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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 6: Semiconductors and Nano Physics"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 6.1: Resistivity_of_intrinsic_semiconductor_at_300_K.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"// Scilab Code Ex6.1:: Page-6.19 (2009)\n",
+"clc; clear;\n",
+"T = 300;    // Temperature of pure semiconductor, K\n",
+"n_i = 2.5e+019; // Intrinsic carrier density, per metre square\n",
+"e = 1.6e-019;   // Charge on an electron, C\n",
+"mu_e = 0.39;    // Mobility of electrons, Sq.m/V/s\n",
+"mu_h = 0.19;    // Mobility of holes, Sq.m/V/s\n",
+"sigma_i = e*n_i*(mu_e+mu_h);    // Conductivity of intrinsic semiconductor at 300 K, mho/m\n",
+"rho_i = 1/sigma_i;  // Resistivity of intrinsic semiconductor at 300 K, ohm-m\n",
+"\n",
+"printf('\nThe resistivity of intrinsic semiconductor at 300 K = %4.2f ohm-m', rho_i);\n",
+"\n",
+"// Result \n",
+"// The resistivity of intrinsic semiconductor at 300 K = 0.43 ohm-m "
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 6.2: Velocity_of_electron_at_Fermi_level.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"// Scilab Code Ex6.2: : Page-6.19 (2009)\n",
+"clc; clear;\n",
+"e = 1.6e-019;   // Energy equivalent of 1 eV, J/eV\n",
+"E_F = 2.0*e;    // Fermi level of Po, J\n",
+"m = 9.1e-031;   // Mass of an electron, kg\n",
+"// As E_F = 1/2*m*v^2, solving for v\n",
+"v = sqrt(2*E_F/m);    // Velocity of electron at Fermi level, m/s    \n",
+"printf('\nThe Velocity of electron at Fermi level = %4.2e m/s', v);\n",
+"\n",
+"// Result \n",
+"// The Velocity of electron at Fermi level = 8.39e+05 m/s "
+   ]
+   }
+],
+"metadata": {
+		  "kernelspec": {
+		   "display_name": "Scilab",
+		   "language": "scilab",
+		   "name": "scilab"
+		  },
+		  "language_info": {
+		   "file_extension": ".sce",
+		   "help_links": [
+			{
+			 "text": "MetaKernel Magics",
+			 "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
+			}
+		   ],
+		   "mimetype": "text/x-octave",
+		   "name": "scilab",
+		   "version": "0.7.1"
+		  }
+		 },
+		 "nbformat": 4,
+		 "nbformat_minor": 0
+}