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The E ⊗ e and T ⊗ t Jahn–Teller polarons

✍ Scribed by Yasutami Takada; Makoto Masaki

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
160 KB
Volume
838
Category
Article
ISSN
0022-2860

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✦ Synopsis

We evaluate the enhancement factor of the effective mass, m * /m, for polarons in a crystal composed of either the E e or the T t Jahn-Teller (JT) centers in the strong-coupling region. A much larger m * /m is found in the T t JT polarons than that in the E e ones. This difference originates from the absence/presence of rotational symmetry in the pseudospin space representing the degeneracy of orbitals at each JT center.

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