Record Details

Magnetic phase transitions in R2Ni3Si5

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Magnetic phase transitions in R2Ni3Si5
 
Creator SKANTHAKUMAR, S
LYNN, JW
MAZUMDAR, C
NAGARAJAN, R
GUPTA, LC
 
Subject magnetoresistance
magnetic order
neutron diffraction
magnetic transitions
 
Description Neutron diffraction has been used to investigate the magnetic and crystal structures in R2Ni3Si5 (R = Pr, Nd, Tb, Dy, Ho). Our high-resolution data indicate that this system crystallizes in the Ibam space group. Pr orders antiferromagnetically at T-N = 8.8 K, with a magnetic unit cell that is double the chemical unit cell along the b direction. The magnetic and chemical unit cells are the same for the Nd spins, which order at 9.6 K. Tb first orders with an incommensurately modulated structure at 19 K, and then changes to a commensurate structure at 12.2 K. An incommensurate structure is also observed for Dy, which orders at 9 K, with a lock-in transition at similar to 4 K. The Ho system has an incommensurate structure with an ordering temperature of 6.9 K. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-10-23T01:19:34Z
2011-12-15T09:10:58Z
2011-10-23T01:19:34Z
2011-12-15T09:10:58Z
1997
 
Type Article; Proceedings Paper
 
Identifier PHYSICA B,241,693-695
0921-4526
http://dx.doi.org/10.1016/S0921-4526(97)00694-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15014
http://hdl.handle.net/100/1771
 
Source International Conference on Neutron Scattering,TORONTO, CANADA,AUG 17-21, 1997
 
Language English