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Date: 27-2-2021
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Antiferromagnetic resonance
An antiferromagnet is composed of two equal and opposite sublattices, each of which is subject to an anisotropy field and an exchange field. The exchange field on the ‘A’ sublattice, for example, is HexA = −nABMB , where nAB is the molecular field coefficient. Solving the equations of motion for mx,my for the two sublattices leads to the solution
Molecular field coefficients may take values of up to 100 T in antiferromagnets, so the resonance frequencies are very high, often in the 102–103 GHz range.
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إدارة الغذاء والدواء الأميركية تقرّ عقارا جديدا للألزهايمر
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شراء وقود الطائرات المستدام.. "الدفع" من جيب المسافر
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ضمن مؤتمر الإمام الحجة(عجل الله فرجه) العلمي باحث كويتي يناقش إثبات ولادة الإمام المهدي (عجّل الله فرجه) من التّوقيعات الشّريفة
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