Origin of the weak ferromagnetism in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Gd</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span><span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">CuO</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math></span>

A. A. Stepanov; P. Wyder; T. Chattopadhyay; P. J. Brown; G. Fillion; I. M. Vitebsky; A. Deville; B. Gaillard; S. N. Barilo; D. I. Zhigunov

doi:10.1103/PhysRevB.48.12979

Origin of the weak ferromagnetism in ${Gd}_{2}$ ${CuO}_{4}$

A. A. Stepanov, P. Wyder, T. Chattopadhyay, P. J. Brown, G. Fillion, I. M. Vitebsky, A. Deville, B. Gaillard, S. N. Barilo, and D. I. Zhigunov

Phys. Rev. B 48, 12979 – Published 1 November 1993

Abstract

The magnetic properties of ${Gd}_{2}$ ${CuO}_{4}$ have been investigated by magnetization, electron paramagnetic resonance (EPR) and neutron-diffraction measurements in the temperature range 1.5–50 K to determine the magnetic phase diagram and to search for the origin of the weak ferromagnetism which has been observed in this compound. ${Gd}_{2}$ ${CuO}_{4}$ is found to have a rather complex magnetic phase diagram consisting of at least four distinct magnetic phases. The nature of the weak ferromagnetism is discussed and a possible origin of both the weak ferromagnetism and the phase transitions is proposed.