Artículo
Magnetization Process of Atacamite: A Case of Weakly Coupled S=1 /2 Sawtooth Chains
Heinze, L.; Jeschke, H. O.; Mazin, I. I.; Metavitsiadis, A.; Reehuis, M.; Feyerherm, R.; Hoffmann, J. U.; Bartkowiak, M.; Prokhnenko, O.; Wolter, A. U. B.; Ding, X.; Zapf, V. S.; Corvalán Moya, Carolina del Huerto
; Weickert, F.; Jaime, M.; Rule, K. C.; Menzel, D.; Valentí, R.; Brenig, W.; Süllow, S.
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Fecha de publicación:
05/2021
Editorial:
American Physical Society
Revista:
Physical Review Letters
ISSN:
0031-9007
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present a combined experimental and theoretical study of the mineral atacamite Cu2Cl(OH)3. Density-functional theory yields a Hamiltonian describing anisotropic sawtooth chains with weak 3D connections. Experimentally, we fully characterize the antiferromagnetically ordered state. Magnetic order shows a complex evolution with the magnetic field, while, starting at 31.5 T, we observe a plateaulike magnetization at about Msat/2. Based on complementary theoretical approaches, we show that the latter is unrelated to the known magnetization plateau of a sawtooth chain. Instead, we provide evidence that the magnetization process in atacamite is a field-driven canting of a 3D network of weakly coupled sawtooth chains that form giant moments.
Palabras clave:
ATACAMITE
,
MAGNETIZATION
,
ANTIFERROMAGNETISM
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Heinze, L.; Jeschke, H. O.; Mazin, I. I.; Metavitsiadis, A.; Reehuis, M.; et al.; Magnetization Process of Atacamite: A Case of Weakly Coupled S=1 /2 Sawtooth Chains; American Physical Society; Physical Review Letters; 126; 20; 5-2021; 1-7
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