Anomalous low-temperature magnetic and magnetotransport properties in Ru-deficient SrRuO3

Sow, Chanchal and Samal, D and Kumar, Anil PS (2012) Anomalous low-temperature magnetic and magnetotransport properties in Ru-deficient SrRuO3. In: Journal of Applied Physics, 111 (7). 07E121-07E121.

PDF jou_app_phy_111_2012.pdf - Published Version Restricted to Registered users only Download (913kB) | Request a copy

Abstract

SrRuO3 is a well-known itinerant ferromagnet with many intriguing characteristics. The Ru deficiency in this system is believed to play a pivotal role in influencing many of its magnetic and transport properties. The present study involves the magnetic and transport properties of the Ru-deficient SrRu0.93O3 sample to gain more insight into the unusual low-temperature behavior. The ac susceptibility study reveals a sharp ferromagnetic transition at 150 K followed by a hump at T-h similar to 50 K, which has anomalous frequency dependence. Besides, the T-h shifts to lower temperatures with an increase in the superposed dc-biasing field and adheres to H-2 dependence, in accordance with the Gabay and Toulouse line for the Heisenberg spin glass systems. We also observe a pronounced memory effect toward the low-temperature side, signifying the characteristic of glassy behavior. The temperature-dependent magnetoresistance indicates the signature of an additional ordering toward the low-temperature side. All of the interesting findings combined unveil the existence of low-temperature cryptic magnetic phase in SrRu0.93O3. (C) 2012 American Institute of Physics. doi:10.1063/1.3673427]

Item Type:	Journal Article
Publication:	Journal of Applied Physics
Publisher:	IEEE
Additional Information:	Copyright © 2012 American Institute of Physics
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	12 Jun 2012 12:00
Last Modified:	12 Jun 2012 12:00
URI:	http://eprints.iisc.ac.in/id/eprint/44670

Actions (login required)

View Item