Chiral multiferroicity in two-dimensional hybrid organic-inorganic perovskites.

Chiral multiferroics offer remarkable capabilities for controlling quantum devices at multiple levels. However, these materials are rare due to the competing requirements of long-range orders and strict symmetry constraints. In this study, we present experimental evidence that the coexistence of ferroelectric, magnetic orders, and crystallographic chirality is achievable in hybrid organic-inorganic perovskites [(R/S)-β-methylphenethylamine]CuCl.

Electron Spin Decoherence Dynamics in Magnetic Manganese Hybrid Organic-Inorganic Crystals: The Effect of Lattice Dimensionality.

Organic-inorganic metal hybrids with their tailorable lattice dimensionality and intrinsic spin-splitting properties are interesting material platforms for spintronic applications. While the spin decoherence process is extensively studied in lead- and tin-based hybrids, these systems generally show short spin decoherence lifetimes, and their correlation with the lattice framework is still not well-understood. Herein, we synthesized magnetic manganese hybrid single crystals of (4-fluorobenzylamine)MnCl, (()-3-fluoropyrrolidinium)MnCl, and (pyrrolidinium)MnCl, which represent a change in lattice dimensionality from 2D and 1D to 0D, and studied their spin decoherence processes using continuous-wave electron spin resonance spectroscopy.

Magnetoimpedance of Epitaxial YFeO (001) Thin Film in Low-Frequency Regime.

The atomically flat interface of the YFeO (YIG) thin film and the GdGaO (GGG) substrate plays a vital role in obtaining the magnetization dynamics of YIG below and above the anisotropy field. Here, magnetoimpedance (MI) is used to investigate the magnetization dynamics in fully epitaxial 45 nm YIG thin films grown on the GGG (001) substrates using a copper strip coil in the MHz-GHz frequency region. The resistance () and reactance (), which are components of impedance (), allow us to probe the absorptive and dispersive components of the dynamic permeability, whereas a conventional spectrometer only measures the field derivative of the power absorbed.

Broadband Electron Spin Resonance Study in a SrFeMoO Double Perovskite.

We report broadband magnetic resonance in polycrystalline SrFeMoO measured over the wide temperature ( = 10-370 K) and frequency ( = 2-18 GHz) ranges. SrFeMoO was synthesized by the sol-gel method and found to be ferromagnetic below = 325 K. A coplanar waveguide-based broadband spectrometer was used to record the broadband electron spin resonance (ESR) both in frequency sweep and field sweep modes.

Influence of magnetic field on electrical and thermal transport in the hole doped ferromagnetic manganite: LaNaMnO.

We report the magnetization (), magnetostriction, electrical resistivity (), thermal conductivity () and thermopower () of polycrystalline LaNaMnO over a wide temperature range of 5 to 360 K. This sample undergoes a paramagnetic to ferromagnetic transition around = 274 K and electrical resistivity shows an insulator-metal transition around = 292 K. The sign of thermopower is positive in the entire temperature range which indicates that majority charge carriers are holes.

Composition dependence of magnetocaloric effect in Pr0.6Ca0.4Mn(1-x)Cr(x)O3 (x = 0.02-0.08).

We report the effect of varying Cr content on magnetic and magnetocaloric properties of Pr0.6Ca0.4Mn(1-x)Cr(x)O3 samples (x = 0, 0.