Manifestation of the Jahn-Teller effect subject to quadratic T ⊗ (e + t2) problem in ultrasonic attenuation. Case study of CaF2:Cr crystal with isovalent and aliovalent substitution

• Published in: Journal of physics. Condensed matter
• Main Authors: Sarychev, Maksim N, Hosseny, Wessam A L, Zhevstovskikh, Irina Vladimirovna, Ulanov, Vladimir A, Shakurov, Gilman S, Egranov, Aleksandr V, Surikov, Vladimir T, Averkiev, Nikita, Gudkov, Vladimir
• Format: Journal Article
• Language: English
• Published: England 01.06.2022
• Subjects: ultrasonics; transition metal impurity; adiabatic potential energy surface; tunneling; doped crystal

A new approach is introduced to obtain information about the adiabatic potential energy surface of the Jahn-Teller complexes subject to the T ⊗ (e + t2) problem in doped crystals. It employs simulation of the contribution of the Jahn-Teller sub-system to ultrasonic attenuation with account of three...