Abstract
We report here the observation of ferrimagnetism in a sample of nominal composition TlSrVO y, prepared in a reducing atmosphere of 5% hydrogen in argon. The zero-field cooled magnetic moment (measured at applied field of 50 Oe) shows a net negative magnetic moment at temperatures below 30 K, rising to zero at a characteristic compensation temperature, Θ c, of 30 K. The magnitude of the spontaneous magnetic moment reaches a maximum at T max= 75 K, then decreases to a value close to zero at the Curie temperature, T curie, of 91 K. This behaviour is reminiscent of that observed previously in the field-cooled magnetic moment of the ferrimagnetic compound Co 2VO 4 measured at 700 Oe. (T curie= 158 K, T max. = 139 K and Θ c= 70 K). [1] Supporting evidence for ferrimagnetism in the TlSrVO y compound comes from electrical resistivity measurements, which show a metal-to-metal transition at the Curie temperature.
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