Effect of a Static Magnetic Field on the Low-Frequency Dielectric Permittivity of Triglycine Sulfate Crystals Nominally Pure or Doped with Со²⁺ Ions

Abstract

The authors investigate the effect a weak static magnetic field has on the low-frequency dielectric permittivity of crystals of nominally pure triglycine sulfate (TGS) and TGS containing cobalt ions (TGS + Со²⁺). The magnetic effect in TGS is highly anisotropic when vectors $\vec {B}$ are ${{\vec {P}}_{{\text{s}}}}$ are collinear. It is expressed most strongly when $\vec {B}$ ⊥ ${{\vec {P}}_{{\text{s}}}}$ and the magnetic field is oriented along crystallophysical axis $\vec {a}$. The magnetic effect in TFS + Со²⁺ is notably stronger than in TGS, but it is virtually independent of the mutual orientation of vectors $\vec {B}$ and ${{\vec {P}}_{{\text{s}}}}$.