81 citations · 313 across the 13 of their papers we have counts for
13 papers
Theory of defect-induced crystal field perturbations in rare earth magnets
Christopher E. Patrick, Yixuan Huang, Laura H. Lewis +1
We present a theory describing the single-ion anisotropy of rare earth (RE) magnets in the presence of point defects. Taking the RE-lean 1:12 magnet class as a prototype, we use fi…
Revisiting Néel 60 years on: the magnetic anisotropy of FeNi (tetrataenite)
Christopher D. Woodgate, Christopher E. Patrick, Laura H. Lewis +1
The magnetocrystalline anisotropy energy of atomically ordered FeNi (the meteoritic mineral tetrataenite) is studied within a first-principles electronic structure…
Discovery and implications of hidden atomic-scale structure in a metallic meteorite
András Kovács, Laura H. Lewis, Dhanalaksmi Palanisamy +7
Iron and its alloys have made modern civilisation possible, with metallic meteorites providing one of the human's earliest sources of usable iron as well as providing a window into…
Superconducting and Antiferromagnetic Properties of Dual-Phase VGa
Michelle E. Jamer, Brandon Wilfong, Vasiliy D. Buchelnikov +11
The binary compound VGa can exhibit two near-equilibrium phases, consisting of the A15 structure that is superconducting, and the Heusler D0 structure that is semiconductin…
Structural and electronic properties of the spin-filter material CrVTiAl with disorder
Gregory M. Stephen, Gianina Buda, Michelle E. Jamer +7
The effects of chemical disorder on the transport properties of the spin-filter material CrVTiAl are investigated experimentally and theoretically. Synchrotron X-ray diffraction ex…
Synthesis of low-moment CrVTiAl: a potential room temperature spin filter
Gregory M. Stephen, Ian McDonald, Brian Lejeune +2
The efficient production of spin-polarized currents at room temperature is fundamental to the advancement of spintronics. Spin-filter materials --- semiconductors with unequal band…
Low-moment ferrimagnetic phase of the Heusler compound Cr2CoAl
Michelle E. Jamer, Luke G. Marshall, George E. Sterbinsky +2
Synthesizing half-metallic fully-compensated ferrimagnets that form in the inverse Heusler phase could lead to superior spintronic devices. These materials would have high spin pol…
Antiferromagnetic phase of the gapless semiconductor V3Al
M. E. Jamer, B. A. Assaf, G. E. Sterbinsky +5
Discovering new antiferromagnetic compounds is at the forefront of developing future spintronic devices without fringing magnetic fields. The antiferromagnetic gapless semiconducti…
Observation of a temperature dependent asymmetry in the domain structure of a Pd doped FeRh epilayer
C. J. Kinane, M. Loving, M. A. de Vries +10
Using X-ray photoelectron emission microscopy we have observed the coexistence of ferromagnetic and antiferromagnetic phases in a (3 at.%)Pd-doped FeRh epilayer. By quantitatively…
Magnetic Properties and Large Coercivity of MnxGa Nanostructures
Michelle E. Jamer, Badih A. Assaf, Steven P. Bennett +2
To investigate structure-property correlations, high-coercivity MnxGa nanoparticles were synthesized by the method of sequential deposition of Ga and Mn fluxes using molecular beam…
Hall effect characterization of electronic transition behind the metamagnetic transition in FeRh
M. A. de Vries, M. L. Loving, A. P. Mihai +3
The antiferromagnetic ground state and the metamagnetic transition to the ferromagnetic state of CsCl-ordered FeRh epilayers have been characterized using Hall and magnetoresistanc…
Universal Properties of Linear Magnetoresistance in Strongly Disordered Semiconductors
H. G. Johnson, S. P. Bennett, R. Barua +2
Linear magnetoresistance occurs in semiconductors as a consequence of strong electrical disorder and is characterized by nonsaturating magnetoresistance that is proportional to the…
Determining Magnetic Nanoparticle Size Distributions from Thermomagnetic Measurements
R. S. DiPietro, H. G. Johnson, S. P. Bennett +3
Thermomagnetic measurements are used to obtain the size distribution and anisotropy of magnetic nanoparticles. An analytical transformation method is described which utilizes tempe…