Dear Forum, <div><br /></div><div>I am currently , trying to provide an starting electronic configuration to enforce the initial occupation of electrons in Fe. </div><div><br /></div><div>I came accross with the option </div><div>ENFORCE_OCCUPATION for DFT+U </div><div><br /></div><div>I was wondering if is possible to provide an initial occupation for the d orbitals in Fe </div><div>using the option </div><div><br /></div><div><br /></div><div><span style="box-sizing: border-box; font-weight: 700; margin: 0px 0px 6px; display: table; font-size: 14.4px; line-height: normal; background: rgb(231, 242, 250); color: rgb(41, 128, 185); border-top: 3px solid rgb(106, 176, 222); padding: 6px; position: relative; font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif;"><span style="box-sizing: border-box; font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", Courier, monospace; color: rgb(0, 0, 0);"><span style="box-sizing: border-box;">ORBITALS</span></span><em style="box-sizing: border-box; display: inline-block; padding-right: 8px; max-width: 100%;"><span style="box-sizing: border-box;"><span style="box-sizing: border-box;">:</span></span><span style="box-sizing: border-box;"> </span><span style="box-sizing: border-box;">integer</span></em><em style="box-sizing: border-box; display: inline-block; padding-right: 8px; max-width: 100%;"><span style="box-sizing: border-box;"></span><span style="box-sizing: border-box;"><span style="box-sizing: border-box;">=</span></span><span style="box-sizing: border-box;"> </span><span style="box-sizing: border-box;">0</span></em><a href="https://manual.cp2k.org/trunk/CP2K_INPUT/FORCE_EVAL/SUBSYS/KIND/DFT_PLUS_U/ENFORCE_OCCUPATION.html#CP2K_INPUT.FORCE_EVAL.SUBSYS.KIND.DFT_PLUS_U.ENFORCE_OCCUPATION.ORBITALS" title="Link to this definition" style="box-sizing: border-box; color: rgb(64, 64, 64); cursor: pointer; display: inline-block; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-size-adjust: none; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-weight: normal; font-stretch: normal; line-height: 1; font-family: FontAwesome; text-rendering: auto; opacity: 0; margin-left: 0.5em;"></a></span><span style="box-sizing: border-box; margin: 0px 0px 12px 24px; line-height: 24px;"><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px 0px 12px;"><span style="box-sizing: border-box; font-weight: 700;">Aliases:</span> M</p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px 0px 12px;"><span style="box-sizing: border-box; font-weight: 700;">Usage:</span> <em style="box-sizing: border-box;">ORBITALS 0 +1 -1</em></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><br /></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><br /></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;">For example if i would like a particular occupation like:</p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); margin-top: 0pt; margin-bottom: 0pt; margin-left: 0in; direction: ltr; unicode-bidi: embed; word-break: normal;"><span style="font-size: 12pt; font-family: Calibri; color: black;">spin up dz2=
1 </span><span style="font-size: 12pt; font-family: Calibri; color: black;">dxz</span><span style="font-size: 12pt; font-family: Calibri; color: black;">= 1, </span><span style="font-size: 12pt; font-family: Calibri; color: black;">dyz</span><span style="font-size: 12pt; font-family: Calibri; color: black;">=
1, dx2-y2= 1 </span><span style="font-size: 12pt; font-family: Calibri; color: black;">dxy</span><span style="font-size: 12pt; font-family: Calibri; color: black;">= 0, </span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;">
</p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); margin-top: 0pt; margin-bottom: 0pt; margin-left: 0in; direction: ltr; unicode-bidi: embed; word-break: normal;"><span style="font-size: 12pt; font-family: Calibri; color: black;">spin down </span><span style="font-size: 12pt; font-family: Calibri; color: black;">dz2= 0 </span><span style="font-size: 12pt; font-family: Calibri; color: black;">dxz</span><span style="font-size: 12pt; font-family: Calibri; color: black;">= 0, </span><span style="font-size: 12pt; font-family: Calibri; color: black;">dyz</span><span style="font-size: 12pt; font-family: Calibri; color: black;">= 1, dx2-y2= 1 </span><span style="font-size: 12pt; font-family: Calibri; color: black;">dxy</span><span style="font-size: 12pt; font-family: Calibri; color: black;">= 0,</span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="box-sizing: border-box; font-size: 12.8px;"><br /></span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="box-sizing: border-box; font-size: 12.8px;">Like the control there is quantum espresso, starting_ns_eigenvalue </span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="background-color: rgb(255, 255, 153); color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: medium; font-weight: 700; text-wrap-mode: nowrap;"><br /></span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="color: rgba(0, 0, 0, 0.87); font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);">Is there any way to impose such starting occupation?</span><span style="background-color: rgb(255, 255, 153); color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: medium; font-weight: 700; text-wrap-mode: nowrap;"></span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="color: rgba(0, 0, 0, 0.87); font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);"><br /></span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="color: rgba(0, 0, 0, 0.87); font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);">Best</span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="color: rgba(0, 0, 0, 0.87); font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);"><br /></span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="color: rgba(0, 0, 0, 0.87); font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);">Andres Ortega-Guerrero</span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="color: rgba(0, 0, 0, 0.87); font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);">nanotech@surfaces </span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="color: rgba(0, 0, 0, 0.87); font-family: Roboto, RobotoDraft, Helvetica, Arial, sans-serif; font-size: 14px; background-color: rgb(255, 255, 255);">EMPA</span></p><p style="color: rgb(64, 64, 64); font-family: Lato, proxima-nova, "Helvetica Neue", Arial, sans-serif; font-size: 16px; background-color: rgb(252, 252, 252); box-sizing: border-box; line-height: 24px; margin: 0px;"><span style="background-color: rgb(255, 255, 153); color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: medium; font-weight: 700; text-wrap-mode: nowrap;"><br /></span></p><p style="box-sizing: border-box; line-height: 24px; margin: 0px;"><br /></p></span></div>
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