1139 1
2
3# cutoff and sigmas are in units of Angstroms
4# epsilon are in units of Electron Volts
5
6#Species_i   # Species_j   # cutoff        # epsilon       # sigma
7
8H            H             2.2094300       4.4778900       0.5523570
9He           He            1.9956100       0.0009421       0.4989030
10Li           Li            9.1228000       1.0496900       2.2807000
11Be           Be            6.8421000       0.5729420       1.7105300
12B            B             6.0581100       2.9670300       1.5145300
13C            C             5.4166600       6.3695300       1.3541700
14N            N             5.0603000       9.7537900       1.2650800
15O            O             4.7039500       5.1264700       1.1759900
16F            F             4.0625000       1.6059200       1.0156200
17Ne           Ne            4.1337700       0.0036471       1.0334400
18Na           Na            11.8311000      0.7367450       2.9577800
19Mg           Mg            10.0493000      0.0785788       2.5123300
20Al           Al            8.6239000       2.7006700       2.1559700
21Si           Si            7.9111800       3.1743100       1.9778000
22P            P             7.6260900       5.0305000       1.9065200
23S            S             7.4835500       4.3692700       1.8708900
24Cl           Cl            7.2697300       4.4832800       1.8174300
25Ar           Ar            7.5548200       0.0123529       1.8887100
26K            K             14.4682000      0.5517990       3.6170500
27Ca           Ca            12.5439000      0.1326790       3.1359600
28Sc           Sc            12.1162000      1.6508000       3.0290600
29Ti           Ti            11.4035000      1.1802700       2.8508800
30V            V             10.9046000      2.7524900       2.7261500
31Cr           Cr            9.9067900       1.5367900       2.4767000
32Mn           Mn            9.9067900       0.5998880       2.4767000
33Fe           Fe            9.4078900       1.1844200       2.3519700
34Co           Co            8.9802600       1.2776900       2.2450600
35Ni           Ni            8.8377200       2.0757200       2.2094300
36Cu           Cu            9.4078900       2.0446300       2.3519700
37Zn           Zn            8.6951700       0.1915460       2.1737900
38Ga           Ga            8.6951700       1.0642000       2.1737900
39Ge           Ge            8.5526300       2.7017100       2.1381600
40As           As            8.4813600       3.9599000       2.1203400
41Se           Se            8.5526300       3.3867700       2.1381600
42Br           Br            8.5526300       1.9706300       2.1381600
43Kr           Kr            8.2675400       0.0173276       2.0668900
44Rb           Rb            15.6798000      0.4682650       3.9199500
45Sr           Sr            13.8980000      0.1339230       3.4745100
46Y            Y             13.5417000      2.7597500       3.3854200
47Zr           Zr            12.4726000      3.0520100       3.1181500
48Nb           Nb            11.6886000      5.2782000       2.9221500
49Mo           Mo            10.9759000      4.4749900       2.7439700
50Tc           Tc            10.4770000      3.3815900       2.6192400
51Ru           Ru            10.4057000      1.9617200       2.6014200
52Rh           Rh            10.1206000      2.4058200       2.5301500
53Pd           Pd            9.9067900       1.3709700       2.4767000
54Ag           Ag            10.3344000      1.6497600       2.5836100
55Cd           Cd            10.2632000      0.0377447       2.5657900
56In           In            10.1206000      0.8113140       2.5301500
57Sn           Sn            9.9067900       1.9005700       2.4767000
58Sb           Sb            9.9067900       3.0882800       2.4767000
59Te           Te            9.8355200       2.6312300       2.4588800
60I            I             9.9067900       1.5393800       2.4767000
61Xe           Xe            9.9780700       0.0238880       2.4945200
62Cs           Cs            17.3903000      0.4166420       4.3475900
63Ba           Ba            15.3235000      1.9000000       3.8308600
64La           La            14.7533000      2.4996100       3.6883200
65Ce           Ce            14.5395000      2.5700800       3.6348700
66Pr           Pr            14.4682000      1.2994600       3.6170500
67Nd           Nd            14.3257000      0.8196050       3.5814100
68Pm           Pm            14.1831000      3.2413400       3.5457800
69Sm           Sm            14.1118000      0.5211220       3.5279600
70Eu           Eu            14.1118000      0.4299180       3.5279600
71Gd           Gd            13.9693000      2.0995600       3.4923200
72Tb           Tb            13.8267000      1.3999900       3.4566900
73Dy           Dy            13.6842000      0.6900550       3.4210500
74Ho           Ho            13.6842000      0.6900550       3.4210500
75Er           Er            13.4704000      0.7387660       3.3676000
76Tm           Tm            13.5417000      0.5211220       3.3854200
77Yb           Yb            13.3278000      0.1303990       3.3319600
78Lu           Lu            13.3278000      1.4331500       3.3319600
79Hf           Hf            12.4726000      3.3608600       3.1181500
80Ta           Ta            12.1162000      4.0034300       3.0290600
81W            W             11.5460000      6.8638900       2.8865100
82Re           Re            10.7621000      4.4387100       2.6905100
83Os           Os            10.2632000      4.2625300       2.5657900
84Ir           Ir            10.0493000      3.7028700       2.5123300
85Pt           Pt            9.6929800       3.1401000       2.4232400
86Au           Au            9.6929800       2.3058000       2.4232400
87Hg           Hg            9.4078900       0.0454140       2.3519700
88Tl           Tl            10.3344000      0.5770870       2.5836100
89Pb           Pb            10.4057000      0.8589880       2.6014200
90Bi           Bi            10.5482000      2.0798700       2.6370600
91Po           Po            9.9780700       1.8995300       2.4945200
92At           At            10.6908000      1.3854420       2.6727000
93Rn           Rn            10.6908000      0.0214992       2.6727000
94Fr           Fr            18.5307000      0.3749778       4.6326700
95Ra           Ra            15.7511000      1.7100000       3.9377700
96Ac           Ac            15.3235000      2.2496490       3.8308600
97Th           Th            14.6820000      2.3130720       3.6705000
98Pa           Pa            14.2544000      1.1695140       3.5635900
99U            U             13.9693000      0.7376445       3.4923200
100Np           Np            13.5417000      2.9172060       3.3854200
101Pu           Pu            13.3278000      0.4690098       3.3319600
102Am           Am            12.8289000      0.3869262       3.2072400
103Cm           Cm            12.0450000      1.8896040       3.0112400
104Bk           Bk            11.9737000      1.2599910       2.9934200
105Cf           Cf            11.9737000      0.6210495       2.9934200
106Es           Es            11.7599000      0.6210495       2.9399700
107Fm           Fm            11.9024000      0.6648894       2.9756000
108Md           Md            12.3300000      0.4690098       3.0825100
109No           No            12.5439000      0.1173591       3.1359600
110Lr           Lr            11.4748000      1.2898350       2.8686900
111Rf           Rf            11.1897000      3.0247740       2.7974200
112Db           Db            10.6195000      3.6030870       2.6548800
113Sg           Sg            10.1919000      6.1775010       2.5479700
114Bh           Bh            10.0493000      3.9948390       2.5123300
115Hs           Hs            9.5504300       3.8362770       2.3876100
116Mt           Mt            9.1940700       3.3325830       2.2985200
117Ds           Ds            9.1228000       2.8260900       2.2807000
118Rg           Rg            8.6239000       2.0752200       2.1559700
119Cn           Cn            8.6951700       0.0408726       2.1737900
120Nh           Nh            9.6929800       0.5193783       2.4232400
121Fl           Fl            10.1919000      0.7730892       2.5479700
122Mc           Mc            11.5460000      1.8718830       2.8865100
123Lv           Lv            12.4726000      1.7095770       3.1181500
124Ts           Ts            11.7599000      1.2468978       2.9399700
125Og           Og            11.1897000      0.0193493       2.7974200
126electron     electron      4.0             1.0             1.0
127user01       user01        4.0             1.0             1.0
128user02       user02        4.0             1.0             1.0
129user03       user03        4.0             1.0             1.0
130user04       user04        4.0             1.0             1.0
131user05       user05        4.0             1.0             1.0
132user06       user06        4.0             1.0             1.0
133user07       user07        4.0             1.0             1.0
134user08       user08        4.0             1.0             1.0
135user09       user09        4.0             1.0             1.0
136user10       user10        4.0             1.0             1.0
137user11       user11        4.0             1.0             1.0
138user12       user12        4.0             1.0             1.0
139user13       user13        4.0             1.0             1.0
140user14       user14        4.0             1.0             1.0
141user15       user15        4.0             1.0             1.0
142user16       user16        4.0             1.0             1.0
143user17       user17        4.0             1.0             1.0
144user18       user18        4.0             1.0             1.0
145user19       user19        4.0             1.0             1.0
146user20       user20        4.0             1.0             1.0
147
148#
149# CDDL HEADER START
150#
151# The contents of this file are subject to the terms of the Common Development
152# and Distribution License Version 1.0 (the "License").
153#
154# You can obtain a copy of the license at
155# http://www.opensource.org/licenses/CDDL-1.0.  See the License for the
156# specific language governing permissions and limitations under the License.
157#
158# When distributing Covered Code, include this CDDL HEADER in each file and
159# include the License file in a prominent location with the name LICENSE.CDDL.
160# If applicable, add the following below this CDDL HEADER, with the fields
161# enclosed by brackets "[]" replaced with your own identifying information:
162#
163# Portions Copyright (c) [yyyy] [name of copyright owner]. All rights reserved.
164#
165# CDDL HEADER END
166#
167
168#
169# Copyright (c) 2015, Regents of the University of Minnesota.
170# All rights reserved.
171#
172# Contributors:
173#    Ryan S. Elliott
174#    Andrew Akerson
175#
176
177
178# * Sigma parameters are set to (2^{-1/6})*r_0, where r_0 is the atomic
179#   covalent radius.  Covalent radii for elements 1--96 were taken from Wolfram
180#   Mathematica's `ElementData["CovalentRadius"]' command.  Covalent radii for
181#   elements 97--118 were taken from Fig. 3 of the article Pyykko, M. Atsumi,
182#   J. Chem. Eur. J. 15 (2009) 12770.
183#
184# * Epsilon parameters are set to the bond dissociation energy.  Bond
185#   dissociation energies for elements 1--55, 57--60, and 61--84 were taken
186#   from the CRC Handbook of Chemistry and Physics, 91st Edition,
187#   Ed. W.H. Haynes, 2010. (as posted here:
188#   http://staff.ustc.edu.cn/~luo971/2010-91-CRC-BDEs-Tables.pdf)
189#
190#   The value (cohesive energy, in this case) for element 56 was obtained from
191#   p. 50 in Charles Kittel. Introduction to Solid State Physics, 8th
192#   edition. Hoboken, NJ: John Wiley & Sons, Inc, 2005.
193#
194#   The bond dissociation energy value for element 61 was obtained from
195#   "Interpolation scheme for the cohesive energies for the lanthanides and
196#   actinides" Borje Johansson and Anders Rosengren, Phys. Rev. B 11, 1367
197#   (1975).
198#
199#   The bond dissociation energies for elements 85--118 were not found in the
200#   literature.  Thus, the values used here are approximated by subtracting 10%
201#   from the value for the element in the same Group (column) and previous
202#   Period (row) of the periodic table.
203#
204# * Cutoff parameters are set to 4.0*sigma.  This corresponds to a cutoff
205#   energy of approximately epsilon/1024.
206#
207# * Lorentz-Berthelot mixing rules are used for interactions between unlike
208#   particles.  Each interaction potential is shifted to zero energy at its
209#   cutoff distance.
210