Electronic instabilities in shape-memory alloys: Thermodynamic and electronic structure studies of the martensitic transition
Genre
Journal ArticleDate
2007-05-22Author
Lashley, JCSchulze, RK
Mihaila, B
Hults, WL
Cooley, JC
Smith, JL
Riseborough, PS
Opeil, CP
Fisher, RA
Svitelskiy, O
Suslov, A
Finlayson, TR
Permanent link to this record
http://hdl.handle.net/20.500.12613/6098
Metadata
Show full item recordDOI
10.1103/PhysRevB.75.205119Abstract
Using a variety of thermodynamic measurements made in magnetic fields, we show evidence that the diffusionless transition (DT) in many shape-memory alloys is related to significant changes in the electronic structure. We investigate three alloys that show the shape-memory effect (In-24 at. % Tl, AuZn, and U-26 at. % Nb). We observe that the DT is significantly altered in these alloys by the application of a magnetic field. Specifically, the DT in InTl-24 at. % shows a decrease in the DT temperature with increasing magnetic field. Further investigations of AuZn were performed using an ultrasonic pulse-echo technique in magnetic fields up to 45 T. Quantum oscillations in the speed of the longitudinal sound waves propagating in the [110] direction indicated a strong acoustic de Haas-van Alphen-type effect and give information about part of the Fermi surface. © 2007 The American Physical Society.Citation to related work
American Physical Society (APS)Has part
Physical Review B - Condensed Matter and Materials PhysicsADA compliance
For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.eduae974a485f413a2113503eed53cd6c53
http://dx.doi.org/10.34944/dspace/6080