【摘要】 Ｔｉ：Ａｌ２Ｏ３晶体中的顺磁中心Ｔｉ３＋由于强烈的晶格自旋耦合而使其电子自旋共振（ＥＳＲ）吸收只有在液氦温度附近才能看到。本实验在液氮温度附近（９３Ｋ）记录到由许多强的吸收峰迭加于Ｔｉ３＋宽吸收线所组成的电子自旋共振谱。这些强吸收峰被认为是Ａｌ２Ｏ３基质中的Ｆｅ３＋，Ｍｎ２＋，Ｃｒ３＋，Ｍｏ３＋，Ｆｅ２＋，Ｃｏ２＋等杂质的共振吸收及Ｔｉ２＋３Ａ２ｇ基态的双量子跃迁造成的。更多还原

【Abstract】 Strong L-S coupling effect of the paramagnetic center Ti3+ ions in Ti:Al2O3 crystal allows the observation of electron spin resonance (ESR) absorption spectra of Ti3+ ions only at about the liquid helium temperature.Spectra with steep peaks of impruity ions superposed on the extremely broadened Ti3+ ion absorption lines have been observed at 93 K. Spin transitions occurring within the respective ground states of Fe3+,Mn2+, Cr3+,Mo3+,Fe2+,Co2+ etc.impurity ions and Ti2+ ions double- quantum transition,as well as Ti isotopes hyperfine splittings are assigned.更多还原