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A new family of magnetoelectric materials: A2M4O9(A = Ta, Nb; M = Mn, Co) |
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| Authors: | E Fischer G Gorodetsky R M Hornreich |
| Institution: | Department of Electronics, The Weizmann Instituet of Science, Rehovot, Israel a Department of Physics, University of the Negev, Beersheva, Israel b Department of Electronics, The Weizmann Institute of Science, Rehovot, Israel Department of Electronics, The Weizmann Institute of Science, Rehovot, Israel |
| Abstract: | The existence of the magnetoelectric (ME) effect in the transition metal niobates and tantalates A2M4O9(A = Ta, Nb; M = Mn, Co) has been confirmed by the observation of the electrically induced magnetic moment in these materials. Both parallel and prependicular ME susceptibilities were measured as a function of temperature in powder specimens. The transition temperatures were found to be 110 ±1 (Nb2Mn4O9), 103 ±1 (Ta2Mn4O9), 27.0 ±0.5 (Nb2Co4O9), and 20.6 ±0.5°K (Ta2Co4O9) from the ME measurements. |
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