Transport properties of nanoparticles of complex oxides: Likely presence of Coulomb blockade at low temperature

Journal of Nanoscience and Nanotechnology

Volumn 9, Issue 9, 2009, Pages 5315-5322

  Sarkar, Tapati ^a   Kamalakar, M Venkata ^a   Raychaudhuri, A K ^a  

^a S N BOSE NATIONAL CENTRE FOR BASIC SCIENCES   (India)

Author keywords

Complex oxides; Coulomb blockade; Transport properties

Indexed keywords

BULK SAMPLES; COMPLEX OXIDES; CONDUCTING GRAINS; ELECTRICAL RESISTIVITY; ELECTRICAL TRANSPORT; FERROMAGNETS; FUNCTIONAL OXIDES; GRADUAL CHANGES; INDEPENDENT VALUES; INSULATING STATE; LONG RANGE; LOW TEMPERATURES; METALLIC STATE; NANO-STRUCTURED; NON-MAGNETIC MATERIALS; PHYSICAL NATURE; SPIN ORDER; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE;

COBALT COMPOUNDS; COULOMB BLOCKADE; ELECTRIC CONDUCTIVITY; FERROMAGNETIC MATERIALS; FERROMAGNETISM; GRAIN BOUNDARIES; GRAIN SIZE AND SHAPE; MAGNETS; METAL ANALYSIS; NANOPARTICLES; OXIDES; SUPERCONDUCTING MATERIALS;

TRANSPORT PROPERTIES;

EID: 70350333375     PISSN: 15334880     EISSN: None     Source Type: Journal    
DOI: 10.1166/jnn.2009.1140     Document Type: Conference Paper

References (26)

1. R. Mahesh, R. Mahendiran, A. K. Raychaudhuri, and C. N. R. Rao, Appl. Phys. Lett. 68, 2291 (1996).
2. H. Y. Hwang, S. W. Cheong, N. P. Ong, and B. Batlogg, Phys. Rev. Lett. 77, 2041 (1996).
3. X. W. Li, Y. Lu, G. Q. Gong, G. Xiao, A. Gupta, P. Lecocur, J. Z. Sun, Y. Y. Wang, and V. P. Dravid, J. Appl. Phys. 81, 5509 (1997).
4. R. E. Cavicchi and R. H. Silsbee, Phys. Rev. Lett. 52, 1453 (1984).
5. T. A. Fulton and G. J. Dolan, Phys. Rev. Lett. 59, 109 (1987).
6. L. S. Kuzmin, P. Delsing, T. Claeson, and K. K. Likharev, Phys. Rev. Lett. 62, 2539 (1989).
7. L. Balcells, B. Martinez, F. Sandiumenge, and J. Fontcuberta, J. Phys. Condens. Matter 12, 3013 (2000).
8. N. Menyuk, P. M. Raccah, and K. Dwight, Phys. Rev. 166, 510 (1968).
9. K. P. Rajeev, G. V. Shivashankar, and A. K. Raychaudhuri, Solid State Commun. 79, 591 (1991);
10. N. Gayathri, A. K. Raychaudhuri, X. Q. Xu, J. L. Peng, and R. L. Greene, J. Phys. Condens. Matter 10, 1323 (1998).
11. B. Abeles, P. Sheng, M. D. Coutts, and Y. Arie, Adv. Phys. 24, 407 (1975).
12. O. Chayka, L. Kraus, P. Lobotka, V. Sechovsky, T. Kocourek, and M. Jelinek, J. Magn. Magn. Mater. 300, 293 (2006).
13. C. J. Yang, M. Zhang, and Z. D. Zhang, J. Korean Phys. Soc. 43, 762 (2003).
14. K. Shantha Shankar and A. K. Raychaudhuri, J. Mater. Res. 21, 27 (2006).
15. Sigma-Aldrich, Inc. 3050 Spruce Street, St. Louis, MO 63103, USA.
16. G. K. Williamson and W. H. Hall, Acta Metall. 1, 22 (1953).
17. Lakeshore 7400 Vibrating Sample Magnetometer, Lakeshore Cryotronics, Inc. 575 McCorkle Blvd Westerville, Ohio 43082.
18. Cryomech, Model PT405 Cryogenic Refrigerator, 113 Falso Drive, Syracuse, New York 13211, USA.
19. P. Kameli, H. Salamati, and A. Aezami, J. Appl. Phys. 100, 053914 (2006).
20. dead/d).
21. J. G. Brankov, D. M. Danchev, and N. S. Tonchev. The Theory of Critical Phenomena in Finite-Size Systems-Scaling and Quantum Effects, World Scientific, Singapore (2000).
22. R. Mahendiran and A. K. Raychaudhuri, Phys. Rev. B 54, 16044 (1996).
23. B. I. Shlovskii and A. L. Efros, Electronic Properties of Doped Semiconductors, Springer-Verlag, Berlin (1984).
24. A. K. Raychaudhuri, Adv. Phys. 44, 21 (1995).
25. The temperature range from 5 K to 3 K is a small temperature range to detect Δ accurately. We have measured the resistivity for the LSCO sample with the smallest particle size down to 1 K. The value of Δ extracted from this data is 0.026 meV which is in close agreement with the value we obtain by fitting the data between 5 K to 3 K (0.028 meV).
26. R. D. Sánchez, M. T. Causa, A. Caneiro, A. Butera, M. Vallet-Regí, M. J. Sayaguéz, J. González-Calbet, F. Garcí-Sanz, and J. Rivas, Phys. Rev. B 54, 16574 (1996).