نتایج جستجو برای: magnetoelastic wave
تعداد نتایج: 218863 فیلتر نتایج به سال:
The interaction between magnetic and acoustic excitations has recently inspired many interdisciplinary studies ranging from fundamental physics to circuit implementation. Specifically, the exploration of their coherent interconversion enabled via magnetoelastic coupling opens a new playground combining straintronics spintronics provides unique platform for building up on-chip information proces...
Using high resolution neutron diffraction and capacitance dilatometry we show that the thermal evolution of the helimagnetic state in CoMnSi is accompanied by a change in interatomic distances of up to 2%, the largest ever found in a metallic magnet. Our results and the picture of competing exchange and strongly anisotropic thermal expansion that we use to understand them sheds light on a new m...
We investigated magnetoelastic coupling through the field-driven transition to the fully polarized magnetic state in quasi-two-dimensional [Cu(HF2)(pyz)2]BF4 by magnetoinfrared spectroscopy. This transition modifies out-of-plane ring distortion and bending vibrational modes of the pyrazine ligand. The extent of these distortions increases with the field, systematically tracking the low-temperat...
2014 The temperature variation of the amplitude modulated magnetic structures of HoAg and TmAg has been investigated by neutron diffraction on single crystals. A beginning of squaring-up has been observed, but due to experimental conditions the expected antiphase regime could not be fully reached. No locking of the incommensurate propagation vector into commensurate values has been evidenced wi...
اثر متقابل فاز پادفرومغناطیس (af) و ابررسانایی (sc) همواره مورد توجه فیزیکدانان تجربی و نظری بوده است. رقابت میان دو پارامتر نظم متفاوت در بسیاری از سیستم های گوناگون از جمله ابررساناهای دمای بالا دیده شده است. در برخی ترکیبات مثل اکسید مس فازهای پادفرومغناطیس و ابررسانایی بسیار نزدیک بهم ولی مجزا هستند؛ در حالی که در ترکیبات دیگری از قبیل ابررساناهای آلی، ترکیبات سه تایی و ترکیبات فرمیون های س...
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