Electrical and magnetic properties of the complete solid solution series between SrRuO3 and LaRhO3: Filling t2g versus tilting

Barton, PT, Seshadri, R and Rosseinsky, MJ ORCID: 0000-0002-1910-2483 (2011) Electrical and magnetic properties of the complete solid solution series between SrRuO3 and LaRhO3: Filling t2g versus tilting Physical Review B Condensed Matter and Materials Physics, 83 (6). 064417-. ISSN 1098-0121, 1550-235X

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Abstract

A complete solid solution series between the t2g4 perovskite ferromagnet SrRuO<inf>3</inf> and the diamagnetic t2g6 perovskite LaRhO<inf>3</inf> has been prepared. The evolution with composition x in (SrRuO<inf>3</inf>) <inf>1-x</inf>(LaRhO<inf>3</inf>)<inf>x</inf> of the crystal structure and electrical and magnetic properties has been studied and is reported here. As x increases, the octahedral tilt angle gradually increases, along with the psuedocubic lattice parameter and unit-cell volume. Electrical resistivity measurements reveal a compositionally driven metal-to-insulator transition between x = 0.1 and 0.2. Ferromagnetic ordering gives over to glassy magnetism for x≥0.3, and no magnetic ordering is found above 2 K for x>0.5. M <inf>sat</inf> and Θ<inf>CW</inf> decrease with increasing x and remain constant after x = 0.5. The magnetism appears poised between localized and itinerant behavior and becomes more localized with increasing x, as evidenced by the evolution of the Rhodes-Wohlfarth ratio. μ<inf>eff</inf> per Ru is equal to the quenched spin-only S value across the entire solid solution. Comparisons with Sr<inf>1-x</inf>Ca<inf>x</inf>RuO<inf>3</inf> reinforce the important role of structural distortions in determining the magnetic ground state. It is suggested that electrical transport and magnetic properties are not strongly coupled in this system. © 2011 American Physical Society.

Item Type:	Article
Uncontrolled Keywords:	cond-mat.mtrl-sci, cond-mat.mtrl-sci, cond-mat.str-el
Depositing User:	Symplectic Admin
Date Deposited:	27 Jul 2016 15:11
Last Modified:	21 Apr 2026 23:06
DOI:	10.1103/PhysRevB.83.064417
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3002579
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