Ultrasonic determination of the elastic moduli and their pressure dependences in very dense YBa{sub 2}Cu{sub 3}O{sub 7{minus}x}

Abstract

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Short-range charge-ordering correlated elastic anomalies in La2/3Sr1/3FeO3

“…Through the ultrasonic measurements, two kinds of elastic modulus can be calculated. There are longitudinal modulus ClðT ð Þ¼rV l 2 Þ and transverse modulus GðT ð Þ¼rV t 2 Þ [18,19]. In these formulas, r is the mass density.…”