Ground State Phases of Distorted $S=1$ Diamond Chains
| Autor: | Kazuo Hida |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Strongly Correlated Electrons (cond-mat.str-el) Statistical Mechanics (cond-mat.stat-mech) Condensed matter physics Phase (waves) FOS: Physical sciences General Physics and Astronomy Diamond engineering.material Condensed Matter::Materials Science Condensed Matter - Strongly Correlated Electrons Distortion engineering Condensed Matter::Statistical Mechanics Condensed Matter::Strongly Correlated Electrons Ground state Condensed Matter - Statistical Mechanics |
| Popis: | The ground states of distorted $S=1$ diamond chains are investigated for two types of distortion called type A and B [J. Phys. Soc. Jpn. 79 (2010) 114703]. For the type A distortion, Haldane phases with and without spontaneous translational symmetry breakdown are present for large values of parameter $\lambda$ that parametrize the strength of frustration. For small $\lambda$, the Haldane phase and two quantized ferrimagnetic phases in the undistorted chain remain stable even for strong distortion. In contrast, for the type B distortion, the quantized ferrimagnetic phases with and without spontaneous translational symmetry breakdown are present for large $\lambda$. The partial ferrimagnetic phases emerge between them. For small $\lambda$, two quantized ferrimagnetic phases remain and the partial ferrimagnetic phases also emerge between them. The Haldane phase between the two kinds of ferrimagnetic phases turns into a topologically trivial double Haldane phase for strong distortion. Comment: 8 pages, 11 figures. arXiv admin note: text overlap with arXiv:1005.5297 |
| Databáze: | OpenAIRE |
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