Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Açık Bilim Politikası
Açık Bilim Politikası
Frequently Asked Questions
Frequently Asked Questions
Browse
Browse
By Issue Date
By Issue Date
Authors
Authors
Titles
Titles
Subjects
Subjects
Communities & Collections
Communities & Collections
The ground state spin ordering and lowest energy excitations of a model organic ferrimagnet-polyallyl spin chain
Date
2001-01-01
Author
Cheranovskii, VO
Özkan, İlker
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
2
views
0
downloads
We studied zero-temperature magnetic ordering in a model organic ferrimagnet-polyallyl spin-1/2 chain as a function of the exchange integral lambda describing the interaction between spins of radical centers and the main chain. Exact diagonalization and density matrix renormalization group (DMRG) methods demonstrated that for small applied fields, the difference in zero-temperature magnetizations of the sublattices reaches a maximum value at lambda = 0.70. It was shown that there is a critical value of magnetic field above which this ferrimagnetic ordering is destroyed. We also present the results of DMRG calculations that showed the gap character of excitations without decrease of the total spin for lambda greater than or equal to 0.4.
Subject Keywords
Organic ferrimagnet
,
Spin ordering
URI
https://hdl.handle.net/11511/31131
Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
DOI
https://doi.org/10.1016/s0304-8853(00)00718-6
Collections
Graduate School of Natural and Applied Sciences, Article