Phase diagram for K(1−x)(NH4)(x)H2PO4 (x = 0 − 0.15) solid solutions embedded into magnetic glasses
https://doi.org/10.17586/2220-8054-2017-8-6-835-838
Abstract
Effect of magnetic field application on phase transition in nanostructured solid solutions (1 − x)KH2PO4 – (x)(NH4)H2PO4 at x = 0, 0.05 and 0.15 has been studied by dielectric spectroscopy at B = 0 − 10T. The samples have been prepared by impregnation of magnetic porous glasses by KDP-ADP solid solutions. The average pore diameter in glasses was 50(5) nm. The temperatures of the ferroelectric phase transition have been determined, and the phase diagrams for these nanocomposite materials (NCM) on cooling and heating (including at magnetic field application) were constructed. The interface “matrix-nanoparticles” was shown to play the principal role in phase diagram formation.
Keywords
Supporting agencies: A.A. Sysoeva and A.A. Naberezhnov thank the Russian Foundation for Basic Researches (grant 15-02-01413) for financial support. In Peter the Great Saint Petersburg Polytechnic University the studies were carried out in the framework of the grant of Ministry of Education and Science of Russian Federation, No. 3.1150.2017/4.6. B. Nacke acknowledges DAAD program “Strategic Partnership with St. Petersburg State Polytechnical University and Leibniz Universitt Hannover”.
About the Authors
P. Yu. Vanina
Peter the Great Saint Petersburg Polytechnic University
Russian Federation
Russian Federation
Polytechnicheskaya, 29, St. Petersburg, 195251
A. A. Naberezhnov
Peter the Great Saint Petersburg Polytechnic University; Ioffe Institute
Russian Federation
Russian Federation
Polytechnicheskaya, 29, St. Petersburg, 195251; Polytechnicheskaya, 26, St. Petersburg, 194021
A. A. Sysoeva
Ioffe Institute
Russian Federation
Russian Federation
Polytechnicheskaya, 26, St. Petersburg, 194021
V. I. Nizhankovskii
International Laboratory of High Magnetic Fields and Low Temperatures
Poland
Poland
Gajowicka, 95, Wroclaw, 53-421
B. Nacke
Leibniz University of Hannover, ETP
Germany
Germany
Wilhelm-Busch-Street, 30167 Hannover
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Review
For citations:
Vanina P.Yu., Naberezhnov A.A., Sysoeva A.A., Nizhankovskii V.I., Nacke B. Phase diagram for K(1−x)(NH4)(x)H2PO4 (x = 0 − 0.15) solid solutions embedded into magnetic glasses. Nanosystems: Physics, Chemistry, Mathematics. 2017;8(6):835-838. https://doi.org/10.17586/2220-8054-2017-8-6-835-838
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