【摘要】 测量了不同Bi₂Sr₂CuO₇单晶样品ab平面内电阻ρ_ab随温度的变化关系.对于处在掺杂不足区域的样品,没有观察到类似于YBa₂Cu₄O₈,YBa₂Cu₃O_r-y体系由于自旋能隙的出现而引起的电阻率的突然加快减小现象.我们对实验结果进行了讨论.更多还原

【Abstract】 The in-plane resistivity ρab as a function of temperature of Bi2Sr2CuOy crystals was measured. For the crystals in the underdoped region, we did not observe an-accelerated decrease in ρab with decreasing temperature as appeared in YBa2Cu O8, YBa2Cu3O7-y systems whinh was explained as the resutt of development of spin gap. A discussion of experimental results is presented.更多还原