Direct evidence of weak-link grain boundaries in a polycrystalline MgB2 superconductor

Khare, N.Singh, D. P.Gupta, A. K.Sen, S.Aswal, D. K.Gupta, S. K.2018-11-022018-11-022005Journal of Applied Physics, 2005. Vol. 97: Article no. 076103http://hdl.handle.net/123456789/172324062 bytestext/htmlenDirect evidenceweak-link grain boundarypolycrystalline MgB2 superconductorvoltage-flux oscillationsSQUID modulationDirect evidence of weak-link grain boundaries in a polycrystalline MgB2 superconductorArticle