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cond-mat.other2009★ 50 cited
Magnetoelectric Cr_2 O_3 and relativity theory
Friedrich W. Hehl, Yuri N. Obukhov, Jean-Pierre Rivera +1
Relativity theory is useful for understanding the phenomenology of the magnetoelectric effect of the antiferromagnet chromium sesquioxide Cr_2 O_3 in two respects: (i) One gets a c…
cond-mat.other2007★ 90 cited
Relativistic nature of a magnetoelectric modulus of Cr_2O_3-crystals: a new 4-dimensional pseudoscalar and its measurement
Friedrich W. Hehl, Yuri N. Obukhov, Jean-Pierre Rivera +1
Earlier, the magnetoelectric effect of chromium sesquioxide Cr_2O_3 has been determined experimentally as a function of temperature. One measures the electric field-induced magneti…