In:
physica status solidi (b), Wiley, Vol. 250, No. 7 ( 2013-07), p. 1287-1292
Abstract:
The magnetic compensation and magnetostriction properties in Fe‐doped CoCr 2 O 4 samples have been investigated. Structural and magnetic measurements imply that the doped Fe 3+ ions initially occupy the B1 (Cr) sites when x 〈 0.1, and then mainly take the A (Co) sites. This behaviour results in a role conversion of magnetic contributors and a composition compensation between two competitively magnetic sublattices at x = 0.1. Temperature‐dependent compensation has also been found in the samples with x = 0.1–0.22, with the compensation temperature in the range of 40–104 K. The Fe 3+ doping also modulates the exchange interaction of the system and prevents the formation of long‐range conical order of spins. The magnetoelectric transition temperature at 23 K in CoCr 2 O 4 is shifted to lower temperature by increasing the dopants. The magnetostriction effect in this system has been observed for the first time. The strain has a maximum value of about 280 ppm at x = 0.4. The magnetostriction is consistent with the behaviour of the two magnetic compensations.
Type of Medium:
Online Resource
ISSN:
0370-1972
,
1521-3951
DOI:
10.1002/pssb.201248470
Language:
English
Publisher:
Wiley
Publication Date:
2013
detail.hit.zdb_id:
208851-4
detail.hit.zdb_id:
1481096-7
