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The authors have studied the resistivity, magnetoresistance, magnetostriction and specific heat of a sample of Y 4 Co 3 . They confirm the existence of a superconducting transition at T approximately 2.5K; specific heat data show that at least 20% of the sample becomes superconducting. They also find local moment effects, an exceptionally strong magnetoresistance and orbital effects.
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Cheng et al. (1982) studied this question.
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