<?xml version="1.0"?> <!DOCTYPE ipe SYSTEM "ipe.dtd"> <ipe version="70005" creator="Ipe 7.1.2"> <info created="D:20130513204549" modified="D:20130617212814"/> <ipestyle name="cust"> <symbol name="arrow/fnormal(spx)"> <path fill="black"> 0 0 m -1 0.333 l -1 -0.333 l h </path> </symbol> <pen name="heavier" value="0.8"/> <pen name="fat" value="1.2"/> <pen name="ultrafat" value="2"/> <symbolsize name="large" value="5"/> <symbolsize name="small" value="2"/> <symbolsize name="tiny" value="1.1"/> <arrowsize name="large" value="10"/> <arrowsize name="small" value="5"/> <arrowsize name="tiny" value="3"/> <dashstyle name="dashed" value="[4] 0"/> <dashstyle name="finedash" value="[2] 0"/> <textsize name="large" value="\large"/> <textsize name="small" value="\small"/> <textsize name="tiny" value="\tiny"/> <textsize name="Large" value="\Large"/> <textsize name="LARGE" value="\LARGE"/> <textsize name="huge" value="\huge"/> <textsize name="Huge" value="\Huge"/> <textsize name="footnote" 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color="0.7 0.7 1"/>  <stop offset="1" color="1 0.7 0.7"/> </gradient> <tiling name="falling" angle="-60" step="4" width="1"/> <tiling name="rising" angle="30" step="4" width="1"/> </ipestyle> <page> <layer name="alpha"/> <layer name="BBOX"/> <view layers="alpha BBOX" active="alpha"/> <path layer="alpha" fill="0.95"> 100 132 m 104 112 l 168 112 l 172 132 l h </path> <path fill="0.7 0.7 1"> 104 132 m 104 20 l 28 20 l 28 132 l h </path> <path matrix="1 0 0 1 -120 -644" fill="0.6 0.8 1"> 288 776 m 288 664 l 328 664 l 328 776 l h </path> <path fill="black" opacity="filled"> 208 72 m 208 20 l 168 20 l 168 72 l h </path> <path fill="black" opacity="filled"> 28 48 m 104 48 l 104 20 l 28 20 l </path> <path matrix="1 0 0 1 0 4" stroke="black" pen="ultrafat"> 4 100 m 4 100 l 4 100 l 4 100 l h </path> <path stroke="black" arrow="fnormal/normal"> 16 20 m 16 128 l </path> <path matrix="1 0 0 1 -104 -652" stroke="black" arrow="fnormal/normal"> 136 664 m 328 664 l </path> <text matrix="0 1 -1 0 796 -100" pos="160 784" stroke="black" type="label" width="30.884" height="6.815" depth="1.93" valign="baseline">Energy</text> <text matrix="1 0 0 1 -17.337 -673.875" transformations="translations" pos="101.337 719.875" stroke="black" type="label" width="18.515" height="6.808" depth="2.85" halign="right" valign="top">\textcolor[rgb]{0.3,0,0.3}{$E_{\rm F,s}$}</text> <text matrix="1 0 0 1 -88 -652" transformations="translations" pos="192 656" stroke="black" type="label" width="35.34" height="6.808" depth="0" valign="baseline">Position</text> <path matrix="1 0 0 1 -120 -648" stroke="black" dash="finedash"> 216 760 m 232 760 l </path> <path matrix="1 0 0 1 -56 -648" stroke="black" dash="finedash"> 216 760 m 232 760 l </path> <path matrix="1 0 0 1 -16 -688" stroke="black" dash="finedash"> 216 760 m 232 760 l </path> <text matrix="1 0 0 1 -124 -644" transformations="translations" pos="228 724" stroke="black" type="label" width="13.064" height="6.812" depth="1.49" halign="right" valign="baseline">$W_{\rm s}$</text> <text matrix="1 0 0 1 -60 -644" transformations="translations" pos="228 724" stroke="black" type="label" width="14.307" height="6.808" depth="2.85" valign="baseline">$W_{\rm p}$</text> <text matrix="1 0 0 1 -118 -770" transformations="translations" pos="184 792" stroke="black" type="label" width="29.943" height="6.926" depth="1.93" halign="center" valign="baseline">sample</text> <text matrix="1 0 0 1 -48 -770" transformations="translations" pos="184 792" stroke="black" type="label" width="33.486" height="4.289" depth="0" halign="center" valign="baseline">vacuum</text> <text matrix="1 0 0 1 -39 -55" transformations="translations" pos="256 112" stroke="black" type="label" width="26.807" height="6.808" depth="2.85" valign="baseline">$e\Delta V_{\rm sp}$</text> <text matrix="1 0 0 1 70.663 -649.875" transformations="translations" pos="101.337 719.875" stroke="black" type="label" width="19.759" height="6.808" depth="2.85" 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