据法国格勒诺布尔极低温度研究中心的ManuelN(?)ez Regueiro等报道,在大气压下为窄频带半导体的固态C_(60)在极高压下会发生突然的相变,成为绝缘状态。科学家们指出,使半导体成为金属质的方法之一是加压。例如,硅在极高压下会变成超导体。相反地,石墨在高压下,由于碳轨道的杂化从Sp~2变为Sp~3,而变成金刚石(一种高共价固体)。据报道,当压力从 According to Manuel N. Ez Regueiro et al. At Grenoble’s Center for Extremely Low Temperature Research, sudden solid phase transformation of C_ (60), a narrow-band semiconductor at atmospheric pressure, occurs at very high pressures and becomes insulated. Scientists point out that one of the ways to make semiconductors into metals is to pressurize. For example, silicon becomes a superconductor at very high pressures. In contrast, graphite becomes diamond (a highly covalent solid) under high pressure due to the change of the carbon orbital from Sp ~ 2 to Sp ~ 3. It is reported that when pressure from