Field-concentration phase diagram of a quantum spin liquid with bond defects

Article

关键词: BOSE-EINSTEIN CONDENSATION;    LOCALIZATION;    TLCUCL3;    GAP;   

DOI  :  10.1103/PhysRevB.88.094402

来源: SCIE

【 摘 要 】

The magnetic susceptibility of the gapped quantum spin liquid compound (C4H12N2)Cu2Cl6 and its chemically disordered derivatives (C4H12N2)Cu-2(Cl1-xBrx)(6) are systematically studied in magnetic fields of up to 45 T, as a function of Br concentration. The corresponding field-temperature and field-concentration phase diagrams are determined. Measurements on the disorder-free parent compound are not fully consistent with previously published results by other authors. The effect of Br/Cl substitution on the magnetic properties is superficially similar to that of finite temperature. However, important differences are identified and discussed with reference to the previously studied magnetic excitation spectra.

【 授权许可】

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