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Measurements of the 16-Hz susceptibility of a powdered Na3[Ce(C7H3NO4)3] · 15H2O (CDP) sample, in the shape of a right-circular cylinder with diameter equal to height, have been made as a function of the Johnson noise temperature TJ of a resistor in the range 2 to 20 mK. Pure liquid 3He was used for thermal contact between the CDP and the noise thermometer in a demagnetization cell. The results are compared with similar data for cerium magnesium nitrate (CMN). CDP appears, like CMN, to have an anomalously low thermal resistance to pure liquid 3He.


Webb, R. A., & Wheatly, J. C. (1972). Magnetic and thermometric properties of Na3[Ce(C7H3NO4)3] · 15H2O in the millikelvin range. Physical Review Letters, 29(17), 1150-1152. DOI: 10.1103/PhysRevLett.29.1150

© Physical Review Letters, 1972, American Physical Society

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