Nonresonant microwave absorption in LiNbO3:Mg:Cr(Fe) in low magnetic fields
Zaritskii I. M., Rakitina L. G., Konchits A. A., Corradi G., Polgar K.
Nonresonant microwave absorption has been observed in LiNb03:Mg:Cr(Fe) crystals at Г<280 К in low magnetic fields. This is the first such observation. The effect might be a consequence of a superconductivity of internal regions in crystals which are basically insulators.