Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Repolarization properties of copper-containing crystals of triglycine sulfate

N.N. Bolshakova1, N.Yu. Druginina2, A.I. Ivanova1, D.N. Pavlova1, B.B. Ped`ko1, E.M. Semenova1

1 Tver State University
2 Military Academy of Air and Space Defense named after Marshal of the Soviet Union G. K. Zhukov

DOI: 10.26456/pcascnn/2022.14.050

Original article

Abstract: The paper presents the results of the analysis of experimental dielectric hysteresis loops and field dependens of polarization switching of initial and annealed crystals of triglycine sulfate, doped copper (the concentration range (4,2–8,7) 10-3 wt.%). It has been experimentally established that their dielectric hysteresis loops do not have distortions. It has been found that the relative and effective permittivities and switchable polarization increase with increasing impurity concentration in crystals of TGS:Cu2+. The field dependences of the effective permittivity have extrema: before annealing the samples, the maxima of the εeff(E) curves correspond to a field value of about (20-40)∙103 V∙m-1, and for annealed samples these fields have a value of ~(15-30)∙103V∙m–1. Annealing of the samples increases the mobility of domain walls, which promotes the transformation of lenticular nuclei of domains into lamellae.

Keywords: triglycine sulfate, repolarization, domain structure, switching processes, hysteresis, permittivity

  • Nataly N. Bolshakova – Ph. D., Docent, Condensed Matter Physics Department, Tver State University
  • Nataly Yu. Druginina – Ph. D., Docent, Military Academy of Air and Space Defense named after Marshal of the Soviet Union G. K. Zhukov
  • Alexandra I. Ivanova – Ph. D., Docent, Applied Physics Department, Tver State University
  • Dariya N. Pavlova – 4th year student, Innovation Specialty, Tver State University
  • Boris B. Ped`ko – Ph. D., Dean of the Faculty of Physics and Technology, Tver State University
  • Elena M. Semenova – Ph. D., Docent, Condensed Matter Physics Department, Tver State University

Reference:

Bolshakova, N.N. Repolarization properties of copper-containing crystals of triglycine sulfate / N.N. Bolshakova, N.Yu. Druginina, A.I. Ivanova, D.N. Pavlova, B.B. Ped`ko, E.M. Semenova // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2022. — I. 14. — P. 50-60. DOI: 10.26456/pcascnn/2022.14.050. (In Russian).

Full article (in Russian): download PDF file

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