*ARPES, Angle-resolved photoemission spectroscopy
*UPS, Ultraviolet photoelectron spectroscopy
*PES, Photoemission spectroscopy
*ZEKE, Zero electron kinetic energy spectroscopy
*AES, Auger electron spectroscopy
*EDS, Energy-dispersive X-ray spectroscopy, (EDX or EDXRF)
*PEEM, Photoelectron emission microscopy