Transition from one-dimensional antiferromagnetism to three-dimensional antiferromagnetic order in single-crystalline CuSb2O6

Article

关键词: SPIN-PEIERLS TRANSITION;    MAGNETIC ORDER;    RANGE;    CHAINS;    STATE;   

DOI  :  10.1103/PhysRevB.87.224427

来源: SCIE

【 摘 要 】

Measurements of magnetic susceptibility, heat capacity, and thermal expansion are reported for single-crystalline CuSb2O6 in the temperature range 5 < T < 350 K. The magnetic susceptibility exhibits a broad peak centered near 60 K that is typical of one-dimensional antiferromagnetic compounds. Long-range antiferromagnetic order at T-N = 8.7 K is accompanied by an energy gap [Delta = 17.48(6) K]. This transition represents a crossover from one- to three-dimensional antiferromagnetic behavior. Both heat capacity and the thermal expansion coefficients exhibit distinct jumps at TN, which are similar to those observed at the normal-superconducting phase transition in a superconductor. This behavior is quite unusual and is presumably associated with a spin-Peierls transition occurring as a result of three-dimensional phonons coupling with Jordan-Wigner-transformed fermions.

【 授权许可】

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