Quantum spin chains with frustration due to Dzyaloshinskii-Moriya interactions
Quantum spin chains with frustration due to Dzyaloshinskii-Moriya interactions
Hälg, M.; Lorenz, W. E. A.; Povarov, K. Y.; Mansson, M.; Skourski, Y.; Zheludev, A.
The properties of two quantum spin chain materials, K2CuSO4Cl2 and K2CuSO42, are studied by a variety of experimental techniques, including bulk measurements, neutron spectroscopy, and electron spin resonance. The hierarchy of relevant terms in the magnetic Hamiltonian is established. It is shown that these two compounds feature substantial Dzyaloshinskii-Moriya interactions that are uniform within each chain, but antiparallel in adjacent chains. The result is a peculiar type of frustration of interchain interactions, which leads to an unusual fielderature phase diagram.
Involved research facilities
- High Magnetic Field Laboratory (HLD)
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Physical Review B 90(2014), 174413
DOI: 10.1103/PhysRevB.90.174413
ISSN: 1098-0121
Cited 33 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-21284