High-pressure XRD on CeSiI reveals anisotropic lattice anomalies around the 6 GPa antiferromagnetic QCP at room temperature, driven by specific bond-length and layer-flattening changes without a structural phase transition.
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Spectroscopic measurements on CeSiI determine crystal-field levels and magnons, which are accounted for by dominant ferromagnetic nearest-neighbor Heisenberg exchange on a 2D lattice that stabilizes a co-rotating spin cycloid.
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Structural responses incipient to pressure-driven antiferromagnetic quantum critical point of van der Waals heavy-fermion metal CeSiI
High-pressure XRD on CeSiI reveals anisotropic lattice anomalies around the 6 GPa antiferromagnetic QCP at room temperature, driven by specific bond-length and layer-flattening changes without a structural phase transition.
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Magnetic order, magnons, and crystal fields in van der Waals CeSiI
Spectroscopic measurements on CeSiI determine crystal-field levels and magnons, which are accounted for by dominant ferromagnetic nearest-neighbor Heisenberg exchange on a 2D lattice that stabilizes a co-rotating spin cycloid.