News
Graphene Sensing of Biomolecules and Chemical Environment
Fluidic chamber placed on top of
graphene sensor to exchange fluid
and hence protein or chemical
concentration during a measurement.
News
Seed Project: The Dynamics of Organic Magneto-resistance (OMAR)
Objective: To study the dynamics of magneto-resistance in organic diodes
Approach: Measure electronic transport and magneto-transport of organic diodes as a function of frequency with an applied magnetic field using admittance spectroscopy
News
Liquid Metal-Based Plasmonics
Objective: To develop and characterize new plasmonic metamaterials in the terahertz (THz) spectral range.
Approach: Explore unconventional materials that are typically not suitable for plasmonics applications at optical frequencies but exhibit reasonable conductivities at THz frequencies.
Results and Significance: Liquid metals and well-developed microfluidic technology can be used successfully to create useful devices in a frequency range commonly referred to as the “gap in the electromagnetic spectrum.”
News
FRG-2 – Using Weakly Spin-Coupled Polaron Pair States for a Calibration Free Absolute Magnetometry
Objective:
A precise absolute magnetometer based on organic spintronics that is scalable to micron dimensions, has low cost and that is not adversely affected by environmental influences (temperature, air etc.).
Approach: Integrated bipolar MEH-PPV device above magnetic field strip lines for magnetic resonant excitation. The B-field is measured through spin-dependent current changes under magnetic resonance.
Results and Significance: For the p-conjugated polymer MEH-PPV, an ABSOLUTE sensitivity of
News
A Better Type of Computer Memory Demonstrated
Newly discovered “giant” spin Hall effect enables simple and efficient magnetic memory
News
Multiblock Polymers: Panacea or Pandora’s Box
Advances in polymer synthesis have enabled access to a vast array of multiblock polymer architectures, with rich opportunities for designing multiple functionalities into a single self-assembled material.
News
Nonmagnetic elements turn graphene magnetic
Physicists have predicted that
graphene, a single atomic sheet of carbon, could be turned magnetic simply by
attaching a hydrogen atom (or removing a carbon atom). However, detecting this
magnetism has been elusive due to many pitfalls that arise using traditional
methods.
Kawakami has developed a new method
to detect magnetism in graphene. Pure spin currents are injected into graphene,
which then depolarize in a particular and recognizable way if magnetic moments
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