Enormous electron-electron scattering in the filled-cage cubic compound
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Materials Science and Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Leibniz Inst. for Solid State and Materials Research (IFW), Dresden (Germany)
- Nanjing Univ. (China). National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures
Cubic intermetallic compound Ba10Ti24Bi39 has a Ba6Bi16 polyhedral cage with a Bi guest atom encapsulated inside. The compound can be formulated as Ba5Ti12Bi$$_{19+x}$$ when $$x$$ signifies the extra Bi atoms filling cages. It crystallizes in a complex noncentrosymmetric cubic structure in space group $P-43m$ with cell parameter $a = 12.6787(4)Å$. The guest Bi atoms distribute diffusely in the cages and seem to play a role in stabilizing the crystal structure. The magnetic susceptibility of this compound shows a weak temperature dependence with a positive slope coefficient. The charge transport properties as a function of temperature exhibit two competing components which are in charge of positive and negative magnetoresistances. Electronic band-structure calculations reveal the complex multiband hybridization of Ti/Bi orbitals near the Fermi surface, which may play a role in the enormous electron-electron scattering in this material evidenced by the large Kadowaki-Woods ratio.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1570005
- Journal Information:
- Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 10 Vol. 3; ISSN PRMHAR; ISSN 2475-9953
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Exploration of Multi-Component Vanadium and Titanium Pnictides Using Flux Growth and Conventional High-Temperature Methods
|
journal | January 2020 |
Similar Records
Electric field dependent local structure of
Tunable inverse topological heterostructure utilizing and multichannel weak-antilocalization effect