308144057 created "2022-11-08" @default.
- W4308144057 creator A5001154267 @default.
- W4308144057 creator A5016666918 @default.
- W4308144057 creator A5043466166 @default.
- W4308144057 creator A5065512558 @default.
- W4308144057 creator A5065903932 @default.
- W4308144057 creator A5074659127 @default.
- W4308144057 date "2022-11-02" @default.
- W4308144057 modified "2023-09-30" @default.
- W4308144057 title "Partial lifting of degeneracy in the <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>J</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mtext>−</mml:mtext><mml:msub><mml:mi>J</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mtext>−</mml:mtext><mml:msub><mml:mi>J</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math> Ising antiferromagnet on the kagome lattice" @default.
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