<div> Dear PWSCF users</div>
<div> I am doing calculate on the antiferromagnetic ground state of LiNiO2, I want to plot the energy as a function of fixed spin moment of Ni atom. </div>
<div> the following is my in put file for pwscf </div>
<div> </div>
<div> &system<br> ibrav = 0, nat=16 , ntyp= 4,<br> ecutwfc = 35.0, ecutrho = 200.0,<br> occupations='smearing', smearing='gaussian', degauss=0.02<br> nspin=2,constrained_magnetization='atomic',<br>
starting_magnetization(1)= 0.0,<br>starting_magnetization(2)= 1.8,<br>starting_magnetization(3)=-1.8,<br>starting_magnetization(4)= 0.0,<br>lda_plus_u=.true.<br>Hubbard_U(1)=0.0<br>Hubbard_U(2)=3.0<br>Hubbard_U(3)=3.0<br>
Hubbard_U(4)=0.0<br> /</div>
<div> &electrons<br> diagonalization='david',<br> conv_thr = 1.0e-6,<br> mixing_beta = 0.5,<br> /<br>ATOMIC_SPECIES<br>Li <strong><font face="Verdana" color="#5c6a5c">6.914</font></strong> Li.pbe-n-mt_bw.UPF<br>
Ni1 <strong><font face="Verdana" color="#5c6a5c">58.6934</font></strong> Ni.pbe-n-van.UPF<br>Ni2 <strong><font face="Verdana" color="#5c6a5c">58.6934</font></strong> Ni.pbe-n-van.UPF<br>O 15.9994 O.pbe-van_bm.UPF</div>
<div> </div>
<div>and the output file gives </div>
<div> </div>
<div> ==============================================================================<br> atom number 5 relative position : -0.1652 0.2839 0.5083<br> charge : 2.373353<br> magnetization : 1.544423<br>
magnetization/charge: 0.650735<br> constrained moment : 1.800000<br> <br> ==============================================================================</div>
<div>the output file gives a magnetic moment of 1.5444 ,how should I do to make the calculation converge to the starting_magnetization 1.8 ? </div>
<div> </div>
<div>I change the starting_magnetization(2) and starting_magnetization(3) from 1.8 to 0.8 , then I will get the E(m) curve. how should I do , does anyone give </div>
<div>a suggestion ?<br>-- <br>Sincerely Y. M. Qian <br>Lab.of Condensed Matter Theory and Materials Computation <br>Institute of Physics <br>Chinese Academy of Sciences<br>Tel: + 8610 8264 9147<br><a href="mailto:E-Mail%3Ayuminqian@gmail.com">E-Mail:yuminqian@gmail.com</a> <br>
P.O.Box 603 Beijing 100190<br>China <br><br></div>