A l X G a 1-X N SINGLE CRYSTAL AND ELECTROMAGNETIC WAVE TRANSMISSION BODY

摘要

Affords an Al x Ga 1- x N single crystal suitable as an electromagnetic wave transmission body, and an electromagnetic wave transmission body that includes the Al x Ga 1- x N single crystals. The Al x Ga 1- x N (0 < x ‰¤1) single crystal (2) has a dielectric loss tangent of 5 × 10 -3 or lower with a radio frequency signal of at least either 1 MHz or 1 GHz having been applied to the crystal at an atmospheric temperature of 25°C. An electromagnetic wave transmission body (4) includes the Al x Ga 1- x N single crystal, which has a major surface (2 m ), wherein the Al x Ga 1- x N single crystal (2) has a dielectric loss tangent of 5 × 10 -3 or lower with an RF signal of at least either 1 MHz or 1 GHz having been applied thereto at an atmospheric temperature of 25°C.