GenX:: an extensible X-ray reflectivity refinement program utilizing differential evolution

被引:812
作者
Bjorck, Matts [1 ]
Andersson, Gabriella [1 ]
机构
[1] Uppsala Univ, Dept Phys, SE-75121 Uppsala, Sweden
关键词
D O I
10.1107/S0021889807045086
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
GenX is a versatile program using the differential evolution algorithm for fitting X-ray and neutron reflectivity data. It utilizes the Parratt recursion formula for simulating specular reflectivity. The program is easily extensible, allowing users to incorporate their own models into the program. This can be useful for fitting data from other scattering experiments, or for any other minimization problem which has a large number of input parameters and/or contains many local minima, where the differential evolution algorithm is suitable. In addition, GenX manages to fit an arbitrary number of data sets simultaneously. The program is released under the GNU General Public License.
引用
收藏
页码:1174 / 1178
页数:5
相关论文
共 19 条
[1]   Structure of Fe-Co/Pt(001) superlattices:: a realization of tetragonal Fe-Co alloys [J].
Andersson, G. ;
Bjorck, M. ;
Lidbaum, H. ;
Sanyal, B. ;
Chacon, C. ;
Zlotea, C. ;
Valizadeh, S. .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (01)
[2]   POLARIZED NEUTRON REFLECTION AS A PROBE OF MAGNETIC-FILMS AND MULTILAYERS [J].
BLUNDELL, SJ ;
BLAND, JAC .
PHYSICAL REVIEW B, 1992, 46 (06) :3391-3400
[3]   GLANCING-INCIDENCE X-RAY-FLUORESCENCE OF LAYERED MATERIALS [J].
DEBOER, DKG .
PHYSICAL REVIEW B, 1991, 44 (02) :498-511
[4]   GENEFP:: a full-profile fitting program for X-ray powder patterns using the genetic algorithm [J].
Feng, Zhen Jie ;
Dong, Cheng .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2006, 39 :615-617
[5]   THE CORRECTION OF GEOMETRICAL FACTORS IN THE ANALYSIS OF X-RAY REFLECTIVITY [J].
GIBAUD, A ;
VIGNAUD, G ;
SINHA, SK .
ACTA CRYSTALLOGRAPHICA SECTION A, 1993, 49 :642-648
[6]   X-RAY INTERACTIONS - PHOTOABSORPTION, SCATTERING, TRANSMISSION, AND REFLECTION AT E=50-30,000 EV, Z=1-92 [J].
HENKE, BL ;
GULLIKSON, EM ;
DAVIS, JC .
ATOMIC DATA AND NUCLEAR DATA TABLES, 1993, 54 (02) :181-342
[7]   Grazing-incidence x-ray scattering from stepped interfaces in AlAs/GaAs superlattices [J].
Kondrashkina, EA ;
Stepanov, SA ;
Opitz, R ;
Schmidbauer, M ;
Kohler, R ;
Hey, R ;
Wassermeier, M ;
Novikov, DV .
PHYSICAL REVIEW B, 1997, 56 (16) :10469-10482
[8]   MICROSCOPIC STRUCTURE OF INTERFACES IN SI1-XGE/SI HETEROSTRUCTURES AND SUPERLATTICES STUDIED BY X-RAY-SCATTERING AND FLUORESCENCE YIELD [J].
MING, ZH ;
KROL, A ;
SOO, YL ;
KAO, YH ;
PARK, JS ;
WANG, KL .
PHYSICAL REVIEW B, 1993, 47 (24) :16373-16381
[9]   Analysis of grazing incidence X-ray diffuse scatter from Co-Cu multilayers [J].
Pape, I ;
Hase, TPA ;
Tanner, BK ;
Wormington, M .
PHYSICA B, 1998, 253 (3-4) :278-289
[10]   SURFACE STUDIES OF SOLIDS BY TOTAL REFLECTION OF X-RAYS [J].
PARRATT, LG .
PHYSICAL REVIEW, 1954, 95 (02) :359-369