<div dir="ltr">Hello Fernan,<div><br></div><div>you can try by defining thermal regions in the MD section, like</div><div><p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> TEMPERATURE 300.0</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><br></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> TEMP_KIND</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><br></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> &THERMAL_REGION</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> &DEFINE_REGION</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> TEMPERATURE 300</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> TEMP_TOL 100</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures">@include list_of_atoms.inc</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> &END</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> &DEFINE_REGION</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> TEMPERATURE 10000000</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> LIST 4211</span></p>
<p style="font-size: 11px; line-height: normal; font-family: Menlo;"><span style="font-variant-ligatures: no-common-ligatures"> &END</span></p><div><br></div><div>You need the TEMP_TOL though to keep the temperature of the subsection of atoms.</div><div>If I am not wrong, it is not possible to set a proper thermostat for one defined region alone.</div><div><br></div><div>Kind regards</div><div>Marcella</div><br>On Tuesday, November 8, 2016 at 12:53:45 PM UTC+1, Fernan Saiz wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;"><div dir="ltr">Hello,<br>I wonder if it could be possible to set two different temperatures for two groups of atoms that are in contact by a flat interface in cp2k.<br><br>Thanks,<br>Fernan Saiz, Ph.D.<br>Department of Chemistry<br>Imperial College London<br><br></div></blockquote></div></div>