Rinehart Group Photo
magnetically anisotropic dinuclear erbium complex
Designing Magnetic Anisotropy at the Molecular Level

f-element materials electronic-structure-driven synthesis anisotropic magnetic interactions spintronics

Magnetic anisotropy (the propensity for magnetization to align in a particular direction) is created by restricting the motion of electrons within a material.

The highly tunable electronic structure of the f-elements holds the promise of magnetic building units that allow predictive bottom-up design of powerful new magnetic materials.     

magnetically anisotropic dinuclear erbium complex
Nanoscale Composite Magnetoresistive Materials

tunneling magnetoresistance sensing devices magnetotransport nanoparticle solids colloidal nanoparticles

The precision control offered by magnetoresistive devices continues to be a driving force in electronic sensing technologies. Merging nanosynthesis with classic mechanisms allows us to rapidly explore sensitive, tunable magnetoresistance in monolithic, simply-prepared materials.

magnetically anisotropic dinuclear erbium complex
Enhancing Magnetism through Multiscale Structural Control

exchange bias exchange-spring magnetism bottom-up molecular design heterostructured materials

The nature of a magnetic material can be completely transformed by interactions with other materials on the sub-micron scale. Fundamental control of these powerful synergistic forces to construct new materials can proceed intuitively if single-domain magnets are used as the basic building units.

magnetically anisotropic dinuclear erbium complex
New Mechanisms for Ultrasound-responsive Materials

ultrasound contrast agents medical imaging polymer nanoparticles fluorophilic interactions

The interaction between vibrational energy (sound and ultrasound) and matter is well-understood and widely utilized in nature (echolocation), navigation (sonar), engineering (non-destructive testing), and medical diagnostics. By designing materials optimized to interact with sound in new ways, information-rich signals can be created, giving information about their location, enviroment, and motion.

magnetically anisotropic dinuclear erbium complex
Role of Metals in Amorphous Biomaterials

biopolymers nature-inspired functional materials metal chelation amorphous materials characterization

Many biomaterials accumulate metals naturally or from environment pollution, yet the implications often remain opaque due to the complex amorphous structure of the material. Development of models based on magnetometry offers unique insight into coordination, redox state, electronic interactions, and reactivity of these vitally important materials.

The Rinehart Group
Dept. of Chemistry and Biochemistry
9500 Gilman Dr.
University of California, San Diego
La Jolla, CA, 92092-0358