Specific Heat Experiments at the Cooperative Jahn‐Teller Transition in the Mixed Crystal Systems (Tb  x  , Tm 1− x  )AsO 4  and (Tb  x  , Tm 1− x  )VO 4 | Zendy

Kasten A. | Zendy; Kahle H. G. | Zendy; Klöfer P. | Zendy; SchäferSiebert D. | Zendy

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Specific Heat Experiments at the Cooperative Jahn‐Teller Transition in the Mixed Crystal Systems (Tb x , Tm 1− x )AsO 4 and (Tb x , Tm 1− x )VO 4

Author(s) -

Kasten A.,

Kahle H. G.,

Klöfer P.,

SchäferSiebert D.

Publication year - 1987

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221440137

Subject(s) - vanadate , jahn–teller effect , gaussian , condensed matter physics , phase transition , crystal (programming language) , chemistry , distortion (music) , crystallography , materials science , physics , ion , inorganic chemistry , computational chemistry , amplifier , optoelectronics , organic chemistry , cmos , computer science , programming language

Single crystals of the systems (Tb x , Tm 1− x )AsO 4 and (Tb x , Tm 1− x )VO 4 are investigated by means of specific heat measurements in the temperature region 1 to 40 K. Whereas for the arsenate a cooperative Jahn‐Teller distortion is observed over the whole concentration range x , in the vanadate the phase transition is missing for 0.1 ≦ x ≦ 0.4. This can be understood in mean field theory taking into account the effect of local strains which are assumed to have a random (Gaussian) distribution.

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