DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4455

Title: SmNi4B: A narrow domain-wall ferromagnet
Authors: MAZUMDAR, C
NAGARAJAN, R
GUPTA, LC
PADALIA, BD
VIJAYARAGHAVAN, R
Keywords: magnetic-properties
rare-earth
metal
superconductivity
Issue Date: 2000
Publisher: AMER INST PHYSICS
Citation: APPLIED PHYSICS LETTERS, 77(6), 895-897
Abstract: 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].
URI: http://dx.doi.org/10.1063/1.1306294
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4455
http://hdl.handle.net/10054/4455
ISSN: 0003-6951
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback