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Сибирский государственный университет
науки и технологий имени академика М.Ф. Решетнева

Сибирский аэрокосмический журнал
ISSN 2712-8970 (Print) ISSN 2782-5760 (on-line)

Сведения об образовательной организации

UDK 539.21:537.86
METAL-INSULATOR TRANSITION IN THE CATION-SUBSTITUTED COMPOUNDS ReXMn1-XS (Re = Gd, Sm, Ho)
O. B. Romanova [1], [2]*, A. M. Kharkov [1], M. N. Sitnikov [1], V. V. Kretinin [1]
[1] Reshetnev Siberian State Aerospace University, 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation [2] L. V. Kirensky Institute of Physics SB RAS 50/38, Akademgorodok, Krasnoyarsk, 660036, Russian Federation *E-mail: rob@iph.krasn.ru
This paper presents the results of a study of the transport properties of cation-substituted sulfides ReXMn1-XS (Re = = Gd, Sm, Ho) with FCC NaCl type in the temperature range 77–1200 K. With increasing degree of cation substitution in these compounds ReXMn1-ХS (Re = Gd, Sm, Ho) the conductivity type changes from the semiconductor to the «metal» at the critical concentration XC. The concentration of metal-insulator transition in the system GdXMn1-XS is accompanied by a decreasing in the electrical resistivity of value on 12 orders and Seebeck coefficient (α) is on two orders. The cation-substitution in the solid solutions GdXMn1-XS leads to p-type conductivity (α > 0), as comprising to electronic (α < 0) for manganese monosulfide. Decrease of α with increasing gadolinium concentration in the MnS lattice indicates that the Gd acts as a donor impurity. For Sm0,2Mn0,8S a maximum resistance at T = 100 K attributed to the scattering of conduction electrons by spin fluctuations of localized electrons. The metallic conductivity for Sm0.25Mn0.75S and the mechanism of electrical resistance, which is related to the scattering of electrons by acoustic phonons and magnetic scattering by uncompensated antiferromagnetic manganese clusters at T < 180 K were revealed. As a result of the substitution of manganese to samarium in solid solution SmXMn1-XS the electron structure is reconstructed, and the resistance cannot be explained on the basis of the percolation of samarium ions. The temperature dependence of Seebeck coefficient for systems with gadolinium and with samarium reveals the negative values of thermoelectric power in the all range of temperatures with increasing concentration (X). The metal-insulator transition for system HoXMn1-XS at ХС = 0,3 is observed with decreasing resistivity on ten orders. The purpose of this work is to establish conditions for the realization of the metal-insulator transition in a cation-substituted systems ReXMn1-XS (Re = Gd, Sm, Ho).
sulfides of rare-earth elements, conductivity, transition metal-insulator, thermoelectric power.
References

  1. Mott N., Devis E. Elektronnye protsessy v nekristallicheskikh veshchestvakh [Electronic processes in non-crystalline materials]. 1982, Vol. 1, 368 p.

  2. Aplesnin S. S., Bandurina O. N., Romanova O. B., Ryabinkina L. I., Balaev A. D., Eremin E. V. The interrelation of magnetic and dielectric properties of CoХMn1−ХS solid solutions. J.Phys.: Condens. Matter, 2010, Vol. 22, P. 226006–226015.

  3. Aplesnin S. S., Ryabinkina L. I., Romanova O. B., Kharkov A. M., Gorev M. V., Balaev A. D., Eremin E. V., Bovina A. F. The magnetoelastic effect in CoХMn1-ХS solid solutions. Solid State Comm., 2010, Vol. 150, P. 564–567.

  4. Ryabinkina L. I., Romanova O. B., Aplesnin S. S. [Sulfide compounds MeXMn1-XS (Me = Cr, Fe, V, Co): the technology, the transport properties and magnetic ordering]. Izvestiya RAN. Seriya fizicheskaya, 2008, Vol. 72, P. 1115–1117 (In Russ.).

  5. Aplesnin S. S., Ryabinkina L. I., Romanova O. B., Bandurina O. N., Gorev M. V., Balaev A. D., Eremin E. V. [Spin-glass effects in solid solutions CoXMn1-XS]. Izvestiya RAN. Seriya fizicheskaya., 2009, Vol. 73, P. 1021–1023 (In Russ.).

  6. Aplesnin S. S., Romanova O. B., Kharkov A. M., Galyas A. I. [Study the transport properties of cation-substituted solid solutions YbXMn1-XS]. FTT, 2015, Vol. 57, P. 872–876 (In Russ.).

  7. Aplesnin S. S., Moskvin A. I. [The influence of strong electron correlations and interactions of electrons with the lattice on the electron orbital ordering]. ZhETF, 2010, Vol. 92, No. 4, P. 254–259 (In Russ.).

  8. Aplesnin S. S., Piskunova N. I. [Spin and charge of electron correlation in the dimer with degenerate orbitals and electrons filling n = 1,5]. Vestnik SibGAU, 2012, No. 2(42), P. 8–10 (In Russ.).

  9. Udod L. V., Aplesnin S. S., Sitnikov M. N., Molokeev M. S. [Dielectric and electrical properties of polymorphic pirostanata bismuth Bi2Sn2O7]. FTT, 2014, Vol. 56, P. 1267–1271 (In Russ.).

  10. Aplesnin S. S., Bandurina O. N., Ryabinkina L. I., Romanova O. B., Eremin E. V., Gorev M. V., Vorotynov A. M., Balaev D. A., Vasilev A. D., Galyas A. I., Demidenko O. F., Makovetskiy G. I. [The relationship of the magnetic and electrical properties of chalcogenides MouSe1-XTeX]. Izvestiya RAN. Seriya fizicheskaya., 2010, Vol. 74, P. 741–743 (In Russ.).

  11. Aplesnin S. S., Ryabinkina L. I., Romanova O. B., Sokolov V. V., Pichugin A. Yu., Galyas A. I., Demidenko O. F., Makovetskiy G. I., Yanushkevich K.I. [Magnetic and electric properties of the cation-substituted sulfides MeXMn1-XS (Me = Co, Gd)]. FTT, 2009, Vol. 51, P. 661–664 (In Russ.).

  12. Aplesnin S. S., Kharkov A. M., Eremin E. V., Romanova O. B., Balaev D. A., Sokolov V. V., Pichugin A. Yu. Nonuniform Magnetic States and Electrical Properties of Solid Solutions. IEEE Transactions on magnetics, 2011, Vol. 47, P. 4413–4416.

  13. Aplesnin S. S., Kharkov A. M., Sitnikov M. N., Sokolov V. V. Spin reduction in the HoXMn1-XS solid solution. JMMM, 2013, Vol. 347, P. 10–13.

  14. Petrakovskii G. A., Loseva G. V., Ryabinkina L. I., Aplesnin S. S. Metal insulator transition and magnetic properties indisordered systems of solid solutions MeXMn1-XS. JMMM, 1995, Vol. 140, P. 147–148.

  15. Romanova O. B., Ryabinkina L. I., Sokolov V. V., Pichugin A. Yu., Velikanov D. A., Balaev D. A.,
    Galyas A. I., Demidenko O. F., Makovetskii G. I., Yanushkevich K. I. Magnetic properties and the metal-insulator transition in GdXMn1-XS solid solutions. Solid State Comm., 2010, Vol. 150, P. 602–604.

  16. Aplesnin S. S., Sitnikov M. N. [Magnetotransport effects in the ferromagnetic state in GdXMn1-XS]. ZhETF, 2014, Vol. 100, P. 104–110 (In Russ).

  17. Aplesnin S. S., Romanova O. B., Kharkov A. M., Balaev D. A., Gorev M. V., Vorotinov A. M., Sokolov V. V., Pichugin A. Yu. Metal-semiconductor transition in SmXMn1-XS solid solutions. Phys. Status Solidi B., 2012, Vol. 249, P. 812–817.

  18. Aplesnin S. S., Kharkov A. M., Eremin E. V., Sokolov V. V. Electrical resistance of Sm0,25Mn0,75S spin glass. Solid State Phenomena., 2012, Vol. 190, P. 105–108.

  19. Aplesnin S. S., Ryabinkina L. I., Romanova O. B., Velikanov D. A., Balaev A. D., Balaev D. A., Yanushkevich K. I., Galyas A. I., Demidenko O. F., Bandurina O. N. [Transport properties of ferromagnetism and sulfides CoXMn1-XS]. ZhETF, 2008, Vol. 133,
    P. 875–883 (In Russ.).

 


Romanova Oksana Borisovna – Cand. Sc., senior researcher, Reshetnev Siberian State Aerospace University.  E-mail: rob@iph.krasn.ru

Kharkov Anton Mikhailovich – Cand. Sc., senior lecturer of Physics Department, junior researcher, Reshetnev Siberian State Aerospace University. Е-mail: khark.anton@mail.ru

Sitnikov Maxim Nikolaevich – postgraduate student, assistant of Physics Department, engineer, Reshetnev Siberian State Aerospace University. Е-mail: kineru@mail.ru

Kretinin Vasily Vasilevich – Master’s Degree student, Reshetnev Siberian State Aerospace University. E-mail: rob@iph.krasn.ru