Ultrasonic velocity measurements near the 250°K phase transition in BaMnF4
作者： I.J. Fritz
DOI: 10.1016/0375-9601(75)90537-X
关键词: Ultrasonic velocity 、 Physics 、 Optics 、 Condensed matter physics 、 Shear (sheet metal) 、 Phase transition 、 Orthorhombic crystal system
摘要: Abstract Ultrasonic velocity measurements for longitudinal and shear modes propagating parallel to the crystallographic axes of orthorhombic BaMnF 4 are presented temperatures between 200°K 290°K. Sharp anomalies at ∼ 250°K observed V bc = cb cc .
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