研究与评论:材料科学杂雷竞技苹果下载志
菜单ISSN: 2321 - 6212
ISSN: 2321 - 6212
Rafal Michalski
原子系统有限公司，波兰
ScientificTracks抽象:Res. Rev. J Mat. science
DOI:10.4172 / 2321 - 6212 c6 - 029
本文介绍了Laves相C15家族中三种化合物DyAl2、HoAl2和ErAl2的磁性能的计算结果。我们将这些结果与最近发表的TbAl2, GdAl2和SmAl2的结果进行了比较。该计算方法基于局部电子方法，用于描述稀土R3+离子在宽温度范围内的热演化电子结构和计算磁热效应。根据Dy3+、Ho3+、Er3+离子的4f9、4f10和4f11构型的精细电子结构计算了热磁性能。我们的计算得到磁矩的值和方向;在m(T, Bext)不同方向外加磁场作用下的零场单晶磁化曲线;4f电子比热c4f(T, Bext);磁熵和等温熵随外加磁场变化的温度依赖性-ΔS(T, Bext)。用于DyAl2计算的立方CEF参数值取自A.L. Lima, A.O. Tsokol的早期研究，并重新计算了RAl2系列的通用立方参数(Am n)。我们的研究揭示了多极电荷相互作用在描述真实4f电子系统热磁特性时的重要性，以及应用自洽分子场在计算磁相变模拟中的有效性。 Recent Publications 1. Rafał Michalski and Jakub Zygadło (2018) Predictions of thermomagnetic properties of Laves Phase compounds: TbAl2, GdAl2 and SmAl2 performed with atomic matters MFA computation system. Journal of Magnetism and Magnetic Materials 452:415–426. 2. Rafał Michalski, Jakub Zygadło and Marek Karaś (2017) Effective methodology for calculation of magnetic properties of atomic systems in ordered state and around phase transition temperature. WSEAS Transactions on Computers 16:69-75. 3. Rafał Michalski and Jakub Zygadło (2017) Spin and orbital moment compensation in SmAl2. Calculations performed with atomic matters MFA computation system. International Journal of Applied Physics 2:11-17. 4. Rafał Michalski and Jakub Zygadło (2017) Predictions of thermomagnetic properties of HoAl2 and ErAl2 performed with atomic matters MFA computation system. WSEAS Transactions on Circuits and Systems 16:22-34. 5. Rafał Michalski and Jakub Zygadło (2017) Thermomagnetic properties of DyAl2 single crystal, calculated by atomic matters MFA computation system. WSEAS Transactions on Applied and Theoretical Mechanics 12:69-77.
rafaovic Michalski于1996年毕业于波兰克拉科夫大学物理、数学和计算机科学系。他曾在物理与计算机科学研究所担任助理教授(1996-2001年)，并于2001年在克拉科夫矿冶大学(AGH)核物理与固体物理系获得物理学博士学位。后来，他成为了副教授。他的博士论文是“用自洽方法计算4f电子化合物的热演化性质”。2001年，R. Michalski博士成为波兰科学研究委员会项目(编号1463/P03/2002/22)的负责人，该项目题为“ThCr2Si2型稀土化合物中晶体对称性的影响”。计划于2002年12月31日结束。同时，他与R.J. radwazynski教授(1996-2006)在固态物理中心工作，发表了大约30篇关于材料中的晶体场(CEF)和自旋轨道耦合(SO)效应的论文。与此同时，R. Michalski创建了两个免费的计算包:BIREC(稀土化合物的基本相互作用)和3d离子的CEF (3d离子的晶体电场)，以模拟精细的电子结构，并检查这种结构对固体性质的影响，作为温度的函数。2006年至2011年，R. Michalski与一家咨询公司合作，为行业研究项目和创新技术部署提供服务。在此期间，他发明了一些商业技术，并在欧盟和美国申请了5项专利。 In 2012, he set up and worked for a Light Source Photometry Laboratory for MILOO Electronics. In 2008, R. Michalski started his own commercial scientific activity and developed a project co-financed by European Union resources of the regional development fund (UDA-POIG.01.04.00-12-069/10-00) entitled: “Creation of tools for comprehensive analysis of magnetic properties of elements”. The result of this project was an application called Atomic Matters, which simulates the influence of crystal lattice charge surroundings on any atom/ion from the periodic table (www.atomicmatters.eu). Atomic Matters is designed to calculate, simulate and visualize the most relevant properties of materials which are determined by the fine electronic structure of contained ions or atoms in defined conditions. After completing this project, R. Michalski lead a team of programmers in the creation of ATOMIC MATTERS MFA software. ATOMIC MATTERS MFA is an extension of Atomic Matters for magnetic phase transition simulation by self-consistent calculations according to Mean Field Approximation methodology. The synergy of both applications makes it possible to predict the macroscopic properties of materials in user-defined temperature region by using the physical properties of atomic electron systems under the influence of an external magnetic field. The visual form of the results of calculations (including full 3D interactive CEF potential visualization), intuitive interface and tools, and comparative data makes the application extremely efficient and easy for new users. The premiere presentation of ATOMIC MATTERS MFA software was at Thermag VII, the Seventh IIF-IIR International Conference on Magnetic Refrigeration at Room Temperature, Torino Italy, 11-14 September 2016. R. Michalski has managed and participated in about 20 scientific projects. He is has authored more than 40 articles published in international journals and conference proceedings.
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