Measuring shape anisotropy involves a variety of techniques:
1. Electron Microscopy: Techniques like transmission electron microscopy (TEM) and scanning electron microscopy (SEM) are commonly used to visualize the shape and size of nanomaterials. 2. Spectroscopy: Methods such as X-ray diffraction (XRD) and Raman spectroscopy can provide insights into the structural anisotropy of nanomaterials. 3. Magnetic Measurements: For magnetic nanoparticles, techniques like vibrating sample magnetometry (VSM) and superconducting quantum interference device (SQUID) magnetometry are used to measure magnetic anisotropy.