1.   If the host is a single crystal, the spread of frequencies is not very great.

2.   Sample preparation Single crystal samples with polished surfaces give the best results.

3.   The instruments are designed for high precision scientific applications including single crystal calorimetry, laser induced desorption and flash temperature gas evolution.

4.   The silicon ingots are highly perfect single crystals and on the atomic scale the cutting has to proceed through breaking bonds.

5.   The technique produces spectra which sometimes include several peaks for a single crystal.

6.   ...a single crystal of silicon.

7.   If these restrictions to free movement are reduced and a polymer is allowed to crystallize from a dilute solution, it is possible to obtain well-defined single crystals.

8.   Although small, these single crystals can be studied using an electron microscope.

9.   As the structure is not a single crystal, the sizes found vary from somewhat greater than a crystallite to diameters of a few millimetres.