用孤子模型计算Y_(1-x)Ca_xBa_2Cu_(2-x)M_xO_(7-δ)体系的转变温度  

Soliton Model for Theoretical Calculation of Tc in Y_(1_x)Ca_xBa_2Cu_(2-x)M_xO_(7_δ) System

作　　者：韩家骅[1] 黄效吾[1] 

机构地区：[1]安徽大学物理系,合肥230039

出　　处：《安徽大学学报（自然科学版）》1996年第1期25-29,共5页Journal of Anhui University(Natural Science Edition)

摘　　要：本文利用形变材料中的孤子阐明高温超导现象,导出转变温度T_c与能隙△的表达式并求出2△/k_BT_c的值。另外,利用Y_(1-x)Ca_xBa_2Cu_(2-x)M_xO_(7-δ)(M=Fe,Ni)体系的有关物理常数,计算出的T_c理论值与实验值符合得相当好。In this paper we offer a mechanism of High-temperature Superconductivityby using the soliton theory of deformable media. we obtain the relation between transitiontemperature Tc and energy gap ?. And 2?/kBTc is also found numerically. Furthermor we calculate the Tc values in Y1_xCaxBa2Cu2-xMxO7_? (M = Fe, Ni) system. Our theoretical results confirm to the experimental values.

关 键 词：形变材料 转变温度 孤子模型 超异体 高压 

分 类 号：O511.2[理学—低温物理] TM26[理学—物理]