Bosonic Spectral Function and the Electron-Phonon Interaction in HTSC Cuprates

<table>Measured spectral weight <svg height="14.7125" id="M871" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 62.737499 14.7125" width="62.737499" xmlns="http://www.w3.org/2000/svg">
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<tspan style="font-size: 12.50px; " x="0" y="0">(</tspan>
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<text transform="matrix(1,0,0,-1,-42.68,60.37)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑐</tspan>
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<text transform="matrix(1,0,0,-1,-38.11,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">,</tspan>
<tspan style="font-size: 12.50px; " x="5.2012482" y="0">𝑇</tspan>
<tspan style="font-size: 12.50px; " x="12.077898" y="0">)</tspan>
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</svg>(~<svg height="14.9" id="M872" style="vertical-align:-3.49493pt" version="1.1" viewbox="0 0 31.737499 14.9" width="31.737499" xmlns="http://www.w3.org/2000/svg">
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<text transform="matrix(1,0,0,-1,-71.95,63.61)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐴</tspan>
</text>
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<tspan style="font-size: 8.75px; " x="2.7831359" y="0">+</tspan>
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</g>
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</svg> in figures) for <svg height="14.9" id="M873" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 85.025002 14.9" width="85.025002" xmlns="http://www.w3.org/2000/svg">
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<g transform="translate(72,-60.08)">
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<text transform="matrix(1,0,0,-1,-62.65,60.22)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑐</tspan>
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<text transform="matrix(1,0,0,-1,-54.61,63.35)">
<tspan style="font-size: 12.50px; " x="0" y="0">≈</tspan>
<tspan style="font-size: 12.50px; " x="12.040389" y="0">1</tspan>
<tspan style="font-size: 12.50px; " x="18.291889" y="0">.</tspan>
<tspan style="font-size: 12.50px; " x="21.417639" y="0">2</tspan>
<tspan style="font-size: 12.50px; " x="27.66914" y="0">5</tspan>
<tspan style="font-size: 12.50px; " x="35.996136" y="0">e</tspan>
<tspan style="font-size: 12.50px; " x="41.54747" y="0">V</tspan>
</text>
</g>
</g>
</svg> in two underdoped <i>Bi</i>2212 (with <svg height="14.7125" id="M874" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 63.337502 14.7125" width="63.337502" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.7125)">
<g transform="translate(72,-60.23)">
<text transform="matrix(1,0,0,-1,-71.95,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑇</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.07,60.37)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑐</tspan>
</text>
<text transform="matrix(1,0,0,-1,-57.03,63.5)">
<tspan style="font-size: 12.50px; " x="0" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="12.027886" y="0">8</tspan>
<tspan style="font-size: 12.50px; " x="18.279387" y="0">8</tspan>
<tspan style="font-size: 12.50px; " x="26.618887" y="0">K</tspan>
</text>
</g>
</g>
</svg> and <svg height="14.8375" id="M875" style="vertical-align:-3.2316pt" version="1.1" viewbox="0 0 63.337502 14.8375" width="63.337502" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,14.8375)">
<g transform="translate(72,-60.13)">
<text transform="matrix(1,0,0,-1,-71.95,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑇</tspan>
</text>
<text transform="matrix(1,0,0,-1,-65.07,60.27)">
<tspan style="font-size: 8.75px; " x="0" y="0">𝑐</tspan>
</text>
<text transform="matrix(1,0,0,-1,-57.03,63.4)">
<tspan style="font-size: 12.50px; " x="0" y="0">=</tspan>
<tspan style="font-size: 12.50px; " x="12.027886" y="0">6</tspan>
<tspan style="font-size: 12.50px; " x="18.279387" y="0">6</tspan>
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</svg>). From [<a href="/journals/acmp/2010/423725/#B78">111</a>].</table>

Advances in Condensed Matter Physics

fig9

Figure 9

Figure 9: Bosonic Spectral Function and the Electron-Phonon Interaction in HTSC Cuprates 