Article (Scientific journals)
Phase diagram of spin-1 chains with Dzyaloshinskii-Moriya interaction
Tschirhart, Hugo; Ong, Ernest; Sengupta, Pinaki et al.
2019In Physical Review. B, 100, p. 195111
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Abstract :
[en] We investigate an antiferromagnetic spin-1 Heisenberg chain in the presence of Dyzaloshinskii-Moriya interactions (DMI) and an external magnetic field. We study the resulting spin chain using a combination of numerical and analytical techniques. Using DMRG simulations to determine the spectral gap and the entanglement spectrum, we map out the phase diagram as a function of magnetic field strength and DMI strength. We provide a qualitative interpretation for these numerical findings by mapping the spin-1 chain on a spin-1/2 ladder and using a bosonization approach.
Disciplines :
Physics
Author, co-author :
Tschirhart, Hugo
Ong, Ernest
Sengupta, Pinaki
Schmidt, Thomas ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
yes
Language :
English
Title :
Phase diagram of spin-1 chains with Dzyaloshinskii-Moriya interaction
Publication date :
2019
Journal title :
Physical Review. B
ISSN :
2469-9969
Publisher :
American Physical Society
Volume :
100
Pages :
195111
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 21 January 2020

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