Anomalous magnetic properties of Sr(2)YRuO(6)
DSpace at IIT Bombay
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Title |
Anomalous magnetic properties of Sr(2)YRuO(6)
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Creator |
SINGH, RP
TOMY, CV |
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Subject |
weak ferromagnetism
superconductivity crystal sr |
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Description |
Anomalous magnetic properties of the double perovskite ruthenate compound Sr(2)YRuO(6) are reported here. Magnetization measurements as a function of temperature in low magnetic fields show clear evidence for two components of magnetic order (T(M1)similar to 32 K and T(M2)similar to 27 K) aligned opposite to each other with respect to the magnetic-field direction even though only Ru(5+) moments can order magnetically in this compound. The second component of the magnetic order at T(M2)similar to 27 K results only in a magnetization reversal, and not in the negative magnetization when the magnetization is measured in the field-cooled (FC) mode. Isothermal magnetization (M-H) measurements show hysteresis with maximum coercivity (H(c)) and remnant magnetization (M(r)) at T similar to 27 K, corroborating the presence of the two oppositely aligned magnetic moments, each with a ferromagnetic component. The two components of magnetic ordering are further confirmed by the double peak structure in the heat-capacity measurements. These anomalous properties have significance to some of the earlier results obtained for the Cu-substituted superconducting Sr(2)YRu(1-x)Cu(x)O(6) compounds.
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Publisher |
AMER PHYSICAL SOC
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Date |
2011-07-16T19:31:14Z
2011-12-26T12:49:56Z 2011-12-27T05:35:45Z 2011-07-16T19:31:14Z 2011-12-26T12:49:56Z 2011-12-27T05:35:45Z 2008 |
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Type |
Article
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Identifier |
PHYSICAL REVIEW B, 78(2), -
1098-0121 http://dx.doi.org/10.1103/PhysRevB.78.024432 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4512 http://hdl.handle.net/10054/4512 |
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Language |
en
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