Abstract
We have observed an excess specific heat in bcc solid 3He at lowtemperatures and at pressures between the melting pressure and 46 bar.The excess specific heat is nearly independent of temperature.In the solid just above the melting pressure, the magnitude of the anomalyis about 2.5 times larger than that at high pressures. Except for the solidnear the melting pressure, the magnitude is constant with pressure and isnearly the same as that in liquid 3He in Vycor. This anomaly of thespecific heat in solid 3He is explained in terms of the amorphoussurface solid on a disordered substrate.
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