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diff --git a/Solid_state_physics/Chapter_10.ipynb b/Solid_state_physics/Chapter_10.ipynb new file mode 100755 index 00000000..ac36fbe7 --- /dev/null +++ b/Solid_state_physics/Chapter_10.ipynb @@ -0,0 +1,181 @@ +{ + "metadata": { + "name": "" + }, + "nbformat": 3, + "nbformat_minor": 0, + "worksheets": [ + { + "cells": [ + { + "cell_type": "heading", + "level": 1, + "metadata": {}, + "source": [ + "Chapter 10: Superconductivity" + ] + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 10.1, Page number 10.3" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "#Variable declaration\n", + "Tc = 3.7 #critical temperature(K)\n", + "Hc_o = 0.0306 #critical field(T)\n", + "T = 2 #temperature(K)\n", + "\n", + "#Calculation\n", + "Hc_2 = Hc_o*(1-((T/Tc)**2))\n", + "\n", + "#Result\n", + "print \"Critical field at 2K is\",round(Hc_2,5),\"T\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Critical field at 2K is 0.02166 T\n" + ] + } + ], + "prompt_number": 1 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 10.2, Page number 10.5" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "from math import pi\n", + "\n", + "#Variable declaration\n", + "T = 4.2 #temperature(K)\n", + "Tc = 7.18 #critical temperature(K)\n", + "Ho = 6.5*10**4 #A/m\n", + "d = 1*10**-3 #diameter(m)\n", + "\n", + "#Calculations\n", + "Hc = Ho*(1-((T/Tc)**2))\n", + "r = d/2\n", + "ic = 2*pi*r*Hc\n", + "\n", + "#Result\n", + "print \"Critical current =\",round(ic,2),\"A\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Critical current = 134.33 A\n" + ] + } + ], + "prompt_number": 2 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 10.3, Page number 10.12" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "import math \n", + "\n", + "#Variable declaration\n", + "T = 3.5 #temperature(K)\n", + "lamda_t = 750 #penetration depth at T(A)\n", + "Tc = 4.12 #K\n", + "\n", + "#Calculation\n", + "lamda_o = lamda_t*math.sqrt((1-((T/Tc)**4)))\n", + "\n", + "#Result\n", + "print \"Penetration depth at 4.12K is\",round(lamda_o,1),\"A\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Penetration depth at 4.12K is 519.2 A\n" + ] + } + ], + "prompt_number": 7 + }, + { + "cell_type": "heading", + "level": 2, + "metadata": {}, + "source": [ + "Example 10.4, Page number 10.13" + ] + }, + { + "cell_type": "code", + "collapsed": false, + "input": [ + "\n", + "import math\n", + "\n", + "#Variable declaration\n", + "T1 = 3 #temperature(K)\n", + "lamda_t1 = 396. #penetration depth at T1(A)\n", + "T2 = 7.1 #temperature(K)\n", + "lamda_t2 = 1730. #penetration depth at T2(A)\n", + "\n", + "#Calculations\n", + "x = lamda_t2**2/lamda_t1**2\n", + "Tc = math.sqrt(math.sqrt((-T1**4+(x*(T2**4)))/(x-1)))\n", + "\n", + "#Result\n", + "print \"Critical temperature =\",round(Tc,3),\"K\"" + ], + "language": "python", + "metadata": {}, + "outputs": [ + { + "output_type": "stream", + "stream": "stdout", + "text": [ + "Critical temperature = 7.193 K\n" + ] + } + ], + "prompt_number": 18 + } + ], + "metadata": {} + } + ] +}
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