Investigation of Linear and Alternating Quasi-one-dimensional Spin Chains in Hambergite Single Crystal by Means of 1H NMRстатья
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Дата последнего поиска статьи во внешних источниках: 18 мая 2022 г.
Аннотация:1H NMR in quasi-one-dimensional spin chains is investigated experimentally onthe single crystal of hambergite, Be2BO3OH. The orientations at which the changeof the spin chain direction with respect to the external magnetic field results in theoccurrence of homogeneous and alternating chains are found. The dependence of thelineshape on the orientation in magnetic field for alternating spin chain is obtainedand the data are analyzed using a simple model taking into the dipolar interactionswith the nearest neighbors. The analogies with the lineshapes typical for spin sys-tems with a small number of spin and known linear spin chain are discussed.