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OPTICAL DETECTION OF SPIN RELAXATION PROCESSES IN THE TRIPLET STATE OF THE SELF TRAPPED EXCITON IN ALKALI HALIDES
| Content Provider | CiteSeerX |
|---|---|
| Author | Aegerter, M. Y. Mor, T. |
| Abstract | The transient response of the triplet self trapped exc~ton lumlnes-cence ~ntenslty to a pulsed m~crowave excitation has been measured for 1.3 K < T < h.2 K ~n NaC1, KC1, RbC1, KBr, RbBr and CsBr. The results are quantitatively explained w~th a theoretical model describing the spln relaxation phenomena as one phonon d~rect processes. Good agreement ~s obtained as a function of temperature and magnetic f~eld. The recomblnatlon of self trapped holes (V K centres) and conductlon electrons In pure alkalz halzdes leads among other processes to the observatlon of self trapped exclton (aTE) lumlnescence emlsslons. The STE, characte-rlzed as relaxed (V K + e-) centres are allgned along the |
| File Format | |
| Access Restriction | Open |
| Content Type | Text |
