Tetrahedral coordination and low-spin configuration in a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>5</mml:mn><mml:mi>d</mml:mi></mml:mrow></mml:math> oxideQingbiao Zhao, J. F. Mitchell, Zhikhun Zhang et al.|Physical Review Materials|2019Cited by 6