Understanding the electron pairing in hole-doped cuprate superconductors has been a
challenge, in particular because the “normal” state from which it evolves is unprecedented …

Subtle but well characterized structural phase transformations occur at low temperatures in
some lanthanum cuprate superconductors. These transformations, which involve collective …

The Van Hove singularity (VHS) provides a paradigm for the study of the role of peaks in the
density of states (dos) on electronic properties. More importantly, it appears to play a major …

Abstract Analysis of the structural, transport, and superconducting properties of Nd-doped La
2− x Sr x Cu O 4 reveals a critical tilt angle of the Cu O 6 octahedra for the disappearance of …

Molecular nanomagnets show clear signatures of coherent behavior and have a wide
variety of effective low-energy spin Hamiltonians suitable for encoding qubits and …

Relativistic effects are of major importance for understanding the properties of heavier atoms
and molecules. Volumes I-III of Relativistic Theory of Atoms and Molecules constitute the …

We present an overview of the microscopic theory of the Dzyaloshinskii–Moriya (DM)
coupling and related exchange-relativistic effects such as exchange anisotropy, electron …

A distinct approach for calculations of Dzyaloshinskii-Moriya interactions in molecules and
crystals is proposed. It is based on the exact perturbation expansion of the total energy of …

We have successfully grown single crystals of La 2− x− y Nd y Sr x CuO 4 (x= 0, 0.12, 0.20;
y∼ 0.4) by the traveling-solvent floating-zone method. All of these crystals show a lattice …

We report a neutron scattering investigation of a La 1.65 Nd 0.35 CuO 4 single crystal which
undergoes a second order structural transition with decreasing temperature from a high …