Record Details


Field	Value

Title	SmNi4B: A narrow domain-wall ferromagnet

Creator	MAZUMDAR, C NAGARAJAN, R GUPTA, LC PADALIA, BD VIJAYARAGHAVAN, R

Subject	magnetic-properties rare-earth metal superconductivity

Description	We have investigated magnetic properties of SmNi4B. The material undergoes a ferromagnetic ordering at T(C)approximate to 39 K, which, surprisingly, is higher than that of isostructural GdNi4B (approximate to 36 K). The saturation magnetic moment is rather small (0.15 mu(B) per Sm at 5 K), suggesting the presence of crystal-field effects. Below T-C, the material exhibits a large thermomagnetic irreversibility and also a large magnetic hysteresis at 5 K with a coercive field approximate to 28 kOe, which is one of the largest observed in a Sm-based material. We suggest that the large coercive field is intrinsic, associated with narrow domain walls of thickness of only one atomic layer, which resembles a ferroelectric wall. (C) 2000 [S0003-6951(00)04229-7].

Publisher	AMER INST PHYSICS

Date	2011-07-16T14:44:29Z 2011-12-26T12:49:49Z 2011-12-27T05:35:33Z 2011-07-16T14:44:29Z 2011-12-26T12:49:49Z 2011-12-27T05:35:33Z 2000

Type	Article

Identifier	APPLIED PHYSICS LETTERS, 77(6), 895-897 0003-6951 http://dx.doi.org/10.1063/1.1306294 http://dspace.library.iitb.ac.in/xmlui/handle/10054/4455 http://hdl.handle.net/10054/4455

Language	en

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