Kumar, Pramod and Jain, Puneet and Kumar, Rachana (2015) Pressure dependent magnetic, AC susceptibility and electrical properties of Nd7Pd3. RSC Advances, 5 (72). 58928 -58935. ISSN 2046-2069

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Abstract

The effects of pressure on the magnetization and isothermal entropy change, AC susceptibility, and resistivity for Nd7Pd3 have been studied. Nd7Pd3 shows three magnetic transitions T-t (=15 K), T-C (=34 K), and T-N (=38 K) at a pressure of zero bar. T-C and T-N are very sensitive to the pressure and rates of change of T-C and T-N with respect to pressure, i.e., dT(C)/dp and dT(N)/dp are -1.906 K kbar(-1) and -0.313 K kbar(-1) respectively, whereas Tt is insensitive to pressure change. It has also been observed that the isothermal entropy change is also sensitive to pressure. Below 15 K, an indication of spin glass nature in the AC susceptibility data is seen. The time dependent magnetization at low temperatures also supports the spin glass nature, but at high temperatures it indicates a complex nature. The electrical resistivity data has been fitted to the relation rho = rho(0) + AT(2) in the temperature range 12-30 K and rho = rho(0) + BT - CT3 in the temperature range 40-220 K. The M-H isotherm confirms the AFM nature of Nd7Pd3, which is confirmed further by the Arrott's plot.

Item Type:	Article
Subjects:	Chemistry
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	06 Oct 2016 06:30
Last Modified:	06 Oct 2016 06:30
URI:	http://npl.csircentral.net/id/eprint/1952

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