Conduction electron spin-lattice relaxation time in the MgB2 superconductor

  title={Conduction electron spin-lattice relaxation time in the MgB2 superconductor},
  author={F. Simon and F. Mur'anyi and T. Feh'er and A. J'anossy and L. Forr'o and C. Petrovic and S. Bud'ko and P. Canfield},
The spin-lattice relaxation time, T1, of conduction electrons is measured as a function of temperature and magnetic field in MgB2. The method is based on the detection of the z component of the conduction electron magnetization under electron spin resonance conditions with amplitude modulated microwave excitation. Measurement of T1 below Tc at 0.32 T allows to disentangle contributions from the two Fermi surfaces of MgB2 as this field restores normal state on the Fermi surface part with… Expand

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