Magnetic order and muon motion in VO2

13th International Conference on Muon Spin Rotation, Relaxation and Resonance

Mengyan, P.W.^1 ; Lichti, R.L.^1 ; Baker, B.B.^1 ; Jayarathna, G.^1

Department of Physics, Texas Tech University, Lubbock

TX

79409-1051, United States^1

关键词: Local magnetic field;    Magnetic orders;    Mud motion;    Muon site;    Relaxation rates;    Structural transitions;    Zero fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/551/1/012017/pdf
DOI  :  10.1088/1742-6596/551/1/012017

来源: IOP

【 摘 要 】

We report the first transverse, longitudinal and zero field measurements performed on Vanadium Dioxide (VO2) where we find a significant local magnetic field below T 34.7 ± 0.16 K at the muon site and Mud motion above 340 K. Distinct shifts in the muon relaxation rates and Kubo-Toyabe delta parameters, near the metal to semiconductor and structural transition (TMST 340 K), show that μ+SR measurements may provide additional means to further characterize the mechanisms contributing to these transitions that are yet to be understood.