Abstract
We report the results of a muon-spin relaxation () investigation of , an antiferromagnetic insulating series which has been shown to support charge ordered and magnetic stripe phases and an hourglass magnetic excitation spectrum. We present a revised magnetic phase diagram, which shows that the suppression of the magnetic ordering temperature is highly sensitive to small concentrations of holes. Distinct behavior within an intermediate range () suggests that the putative stripe ordered phase extends to lower than previously thought. Further charge doping () prevents magnetic ordering for .
- Received 21 October 2015
- Revised 9 March 2016
DOI:https://doi.org/10.1103/PhysRevB.93.140406
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