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Unveiling Lattice Dynamics and a Hidden Structural Transition in the 2D Ferromagnet AgVPSe via Raman Spectroscopy
Thi Hai Yen Pham, Po-hao Chang, Aidan C. Malloy +7
Transition-metal chalcophosphates (TMCs) are two-dimensional (2D) van der Waals materials supporting a broad range of electronic and magnetic properties. Among quaternary TMCs, AgV…
Raman spectroscopy of the van der Waals altermagnet CoNbSe
Dushyanthini Balasundaram, Bishal Thapa, Resham Babu Regmi +4
We investigate the influence of Co intercalation and altermagnetic order on the lattice dynamics of the layered compound CoNbSe. Polarization-resolved Raman spectroscop…
Near-degenerate competing magnetic orders in EuAgAs: a tunable route to altermagnetism
Mohamed El Gazzah, Daniel Kaplan, Zachary Morgan +5
Altermagnets (AMs) have recently emerged as a distinct magnetic class bridging central features of ferromagnets (FMs) and antiferromagnets (AFMs), offering new opportunities for sp…
The mysterious magnetic ground state of Ba14MnBi11 is likely altermagnetic
Po-Hao Chang, Igor I. Mazin
Mn-based transition metal Zintl compounds in the 14-1-11 phase are known to host complex atomic and magnetic structures owing to their intricate crystal structure. Among them, Ba14…
Toward a first-principles theory of rare-earth ions in crystals
Y. Lee, Z. Ning, R. Flint +3
Density functional theory (DFT), including its extensions designed to treat strongly correlated localized electron systems such as DFT+ and DFT+dynamical mean field theory, has…
Absence of magnetic order in RuO: insights from SR spectroscopy and neutron diffraction
Philipp Keßler, Laura Garcia-Gassull, Andreas Suter +8
Altermagnets are a novel class of magnetic materials besides ferro- and antiferromagnets, where the interplay of lattice and spin symmetries produces a magnetic order that is stagg…
A tool to check whether a symmetry-compensated collinear magnetic material is antiferro- or altermagnetic
Andriy Smolyanyuk, Libor Šmejkal, Igor I. Mazin
Altermagnets (AM) is a recently discovered class of collinear magnets that share some properties (anomalous transport, etc) with ferromagnets, some (zero net magnetization) with an…
Exploring Metamagnetism in Triangular Ising Networks: Insights from Further-Neighbor Interactions with a Case Study on ErGa2
Po-Hao Chang, Igor I. Mazin
The classical Ising model on the triangular lattice (we will call it I-3 model below), while simple in the nearest-neighbors (NN) only approximation, becomes increasingly richer an…
Magnetic properties of multi-domain epitaxial EuPd thin films
Alfons G. Schuck, Sebastian Kölsch, Adrian Valadkhani +3
Europium intermetallic compounds show a variety of different ground states and anomalous physical properties due to the interactions between the localized 4f electrons and the delo…
Fragility of the magnetic order in the prototypical altermagnet RuO
Andriy Smolyanyuk, Igor I. Mazin, Laura Garcia-Gassull +1
Altermagnetism is a topic that has lately been gaining attention and the RuO compound is among one of the most studied altermagnetic candidates. However, the survey of availabl…
"Extraordinary" Phase Transition Revealed in a van der Waals Antiferromagnet
Xiaoyu Guo, Wenhao Liu, Jonathan Schwartz +12
While the surface-bulk correspondence has been ubiquitously shown in topological phases, the relationship between surface and bulk in Landau-like phases is much less explored. Theo…
Thermodynamic stability of Li-B-C compounds from first principles
Saba Kharabadze, Maxwell Meyers, Charlsey R. Tomassetti +3
Prediction of high- superconductivity in hole-doped LiBC two decades ago has brought about an extensive effort to synthesize new materials with honeycomb B-C layers…
Assessing the source of error in the Thomas-Fermi-von Weizsäcker density functional
Bishal Thapa, Xin Jing, John E. Pask +2
We investigate the source of error in the Thomas-Fermi-von Weizsäcker (TFW) density functional relative to Kohn-Sham density functional theory (DFT). In particular, through numeric…
Altermagnetism in MnTe: origin, predicted manifestations, and routes to detwinning
I. I. Mazin
MnTe has recently attracted attention as an altermagnetic candidate. Experimentally it has an altermagnetic order of ferromagnetic planes, stacked antiferromagnetically along…
A Punch line: altermagnetism
Igor I. Mazin
This is the first version of the editorial foreword to the Perspective review "Research Landscape of Altermagnetism" by L. Šmejkal, et al, published in Phys. Rev. X 12, 040501 (202…
Magnetic dilution effect and topological phase transitions in (MnPb)BiTe
Tiema Qian, Yueh-Ting Yao, Chaowei Hu +5
As the first intrinsic antiferromagnetic (AFM) topological insulator (TI), MnBiTe has provided a material platform to realize various emergent phenomena arising from the in…
Nontrivial doping evolution of electronic properties in Ising-superconducting alloys
Wen Wan, Darshana Wickramaratne, Paul Dreher +3
Transition metal dichalcogenides offer unprecedented versatility to engineer 2D materials with tailored properties to explore novel structural and electronic phase transitions. In…
Interplay between magnetism and band topology in Kagome magnets MnSn
Y. Lee, R. Skomski, X. Wang +9
Kagome-lattice magnets MnSn recently emerged as a new platform to exploit the interplay between magnetism and topological electronic states. Some of the most exciting fe…
Spin Spiral and Topological Hall Effect in a Metamagnet FeGa
Mahdi Afshar, Igor I. Mazin
A new mechanism for Topological Hall Effect (THE) was recently proposed for the spiral magnet YMnSn which requires transverse conical spiral (TCS) magnetism, induced b…
Prediction of unconventional magnetism in doped FeSb2
I. I. Mazin, K. Koepernik, M. D. Johannes +2
It is commonly believed that in typical collinear antiferromagnets, with no net magnetization, the energy bands are spin-(Kramers-degenerate. The opposite case is usually associate…
Density Functional Theory based Electric Field Gradient Database
Kamal Choudhary, Jaafar N. Ansari, Igor I. Mazin +1
The deviation of the electron density around the nuclei from spherical symmetry determines the electric field gradient (EFG), which can be measured by various types of spectroscopy…
Impact of biaxial and uniaxial strain on VO
Darshana Wickramaratne, Noam Bernstein, I. I. Mazin
Using first-principles calculations we determine the role of compressive and tensile uniaxial and equibiaxial strain on the structural, electronic and magnetic properties of VO…
The role of defects in the metal-insulator transition in VO and VO
Darshana Wickramaratne, Noam Bernstein, I. I. Mazin
The vanadates VO and VO are prototypical examples of strongly correlated materials that exhibit a metal-insulator transition. While the phase transitions in these mater…
Double Indirect Interlayer Exciton in a MoSe2/WSe2 van der Waals Heterostructure
Aubrey T. Hanbicki, Hsun-Jen Chuang, Matthew R. Rosenberger +5
An emerging class of semiconductor heterostructures involves stacking discrete monolayers such as the transition metal dichalcogenides (TMDs) to form van der Waals heterostructures…