Evolution of magnetic surfboards and spin glass behavior in (Fe 1-p Ga p ) 2 TiO 5 .
Yu LiDaniel PhelanFeng YeHong ZhengElena KrivyakinaAnjana SamarakoonPatrick Galloway LaBarreJennifer NeuTheo SiegristStephan RosenkranzSergey SyzranovArthur P RamirezPublished in: Journal of physics. Condensed matter : an Institute of Physics journal (2023)
The unusual anisotropy of the spin glass transition in the pseudobrookite system Fe2TiO5 has been interpreted as arising from an induced, van der Waals-like, interaction among magnetic clusters. Here we present susceptibility (χ) and specific heat data (C) for Fe2TiO5 diluted with non-magnetic Ga, (Fe1-pGap)2TiO5, for disorder parameter p = 0, 0.11, and 0.42, and elastic neutron scattering data for p = 0.20. A uniform suppression of Tg is observed upon increasing p, along with a value of χ(Tg) that increases as Tg decreases, i.e. dχ(Tg)/dTg< 0. We also observe CT∝T2 in the low temperature limit. The observed behavior places (Fe1-pGap)2TiO5 in the category of a strongly geometrically frustrated spin glass.
.
Keyphrases
- visible light
- quantum dots
- pet ct
- molecularly imprinted
- metal organic framework
- density functional theory
- single molecule
- electronic health record
- computed tomography
- big data
- machine learning
- magnetic resonance imaging
- diabetic rats
- oxidative stress
- transition metal
- contrast enhanced
- heat stress
- artificial intelligence
- deep learning
- data analysis