The discovery of the superconductivity with remarkably high critical temperature(T_(C)~39 K)in the binary intermetallic MgB_(2) compound[1]has given rise to a considerable effort in the condensed matter community in t...The discovery of the superconductivity with remarkably high critical temperature(T_(C)~39 K)in the binary intermetallic MgB_(2) compound[1]has given rise to a considerable effort in the condensed matter community in the last three years.Indeed,it promises a higher operating temperature than Nb_(3)Ge with T_(C)=23 K and unlike the cuprates it shows a lower anisotropy,larger coherence length,higher transparency of the grain boundaries for current flow,which makes it a good candidate for applications.展开更多
文摘The discovery of the superconductivity with remarkably high critical temperature(T_(C)~39 K)in the binary intermetallic MgB_(2) compound[1]has given rise to a considerable effort in the condensed matter community in the last three years.Indeed,it promises a higher operating temperature than Nb_(3)Ge with T_(C)=23 K and unlike the cuprates it shows a lower anisotropy,larger coherence length,higher transparency of the grain boundaries for current flow,which makes it a good candidate for applications.
