974 citations · 2k across the 43 of their papers we have counts for
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The Origin of the Observed Raman Peaks in α-MnTe
Nurul Azam, Syed Mohammad Shahed, Liam T. Schmidt +21
The Raman spectrum of the room-temperature altermagnet -MnTe is reported to contain unassigned peaks at 120(3) cm and 140(3) cm, absent from the predicted phonon s…
Disorder-driven symmetry suppression by van der Waals planar defects in a magnetic topological insulator
Rikkie Joris, Heyi Xia, Ana Beatriz Pedro Fontes +17
Magnetic topological insulators offer a platform to control electronic topology through magnetic order, yet reliable routes to tune their properties remain limited. Here, we show t…
RHEED pattern classification by a convolutional neural network for the growth of chalcogenide thin films and nanostructures
Nathan Muetzel, Viet Luu, Sara Bey +5
The use of reflection high energy electron diffraction (RHEED) plays a critical role for in-situ characterization in molecular beam epitaxy, pulsed laser deposition and sputtering.…
Interface, bulk and surface structure of heteroepitaxial altermagnetic α-MnTe films grown on GaAs(111)
Sara Bey, Maksym Zhukovskyi, Tatyana Orlova +7
Epitaxial MnTe films have recently seen a spur of research into their altermagnetic semiconducting properties. However, those properties may be extremely sensitive to structural an…
Unexpected Tuning of the Anomalous Hall Effect in Altermagnetic MnTe Thin Films
Sara Bey, Shelby S. Fields, Nicholas G. Combs +10
The discovery of an anomalous Hall effect (AHE) sensitive to the magnetic state of antiferromagnets can trigger a new era of spintronics, if materials that host a tunable and stron…
MBE growth of axion insulator candidate EuIn2As2
Muhsin Abdul Karim, Jiashu Wang, David Graf +6
The synthesis of thin films of magnetic topological materials is necessary to achieve novel quantized Hall effects and electrodynamic responses. EuIn2As2 is a recently predicted to…
Epitaxial growth and magnetic characterization of EuSe thin films with various crystalline orientations
Ying Wang, Xinyu Liu, Seul-Ki Bac +6
We report different growth modes and corresponding magnetic properties of thin EuSe films grown by molecular beam epitaxy on BaF2, Pb1-xEuxSe, GaAs, and Bi2Se3 substrates. We show…
Introduction of Sr into Bi2Se3 thin films by molecular beam epitaxy
L. Riney, C. Bunker, S. -K. Bac +7
SrxBi2Se3 is a candidate topological superconductor but its superconductivity requires the intercalation of Sr by into the van-der-Waals gaps of Bi2Se3. We report the synthesis of…
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…
Dirac parameters and topological phase diagram of Pb1-xSnxSe from magneto-spectroscopy
G. Krizman, B. A. Assaf, T. Phuphachong +4
Pb1-xSnxSe hosts 3D massive Dirac fermions across the entire composition range for which the crystal structure is cubic. In this work, we present a comprehensive experimental mappi…
Positron surface state as a spectroscopic probe for characterizing surfaces of topological insulator materials
Vincent Callewaert, K. Shastry, Rolando Saniz +8
Topological insulators are attracting considerable interest due to their potential for technological applications and as platforms for exploring wide-ranging fundamental science qu…
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…
High-precision realization of robust quantum anomalous Hall state in a hard ferromagnetic topological insulator
Cui-Zu Chang, Weiwei Zhao, Duk Y. Kim +7
The discovery of the quantum Hall (QH) effect led to the realization of a topological electronic state with dissipationless currents circulating in one direction along the edge of…
Atomic moments in Mn2CoAl thin films analyzed by X-ray magnetic circular dichroism
Michelle E. Jamer, Badih A. Assaf, George E. Sterbinsky +2
Spin gapless semiconductors are known to be strongly affected by structural disorder when grown epitaxially as thin films. The magnetic properties of Mn2CoAl thin films grown on Ga…
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…
Magnetic and transport properties of Mn2CoAl oriented thin films
Michelle E. Jamer, Badih A. Assaf, Trithep Devakul +1
The structure, magnetic and transport properties of thin films of the Heusler ferrimagnet Mn_{2}CoAl have been investigated for properties related to spin gapless semiconductors. O…