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larmorfrq.html
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<!DOCTYPE html>
<html>
<head>
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<title>larmorfrq</title>
</head>
<body>
<header>
<ul>
<li><img src="img/eslogo42.png">
<li class="header-title">EasySpin
<li><a href="index.html">Documentation</a>
<li><a href="references.html">Publications</a>
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<section>
<div class="functitle">larmorfrq</div>
<p>
Larmor (ENDOR) frequency of nuclear spins.
</p>
<!-- ========================================================== -->
<div class="subtitle">Syntax</div>
<pre class="matlab">
freq = larmorfrq(Nucs,Fields)
</pre>
<!-- ========================================================== -->
<div class="subtitle">Description</div>
<p>
<code>larmorfrq</code> computes the Larmor frequencies (in MHz)
for the nuclear spins given in <code>Nucs</code> at magnetic fields
(in mT) given in <code>Fields</code>.
</p>
<p>
<code>Nucs</code> is either a cell array of nuclear isotope symbols
or a character array with a comma-separated list of nuclear isotope symbols,
e.g., <code>'14N'</code> or <code>{'14N','1H'}</code>
or <code>'63Cu,65Cu'</code>.
</p>
<p>
<code>Fields</code> is a vector of magnetic field values in mT,
e.g. <code>350</code> or <code>[350 365 380]</code> or
<code>1200:10:1300</code>.
</p>
<p>
<code>freq</code> contains the Larmor (ENDOR, NMR) frequencies in MHz.
Each column contains the frequencies of one nucleus.
</p>
<!-- ========================================================== -->
<div class="subtitle">Examples</div>
<p>
The ENDOR frequencies of the two naturally occurring
nitrogen isotopes at a typical X-band magnetic field value are
</p>
<pre class="matlab">
larmorfrq('14N,15N',350)
</pre>
<pre class="mloutput">
ans =
1.0772 1.5110
</pre>
<p>
The same result can be obtained by using a cell array instead of the
comma separated list of isotopes
</p>
<pre class="matlab">
larmorfrq({'14N','15N'},350)
</pre>
<pre class="mloutput">
ans =
1.0772 1.5110
</pre>
<p>
The ENDOR frequency of protons for a series of magnetic field values
can be obtained with
</p>
<pre class="matlab">
larmorfrq('1H',350:10:400)
</pre>
<pre class="mloutput">
ans =
14.9021
15.3279
15.7537
16.1794
16.6052
17.0310
</pre>
<!-- ========================================================== -->
<div class="subtitle">See also</div>
<p>
<a class="esf" href="nucabund.html">nucabund</a>,
<a class="esf" href="nucdata.html">nucdata</a>,
<a class="esf" href="nucgval.html">nucgval</a>,
<a class="esf" href="nucqmom.html">nucqmom</a>,
<a class="esf" href="nucspin.html">nucspin</a>
</p>
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