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Emergent incommensurate correlations in frustrated ferromagnetic spin-1 chains

Title
Emergent incommensurate correlations in frustrated ferromagnetic spin-1 chains
Authors
Lee, Hyeong JunChoi, MooYoungJeon, Gun Sang
Ewha Authors
전건상
SCOPUS Author ID
전건상scopus
Issue Date
2017
Journal Title
PHYSICAL REVIEW B
ISSN
2469-9950JCR Link2469-9969JCR Link
Citation
vol. 95, no. 2
Publisher
AMER PHYSICAL SOC
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We study frustrated ferromagnetic spin-1 chains, where the ferromagnetic nearest-neighbor coupling competes with the antiferromagnetic next-nearest-neighbor coupling. We use the density-matrix renormalization group to obtain the ground states. Through the analysis of spin-spin correlations we identify the double Haldane phase as well as the ferromagnetic phase. It is shown that the ferromagnetic coupling leads to incommensurate correlations in the double Haldane phase. Such short-range correlations transform continuously into the ferromagnetic instability at the transition to the ferromagnetic phase. We also compare the results with the spin-1/2 and classical spin systems and discuss the string orders in the system.
DOI
10.1103/PhysRevB.95.024424
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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