Titre :

Cu3Te2O5(OH)(4): A Frustrated Two-Dimensional Quantum \"Magnetic Raft\" as a Possible Pathway to a Spin Liquid

Auteur(s) :

Zhu, T. Y. [Auteur]
Zhu, B. [Auteur]
Mentre, Olivier [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lee, S. [Auteur]
Chen, D. [Auteur]
Jin, Y. L. [Auteur]
Zhu, W. X. [Auteur]
Arevalo Lopez, Angel [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Minaud, Claire [Auteur]
Choi, K. Y. [Auteur]
Lu, M. F. [Auteur]

Titre de la revue :

Chemistry of Materials

Nom court de la revue :

Chem. Mat.

Numéro :

35

Pagination :

p. 3951–3959

Date de publication :

2023-05-04

ISSN :

0897-4756

Discipline(s) HAL :

Chimie/Matériaux

Résumé en anglais : [en]

We report a combined experimental and theoretical study of the hitherto unknown compound Cu3Te2O5(OH)4 that comprises an original network of ferromagnetic (FM; J1 = −100 K with strong next-nearest neighbor exchanges JNNN ...
Lire la suite >We report a combined experimental and theoretical study of the hitherto unknown compound Cu3Te2O5(OH)4 that comprises an original network of ferromagnetic (FM; J1 = −100 K with strong next-nearest neighbor exchanges JNNN = 50 K) chains and alternating antiferromagnetic (AFM; J2 ∼ 148 K, and J2′ ∼ 125 K) chains arranged in a so-called S = 1/2 two-dimensional “magnetic raft” spin–lattice. The two one-dimensional spin sublattices are interconnected by weaker exchanges (Jd ∼ 40 K), which create tetrahedral Cu4 knots between the cross-linked “raft” legs, bringing about strong magnetic frustration. The magnetic susceptibility and specific heat show the absence of magnetic ordering down to 1.8 K hampered by fully frustrated Cu1 spins. High-field magnetization reveals a one-third magnetization plateau that is stable up to 33 T, which conveys the fingerprint of the individual AFM and FM chains. Magnetic entropy shows a two-stage Schottky-like release, implying the thermal decoupling of magnetic sublattices. Our work establishes that Cu3Te2O5(OH)4 can serve as a prominent platform for discovering sought-after quantum spin liquids in chemistry and physics.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Date de dépôt :

2023-11-14T01:04:18Z
2023-11-25T20:34:25Z
2024-04-23T12:05:11Z