中国物理B ›› 1993, Vol. 2 ›› Issue (3): 190-197.doi: 10.1088/1004-423X/2/3/004
罗阳a,侯玉敏a,计其根b
LUO YANG (罗阳)a, HOU YU-MIN (侯玉敏)a, JI QI-GEN (计其根)b
摘要: The ultrasonic velocity V and attenuation A of both longitudinal and shear waves in an anisotropic NdFeB magnet were measured over the temperature range from 80K to 300 K by the pulse echo method. The anisotropy of the ultrasonic wave propagating in a NdFeB magnet was observed. Anomalous changes in both V-T and A-T curves in the temperature range of 110-160 K were found, which might be due to the spin reorientation phase transition of Nd2Fe14B.
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