Pressure-induced quantum phase transition in the quantum antiferromagnet CsFeCl3

Article

关键词: GAP SYSTEM TLCUCL3;    HIGH-TEMPERATURE SUPERCONDUCTIVITY;    BOSE-EINSTEIN CONDENSATION;    MAGNETIC-STRUCTURES;    CRITICALITY;    SCATTERING;    PHYSICS;    XY;   

DOI  :  10.1103/PhysRevB.97.140405

来源: SCIE

【 摘 要 】

We have studied the pressure-induced quantum phase transition in the singlet-ground-state antiferromagnet CsFeCl3. Neutron diffraction experiments under pressure evidence the magnetic long-range order at low temperatures. Magnetic structure analysis reveals a 120 degrees structure with a propagation vector of k(mag) = (1/3,1/3,0). The estimated critical exponent of the order parameter suggests that CsFeCl3 belongs to the universality class of U(1) x Z(2) symmetry which is expected to realize the chiral liquid state.

【 授权许可】

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