Determination of microscopical parameters of heterogeneous carbon materials

  • Vladimir A. Dorosinets Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus https://orcid.org/0000-0001-5083-9101
  • Victor A. Borisov Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

Abstract

Experimental studies of the temperature dependence of the resistance and magnetoresistance of the composite metal-carbon samples C(Co), which show the effect of weak localization, have been carried out. The magnetoresistance at a temperature T = 2.2 K is alternating, which is explained by the spin-orbit interaction. Analysis of the magnetoresistance curves made it possible to calculate the values of the parameters characterizing the phase loss time in inelastic scattering and the spin-orbit interaction time. For the parameter characterizing the elastic scattering time, the minimum value was estimated.

Author Biographies

Vladimir A. Dorosinets, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

PhD (physics and mathematics); leading researcher at the department of semiconductor physics and  nanoelectronics, faculty of physics

Victor A. Borisov, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

student at the faculty of physics

References

  1. Bashmakov IA, Dorosinets VA, Lukashevich MG, Mazanik A, Tihonova T, Zabel T, et al. Preparation, structure, and magnetic properties of cobalt nanoparticles in carbon fibers. Journal of Materials Research. 2001;16(10):2832–2835. DOI: 10.1557/JMR.2001.0390.
  2. Bashmakov IA, Dorosinets VA, Lukashevich MG, Mazanik AA, Tikhonova TF, Skripka DA. [Preparation, structure, and magnetic properties of cobalt nanoparticles in carbon fibers]. Fizika tverdogo tela. 2002;44(9):1614 –1621. Russian.
  3. Bayot V, Piraux L, Michenaud J-P, Issi J-P, Lelaurain M, Moore A. Two-dimensional weak localization in partially graphitic carbons. Physical Review B. 1990;41(17):11770 –11779. DOI: 10.1103/physrevb.41.11770.
  4. Dorosinets VA, Ksenevich VK, Seliuta D, Martunas Z, Valuˇsis G. Investigation of quantum effects in carbonaceous materials near the metal-insulator transition by means of THz photoconductivity. Acta Physica Polonica A. 2008;113(3):875–879. DOI: 10.12693/ APhysPolA.113.875.
  5. Du G, Prigodin VN, Burns A, Joo J, Wang CS, Epstein AJ. Unusual semimetallic behavior of carbonized ion-implanted polymers. Physical Review B. 1998;58(8):4485– 4495. DOI: 10.1103/PhysRevB.58.4485.
  6. Gantmacher VF. Elektrony v neuporyadochennykh sredakh [Electrons in Disordered Media]. Moscow: Fizmatlit; 2013. Russian.
  7. Hikami S, Larkin AI, Nagaoka Y. Spin-orbit interaction and magnetoresistance in the two dimensional random system. Progress of Theoretical Physics. 1980;63(2):707–710. DOI: 10.1143/PTP.63.707.
  8. Wang Yu, Santiago-Aviles JJ. Large negative magnetoresistance and strong localization in highly disordered electrospun pregraphitic carbon nanofiber. Applied Physics Letters. 2006;89(12):123119 –123119-3. DOI: 10.1063/1.2338573.
  9. Piraux L, Bayot V, Issi JP, Dresselhaus MS, Endo M, Nakajima T. Infiuence of magnetic fields on the two-dimensional electron transport in weakly disordered fiuorine-intercalated graphite fibers. Physical Review B. 1992;45(24):14315–14320. DOI: 10.1103/ physrevb.45.14315.
  10. Rosenbaum R. Superconducting fluctuations and magnetoconductance measurements of thin films in parallel magnetic fields. Physical Review B. 1985;32(4):2190 –2199. DOI: 10.1103/physrevb.32.2190.
  11. Bergmann G. Weak localization in thin films: a time-of-flight experiment with conduction electrons. Physics Reports. 1984; 107(1):1–58. DOI: 10.1016/0370-1573(84)90103-0.
Published
2019-10-03
Keywords: carbon, quantum correction, weak localization, magnetoresistance
Supporting Agencies The work was performed in the framework of the research project 881/06 «Investigate the properties of integrated nanostructures, and develop diagnostic methods and proposals for their usage» (State Research Program «Convergence»).
How to Cite
Dorosinets, V. A., & Borisov, V. A. (2019). Determination of microscopical parameters of heterogeneous carbon materials. Journal of the Belarusian State University. Physics, 3, 61-67. https://doi.org/10.33581/2520-2243-2019-3-61-67