使用期限*
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原产地奥地利
介质下载
适用平台windows
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Wien2k 密度泛函理论计算固体的电子结构软件
计算参数
能力带和态密度
电子密度和自旋密度、x射线结构因子
Baders的分子中的原子概念
总能量、力、平衡几何构型、结构优化、分子动力学
K.Parlinski's PHONON的接口Phonons
电场梯度、同质异能位移、**精细场
自旋较化(铁磁或反铁磁结构),自旋轨道耦合
x射线发射和吸收光谱,电子能谱
光学性质
费米表面
LDA, GGA, meta-GGA, LDA+U,轨道较化
中心和非中心对称的细胞,内置230个空间群
We proudly announce that the
3000th license of WIEN2k
was granted free of charge to
Dr. Daniel Ion Bilc, Babeș-Bolyai University, Romania
We would also like to take the opportunity to thank all WIEN2k users for their continuous interest and the lively discussions on the WIEN2k-mailinglist. In particular we want to acknowledge all who have contributed to this package. This international cooperation is largely responsible for the success of WIEN2k.
sequential mode, k-parallel mode (without MPI, slow network with common NFS), massively parallel MPI mode (shared memory or Infiniband)
Energy bands and density of states
electron densities and spin densities, x-ray structure factors, potentials, STM and AFM simulations
Wien2k使用密度泛函理论计算固体的电子结构。它基于键结构计算准确的方案——完全势能(线性)增广平面波((L)APW)+局域轨道(lo)方法。在密度泛函中可以使用局域(自旋)密度近似(LDA)或广义梯度近似(GGA)。它已被近3000个用户组授权,在Google scholar上有大约12000个引用。
Wien2k包含很多Frotran90立程序,通过C-脚本连接到一起。您不仅可以在任何浏览器和w2web界面上运行Wien2k,也可以输入的短命令来运行。
系统要求
The program is written in FORTRAN90 and runs under Unix on practically all platforms (Linux-PCs, IBM RS6000, HP, SGI, COMPAC-alpha, SUNs).
The most efficient platform changes rapidly with time, although we expect that the best price/performance ratio will also in future be some Linux PC based on an Intel architecture (for current benchmark tests click here ). Install the Intel ifort compiler + Intels mkl-libarary (there is a free non-commercial version or the goto-blas .
It requires at least 128 MB memory for small systems (to about 10 atoms per unit cell) or more for larger systems. At present we recommend a multicore CPU with 1-2GB memory / core and twice as much swap space (don't forget to configure the latter!). We have treated systems up to 100 atoms per unit cell on workstations with large memory (1-2 GB) and with more than 1000 atoms/cell on clusters with 64 - 1024 cores and fast network. 1 GB (or 10-1000GB for large cases) of disk space is required.
k-point parallelization is possible and highly efficient on a cluster of PCs (Gbit network is enough), provided a common NFS-file system is available and login (rsh or ssh) is configured properly.
A fine grain parallelization for a single k-point is also available. It requires fast communication (shared memory or fast networks (Infiniband), Gb Ethernet is not really sufficient), MPI, FFTW and Scalapack.
In order to use all options (including the graphical user interface or XCRYSDEN) the following public domain packages must be installed on your system: ghostview (+png support), gnuplot (+png support), acroread (or similar),(Netscape), Perl.
and the coefficients cn are determined by the Rayleigh-Ritz variational principle. The convergence of this basis set is controlled by a cutoff parameter RmtKmax= 6 - 9, where Rmt is the smallest atomic sphere radius in the unit cell and Kmax is the magnitude of the largest K vector.
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