We have used double tunnel junctions M1-S2-N3 to measure the detector junction (S2-N3) voltage at zero detector current V d(0) vs. generator junction (M1-S2) current I g for samples cooled by helium exchange gas. We find terms both symmetric V d S(0; I g 2) and asymmetric V d A(0; I g) in I g. The term V d S is attributed to a thermoelectric voltage generated in the sample; V d A is produced by Q *, the distribution function branch imbalance, in S2. We have analyzed Q * relaxation in these samples and have compared the results with those obtained earlier by Paterson. For Sn and Sn : In alloys we find % MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr% 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9% vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x% fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqiXdq3aaS% baaSqaaGqaaiaa-ffacaWFQaaabeaakiabg2da9Gqaciaa+fdacaGF% UaGaa4xmaiaa+flacaGFWaGaa4Nlaiaa+jdacaGFxdGaa4xmaiaa+b% dadaahaaWcbeqaaiaa+1cacaGFXaGaa4hmaaaakiabfs5aejaacIca% caGFWaGaaiykaiaac+cacqqHuoarcaGGOaGaa8hvaiaacMcaaaa!4C83!\[\tau _{Q*} = 1.1 \pm 0.2 \times 10^{ - 10} \Delta (0)/\Delta (T)\] sec for T ∼- T c; the data at all temperatures have been compared with the calculations by Chang. The attempt to measure % MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr% 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9% vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x% fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeqiXdq3aaS% baaSqaaGqaaiaa-ffacaWFQaaabeaaaaa!3964!\[\tau _{Q*} \] in Pb near T c is discussed and data are presented for V d S for Pb.
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Supported by grants from the Research Corporation and the National Science Foundation (DMR 74-23661).
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Moody, M.V., Paterson, J.L. Relaxation of the distribution function branch imbalance Q * in Sn and Sn-In alloys. J Low Temp Phys 34, 83–103 (1979). https://doi.org/10.1007/BF00118551
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DOI: https://doi.org/10.1007/BF00118551