72 citations · 288 across the 9 of their papers we have counts for
9 papers
Field-Induced Magnetic Monopole Plasma in Artificial Spin Ice
M. Goryca, X. Zhang, J. Li +6
Artificial spin ices (ASIs) are interacting arrays of lithographically-defined nanomagnets in which novel frustrated magnetic phases can be intentionally designed. A key emergent d…
Comparing the anomalous Hall effect and the magneto-optical Kerr effect through antiferromagnetic phase transitions in MnSn
A. L. Balk, N. H. Sung, S. M. Thomas +6
In the non-collinear antiferromagnet MnSn, we compare simultaneous measurements of the anomalous Hall effect (AHE) and the magneto-optical Kerr effect (MOKE) through two magnet…
Room Temperature Magnetic Order in Air-Stable Ultra-Thin Iron Oxide
Jiangtan Yuan, Andrew Balk, Hua Guo +6
Certain two-dimensional (2D) materials exhibit intriguing properties such as valley polarization, ferroelectricity, superconductivity and charge-density waves. Many of these materi…
Broadband spectroscopy of thermodynamic magnetization fluctuations through a ferromagnetic spin-reorientation transition
A. L. Balk, F. Li, I. Gilbert +3
We use scanning optical magnetometry to study the broadband frequency spectra of spontaneous magnetization fluctuations, or "magnetization noise", in an archetypal ferromagnetic fi…
Bubble Magnetometry of Nanoparticle Heterogeneity and Interaction
A. L. Balk, I. Gilbert, R. Ivkov +2
Bubbles have a rich history as transducers in particle-physics experiments. In a solid-state analogue, we use bubble domains in nanomagnetic films to measure magnetic nanoparticles…
Simultaneous control of the Dzyaloshinskii-Moriya interaction and magnetic anisotropy in nanomagnetic trilayers
Andrew L. Balk, Kyoung-Whan Kim, Daniel T. Pierce +3
Magneto-optical Kerr effect (MOKE) microscopy measurements of magnetic bubble domains demonstrate that Ar+ irradiation around 100 eV can tune the Dzyaloshinskii-Moriya interaction…
Direct Imaging of Complex Spin Ice Behavior and Ordered Sublattices in Artificial Ferromagnetic Quasicrystals
V. S. Bhat, A. Balk, B. Farmer +5
We have imaged magnetization textures of permalloy films patterned into Penrose P2 tilings (P2T) using scanning electron microscopy with polarization analysis (SEMPA). P2T film seg…
Magneto-optical Kerr Effect Studies of Square Artificial Spin Ice
K. K. Kohli, Andrew L. Balk, Jie Li +6
We report a magneto-optical Kerr effect study of the collective magnetic response of artificial square spin ice, a lithographically-defined array of single-domain ferromagnetic isl…
Measurements of Nanoscale Domain Wall Flexing in a Ferromagnetic Thin Film
A. L. Balk, M. E. Nowakowski, M. J. Wilson +4
We use the high spatial sensitivity of the anomalous Hall effect in the ferromagnetic semiconductor Ga1-xMnxAs, combined with the magneto-optical Kerr effect, to probe the nanoscal…