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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2013

Observation of conduction electron spin resonance in boron doped diamond

Péter Szirmai
  • Fonction : Auteur
Gábor Fábián
  • Fonction : Auteur
János Koltai
  • Fonction : Auteur
Bálint Náfrádi
  • Fonction : Auteur
Thomas Pichler
  • Fonction : Auteur
Oliver A. Williams
  • Fonction : Auteur

Résumé

We observe the electron spin resonance of conduction electrons in boron doped (6400 ppm) superconducting diamond (Tc =3.8 K). We clearly identify the benchmarks of conduction electron spin resonance (CESR): the nearly temperature independent ESR signal intensity and its magnitude which is in good agreement with that expected from the density of states through the Pauli spin-susceptibility. The temperature dependent CESR linewidth weakly increases with increasing temperature which can be understood in the framework of the Elliott-Yafet theory of spin-relaxation. An anomalous and yet unexplained relation is observed between the g-factor, CESR linewidth, and the resistivity using the empirical Elliott-Yafet relation.

Dates et versions

hal-00993958 , version 1 (20-05-2014)

Identifiants

Citer

Péter Szirmai, Gábor Fábián, János Koltai, Bálint Náfrádi, László Forró, et al.. Observation of conduction electron spin resonance in boron doped diamond. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2013, 87 (19), pp.195132. ⟨10.1103/PhysRevB.87.195132⟩. ⟨hal-00993958⟩

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