<div dir="ltr">Dear all,<div><br></div><div>I am using Wien16.1 and Wien17.1 to perform the FM+U calculations for CoAs. It turns out that the difference of the total energy is about 10 eV. In both calculations, I used the same struct file as following:</div><div><br></div><div><div>CoAs</div><div>P LATTICE,NONEQUIV.ATOMS: 2 62 Pnma</div><div>MODE OF CALC=RELA unit=ang</div><div> 9.988151 6.595147 11.101390 90.000000 90.000000 90.000000</div><div>ATOM -1: X=0.49800000 Y=0.25000000 Z=0.20030000</div><div> MULT= 4 ISPLIT= 8</div><div> -1: X=0.00200000 Y=0.75000000 Z=0.70030000</div><div> -1: X=0.50200000 Y=0.75000000 Z=0.79970000</div><div> -1: X=0.99800000 Y=0.25000000 Z=0.29970000</div><div>Co1 NPT= 781 R0=0.00005000 RMT= 2.24 Z: 27.0</div><div>LOCAL ROT MATRIX: 0.0000000 1.0000000 0.0000000</div><div> 0.0000000 0.0000000 1.0000000</div><div> 1.0000000 0.0000000 0.0000000</div><div>ATOM -2: X=0.30040000 Y=0.25000000 Z=0.58670000</div><div> MULT= 4 ISPLIT= 8</div><div> -2: X=0.19960000 Y=0.75000000 Z=0.08670000</div><div> -2: X=0.69960000 Y=0.75000000 Z=0.41330000</div><div> -2: X=0.80040000 Y=0.25000000 Z=0.91330000</div><div>As1 NPT= 781 R0=0.00005000 RMT= 2.13 Z: 33.0</div><div>LOCAL ROT MATRIX: 0.0000000 1.0000000 0.0000000</div><div> 0.0000000 0.0000000 1.0000000</div><div> 1.0000000 0.0000000 0.0000000</div><div> 8 NUMBER OF SYMMETRY OPERATIONS</div><div> 1 0 0 0.00000000</div><div> 0 1 0 0.00000000</div><div> 0 0 1 0.00000000</div></div><div><div> 1</div><div>-1 0 0 0.50000000</div><div> 0-1 0 0.00000000</div><div> 0 0 1 0.50000000</div><div> 2</div><div>-1 0 0 0.00000000</div><div> 0 1 0 0.50000000</div><div> 0 0-1 0.00000000</div><div> 3</div><div> 1 0 0 0.50000000</div><div> 0-1 0 0.50000000</div><div> 0 0-1 0.50000000</div><div> 4</div><div>-1 0 0 0.00000000</div><div> 0-1 0 0.00000000</div><div> 0 0-1 0.00000000</div><div> 5</div><div> 1 0 0 0.50000000</div><div> 0 1 0 0.00000000</div><div> 0 0-1 0.50000000</div></div><div><div> 6</div><div> 1 0 0 0.00000000</div><div> 0-1 0 0.50000000</div><div> 0 0 1 0.00000000</div><div> 7</div><div>-1 0 0 0.50000000</div><div> 0 1 0 0.50000000</div><div> 0 0 1 0.50000000</div><div> 8</div></div><div><br></div><div>
<span style="font-size:12pt;line-height:107%;font-family:"Times New Roman",serif;color:rgb(34,34,34);background:white">The k-point mesh was taken to be 11*17*10 and correspond (U-J) is 2 eV. However, the difference of the total energy of the<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"> AFM+U calculations for CoAs</span> <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:small;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Wien16.1 and Wien17.1</span> is almost zero.</span><br></div><div><span style="font-size:12pt;line-height:107%;font-family:"Times New Roman",serif;color:rgb(34,34,34);background:white"><br></span></div><div><span style="font-size:12pt;line-height:107%;font-family:"Times New Roman",serif;color:rgb(34,34,34);background:white">I felt very confused. Did anyone meet this kind of problem? Thanks a lot!</span></div><div><span style="font-size:12pt;line-height:107%;font-family:"Times New Roman",serif;color:rgb(34,34,34);background:white"><br></span></div><div><span style="font-size:12pt;line-height:107%;font-family:"Times New Roman",serif;color:rgb(34,34,34);background:white"><br></span></div><div><span style="font-size:12pt;line-height:107%;font-family:"Times New Roman",serif;color:rgb(34,34,34);background:white">Best,</span></div><div><span style="font-size:12pt;line-height:107%;font-family:"Times New Roman",serif;color:rgb(34,34,34);background:white">K. Wang</span></div></div>