49 citations · 243 across the 14 of their papers we have counts for
5 papers · 1 filter
The loop-zag resonator: A loop-gap resonator design for improved sensitivity in electron-spin resonance experiments
Brendan C. Sheehan, Guanchu Chen, Sai Chauhan +5
We present a novel design of loop-gap resonator, the loop-zag resonator, for sub-X-band electron-spin resonance spectroscopy. The loop-zag design can achieve improved coupling to s…
Direct Spectroscopic Observation of Berry Phase Interference in the Ni Single-Molecule Magnet
Brendan C. Sheehan, Robert Kwark, Charles A. Collett +3
Berry phase effects in spin systems lead to the suppression of tunneling effects when different tunneling paths interfere destructively. Such effects have been seen in several sing…
A Clock Transition in the CrMn Molecular Nanomagnet
Charles A. Collett, Kai-Isaak Ellers, Nicholas Russo +4
A viable qubit must have a long coherence time . In molecular nanomagnets is often limited at low temperatures by the presence of dipole and hyperfine interactions, whic…
Precision ESR Measurements of Transverse Anisotropy in the Single-molecule Magnet Ni
Charles A. Collett, Rafael A. Allão Cassaro, Jonathan R. Friedman
We present a method for precisely measuring the tunnel splitting in single-molecule magnets using electron-spin resonance, and use these measurements to precisely and independently…
Observation of tunneling-assisted highly forbidden single-photon transitions in a Ni single-molecule magnet
Yiming Chen, Mohammad D. Ashkezari, Charles A. Collett +4
Forbidden transitions between energy levels typically involve violation of selection rules imposed by symmetry and/or conservation laws. A nanomagnet tunneling between up and down…