کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
973618 1480120 2016 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Partition function zeros and magnetization plateaus of the spin-1 Ising–Heisenberg diamond chain
ترجمه فارسی عنوان
صفرهای تابع پارتیشن و پلات‌های مغناطیسی زنجیره الماس اسپین-1 Ising-Heisenberg
کلمات کلیدی
مدل اسپین Ising-Heisenberg؛ فلات مغناطیسی؛ زنجیره الماس؛ صفر یانگ لی؛ صفر فیشر
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی


• We consider the spin-1 Ising–Heisenberg model on a diamond chain.
• Exact ground-state phase diagrams are derived.
• The existence of the magnetic and quadrupole moments plateaus is shown.
• Distributions of the Yang–Lee and Fisher zeros have been studied.

We study the properties of the generalized spin-1 Ising–Heisenberg model on a diamond chain, which can be considered as a theoretical model for the homometallic magnetic complex [Ni3(C4H2O4)2−(μ3−OH)2(H2O)4]n⋅(2H2O)n. The model possesses a large variety of ground-state phases due to the presence of biquadratic and single-ion anisotropy parameters. Magnetization and quadrupole moment plateaus are observed at one- and two-thirds of the saturation value. The distributions of Yang–Lee and Fisher zeros are studied numerically for a variety of values of the model parameters. The usual value σ=−12 alongside an unusual value σ=−23 ​is determined for the Yang–Lee edge singularity exponents.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 453, 1 July 2016, Pages 116–130
نویسندگان
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