Frustration relief and reorientation transition in the kagomelike dolerophanite <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">Cu</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">OSO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math>
Physical review. B./Physical review. B