کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8153446 1524767 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-conserved magnetization operator and 'fire-and-ice' ground states in the Ising-Heisenberg diamond chain
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Non-conserved magnetization operator and 'fire-and-ice' ground states in the Ising-Heisenberg diamond chain
چکیده انگلیسی
We consider the diamond chain with S = 1/2 XYZ vertical dimers which interact with the intermediate sites via the interaction of the Ising type. We also suppose all four spins form the diamond-shaped plaquette to have different g-factors. The non-uniform g-factors within the quantum spin dimer as well as the XY-anisotropy of the exchange interaction lead to the non-conserving magnetization for the chain. We analyze the effects of non-conserving magnetization as well as the effects of the appearance of negative g-factors among the spins from the unit cell. A number of unusual frustrated states for ferromagnetic couplings and g-factors with non-uniform signs are found out. These frustrated states generalize the “half-fire-half-ice” state introduced in reference Yin et al. (2015). The corresponding zero-temperature ground state phase diagrams are presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 454, 15 May 2018, Pages 85-96
نویسندگان
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