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Observation of a 1/3 magnetization plateau in Pb2Cu10O4(SeO3)4Cl7 arising from (Cu2+)7 clusters of corner-sharing (Cu2+)4 tetrahedra.
Vasiliev, A N; Berdonosov, P S; Kozlyakova, E S; Maximova, O V; Murtazoev, A F; Dolgikh, V A; Lyssenko, K A; Pchelkina, Z V; Gorbunov, D I; Chung, S H; Koo, H-J; Whangbo, M-H.
Afiliación
  • Vasiliev AN; Lomonosov Moscow State University, Moscow 119991, Russia. vasil@lt.phys.msu.ru.
  • Berdonosov PS; National University of Science and Technology "MISiS", Moscow 119049, Russia.
  • Kozlyakova ES; Lomonosov Moscow State University, Moscow 119991, Russia. vasil@lt.phys.msu.ru.
  • Maximova OV; National University of Science and Technology "MISiS", Moscow 119049, Russia.
  • Murtazoev AF; Lomonosov Moscow State University, Moscow 119991, Russia. vasil@lt.phys.msu.ru.
  • Dolgikh VA; National University of Science and Technology "MISiS", Moscow 119049, Russia.
  • Lyssenko KA; Lomonosov Moscow State University, Moscow 119991, Russia. vasil@lt.phys.msu.ru.
  • Pchelkina ZV; Lomonosov Moscow State University, Moscow 119991, Russia. vasil@lt.phys.msu.ru.
  • Gorbunov DI; Lomonosov Moscow State University, Moscow 119991, Russia. vasil@lt.phys.msu.ru.
  • Chung SH; Lomonosov Moscow State University, Moscow 119991, Russia. vasil@lt.phys.msu.ru.
  • Koo HJ; Ural Federal University, Ekaterinburg 620002, Russia.
  • Whangbo MH; Institute of Metal Physics, RAS, Ekaterinburg 620108, Russia.
Dalton Trans ; 51(39): 15017-15021, 2022 Oct 11.
Article en En | MEDLINE | ID: mdl-36112086
A mixed-valence compound Pb2Cu10O4(SeO3)4Cl7 has a complex structure consisting of one nonmagnetic Cu+ (S = 0) ion and four nonequivalent magnetic Cu2+ (S = 1/2) ions. It exhibits antiferromagnetic ordering at TN = 10.2 K. At a temperature below TN, a sequence of spin-flop transition at Bspin-flop = 1.3 T and 1/3 plateau formation at Bspin-flip = 4.4 K is observed in the magnetization curve M(B). The 1/3 magnetization plateau persists at least up to 53.5 T. The spin exchanges of Pb2Cu10O4(SeO3)4Cl7 evaluated by performing energy-mapping analysis based on DFT+U calculations show that the magnetic properties of Pb2Cu10O4(SeO3)4Cl7 are described by the (Cu2+)7 cluster of corner-sharing (Cu2+)4 tetrahedra, and that each (Cu2+)7 cluster has a S = 3/2 spin arrangement in the ground state. The 1/3 magnetization plateau observed for Pb2Cu10O4(SeO3)4Cl7 is explained by the field-induced flip of every second (Cu2+)7 cluster within a unit cell.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Dalton Trans Asunto de la revista: QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Reino Unido
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Dalton Trans Asunto de la revista: QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Reino Unido