SUPERCONDUCTIVITY IN THE QUATERNARY INTERMETALLIC COMPOUND YNI2-XTXB2C
DOI:
https://doi.org/10.53555/ephijse.v9i1.196Abstract
We report here our observance of superconductivity in compounds derived from the quaternary intermetallic superconductor YNi2B2C by partial substitutions for Ni. Other 3d transition metals T Î {Ti, V, Cr, Mn, Fe, Co, Cu, Zn} were used in replacement fractions x = 0.05 and x = 0.10. AC magnetic susceptibility cAC showed all except T = Zn had the characteristic diamagnetic response seen in superconductors. DC SQUID magnetometry on several samples confirmed type II superconducting behavior. X-ray diffraction showed a crystal structure similar to the parent compound for all but Zn. Some of the x = 0.10 compounds appeared to have minor secondary phases present despite annealing.
References
Cava, R. J., Takagi, H., Zandbergen, H. W., Krajewski, J. J., Peck, Jr, W. F.,Siegrist, T., Batlogg, B., van Dover, R. B., Felder, R. J., Mizuhashi, K., Lee, J. O., Eisaki, H., & Uchida, S. Superconductivity in the quaternary intermetallic compounds LnNi2B2C. Nature, 367, 252-253 (1994).
Cava, R. J., Takagi, H., Batlogg, B., Zandbergen, H. W., Krajewski, J. J., Peck, Jr, W. F., van Dover, R. B., Felder, Siegrist, T., R. J., Mizuhashi, K., Lee, J. O., Eisaki, H., Carter, S. A. & Uchida, S. Superconductivity at 23 K in yttrium palladium boride carbide. Nature, 367, 146-148 (1994).
Nagarajan, R., Mazumdar, C., Hossain, Z., Dhar, S. K., Gopalakrishnan, K. V., Gupta, L.C., Godart, C., Padalia, B. D., & Vijayaraghavan, R. Bulk Superconductivity at an Elevated Temperature (TC ? 12K) in a Nickel Containing Alloy System Y-Ni- B-C. Physical Review Letters, 72, 274-277 (1994).
Mazumdar, C., Nagarajan, R., Godart, C., Gupta, L. C., Latroche, M., Dhar, S. K., Levy-Clement, C., Padalia, B. D., and Vijayaraghavan, R. Superconductivity at 12 K in Y-Ni-B System. Solid State Communications, 87, 413-416 (1993).
Siegrist, T., Zandbergan, H. W., Cava, R. J., Krajewski, J. J., & Peck, Jr, W. F. The crystal structure of superconducting LuNi2B2C and the related phase LuNiBC. Nature, 367, 254-256 (1994).
Ashcroft, N. W. & Mermin, N. D. Solid State Physics, W. B. Saunders, 1976.
Ginzburg, V. L. & Andryushin, E. A. Superconductivity, World Scientific, 1994.
Serway, R. & Jewett, Jr, J. Physics for Scientists and Engineers, 10th Edition, Cengage Learning, 2019.