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Journal Articles Angewandte Chemie International Edition Year : 2020

Stress‐induced Domain Wall Motion in a Ferroelastic Mn3+ Spin Crossover Complex

Vibe Jakobsen
  • Function : Author
Elzbieta Trzop
Laurence Gavin
  • Function : Author
Emiel Dobbelaar
  • Function : Author
Shalinee Chikara
  • Function : Author
Xiaxin Ding
  • Function : Author
Kane Esien
  • Function : Author
Solveig Felton
  • Function : Author
Vivien Zapf
  • Function : Author
Grace Genevieve Morgan
  • Function : Correspondent author

Abstract

Domain wall motion is detected for the first time during the transition to a ferroelastic and spin-state ordered phase of a spin crossover complex. Single crystal X-ray diffraction and resonant ultrasonic spectroscopy (RUS) revealed two distinct symmetry-breaking phase transitions in the mononuclear Mn 3+ compound [Mn(3,5-diBr-sal 2 (323))]BPh 4 , 1. The first at 250 K, involves the space group change Cc → Pc and is thermodynamically continuous, while the second, Pc → P1 at 85 K, is discontinuous and related to spin crossover and spin-state ordering. Stress-induced domain wall mobility was detected as softening of the phonon modes at the Pc → P1 transition.
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Dates and versions

hal-02562751 , version 1 (11-05-2020)

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Vibe Jakobsen, Elzbieta Trzop, Laurence Gavin, Emiel Dobbelaar, Shalinee Chikara, et al.. Stress‐induced Domain Wall Motion in a Ferroelastic Mn3+ Spin Crossover Complex. Angewandte Chemie International Edition, 2020, 59 (32), pp.13305-13312. ⟨10.1002/anie.202003041⟩. ⟨hal-02562751⟩
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