Absence of zero-field-cooled exchange bias effect in single crystalline <math> <mrow> <msub> <mi>La</mi> <mrow> <mn>2</mn> <mo>−</mo> <mi>x</mi> </mrow> </msub> <msub> <mi>A</mi> <mi>x</mi> </msub> </mrow> </math> <math> <msub> <mi>CoMnO<</mi></m

03/25/2022