Indra A, Dey K, Bhattacharyya A, Berlie A, Giri S
School of Physical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India. Department of Physics, Srikrishna College, Bagula, Nadia, W. B., 741502, India.
J Phys Condens Matter. 2019 Apr 24;31(16):165801. doi: 10.1088/1361-648X/ab01e6. Epub 2019 Jan 25.
We report the zero-field and longitudinal field muon spin relaxation studies in a spin-chain compound SmBaNiO. Two magnetic transitions, that have not been previously detected by the heat capacity and magnetization measurements, are confirmed at 46 and 9 K. The antiferromagnetic order is suggested at 46 K. Analysis of the muon spin polarization unveils the spin-glass transition at 9 K. Time-field scaling relation of the muon spin polarization verifies the spin-spin autocorrelation function following the cut-off power law, which is approximated by the Ogielski form, as employed numerically for characterizing the spin-glasses.
我们报道了对自旋链化合物SmBaNiO的零场和纵向场μ子自旋弛豫研究。通过热容和磁化测量先前未检测到的两个磁转变，在46K和9K时得到证实。在46K时表明存在反铁磁序。对μ子自旋极化的分析揭示了在9K时的自旋玻璃转变。μ子自旋极化的时间场标度关系验证了自旋自旋自相关函数遵循截止幂律，该幂律由Ogielski形式近似，在数值上用于表征自旋玻璃。
