Jahn-Teller type structural phase transition for dysprosium-potassium double tungstate

Mieczyslaw Tadeusz Borowiec; A. Jedrzejczak; A. Nabialek; S. Piechota; Henryk Szymczak; Miroslaw Zaleski; V. P. Dyakonov; V. Markovich; A. Prokhorov; A. A. Pavlyuk

doi:10.1117/12.280750

14 July 1997 Jahn-Teller type structural phase transition for dysprosium-potassium double tungstate

Mieczyslaw Tadeusz Borowiec, A. Jedrzejczak, A. Nabialek, S. Piechota, Henryk Szymczak, Miroslaw Zaleski, V. P. Dyakonov, V. Markovich, A. Prokhorov, A. A. Pavlyuk

Author Affiliations +

Proceedings Volume 3178, Solid State Crystals: Growth and Characterization; (1997) https://doi.org/10.1117/12.280750
Event: XII Conference on Solid State Crystals: Materials Science and Applications, 1996, Zakopane, Poland

Abstract

The low temperature phase transitions in the KDy(WO₄)₂ single crystal have been studied by ESR and specific heat C(T) methods. Both the broad maximum of C(T) with peak at T_c equals 6.38 K and (lambda) -shaped temperature dependence of the ESR line width (Delta) H(T) in the vicinity of the transition may be explained as being due to the structural phase transition. The analysis of C(T) and (Delta) H(T) dependences show that the second order structural phase transition observed at T_c equals 6.38 K is the transition of Jahn-Teller type and does not occur with a change of point symmetry. The phase transition observed at about 0.6 K for heat capacity is connected with magnetic order of dysprosium ions.

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Mieczyslaw Tadeusz Borowiec, A. Jedrzejczak, A. Nabialek, S. Piechota, Henryk Szymczak, Miroslaw Zaleski, V. P. Dyakonov, V. Markovich, A. Prokhorov, and A. A. Pavlyuk "Jahn-Teller type structural phase transition for dysprosium-potassium double tungstate", Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); https://doi.org/10.1117/12.280750

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