31 Result(s)
within
H. -A. Krug von Nidda
-
Article
Magnetic Resonance in the Quasi-2D Square Lattice Easy-Plane Antiferromagnet Ba2MnGe2O7
We report results of a multi-frequency (0.8–60 GHz) electron spin resonance study of the spin dynamics in the quasi-2D square lattice antiferromagnet Ba2MnGe2O7 both in antiferromagnetically ordered and paramagne...
-
Article
Magnetic Properties of La0.81Sr0.19Mn0.9Fe0.1−xZnxO3 (x = 0, x = 0.05)
Magnetic properties of polycrystalline La0.81Sr0.19Mn0.9Fe0.1−xZnxO3 (x = 0, 0.05) have been investigated by means of electron spin resonance, magnetic susceptibility, and Mössbauer measurements. Both samples sho...
-
Article
Open AccessAuthor Correction: Vital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
-
Article
Open AccessVital role of magnetocrystalline anisotropy in cubic chiral skyrmion hosts
Magnetic anisotropy is anticipated to govern the formation of exotic spin textures reported recently in cubic chiral magnets, like low-temperature tilted conical and skyrmion lattice (SkL) states and metastabl...
-
Article
DFT and Mössbauer Spectroscopy Study of a FeTe0.5Se0.5 Single Crystal
The iron based superconductor FeSe0.5Te0.5 has been studied applying Mössbauer spectroscopy and ab initio density functional theory calculations of hyperfine parameters of iron nuclei. It has been shown that the ...
-
Article
Open AccessEquilibrium Skyrmion Lattice Ground State in a Polar Easy-plane Magnet
The skyrmion lattice state (SkL), a crystal built of mesoscopic spin vortices, gains its stability via thermal fluctuations in all bulk skyrmion host materials known to date. Therefore, its existence is limite...
-
Article
Magnetic properties of chain antiferromagnets RbFeSe2, TlFeSe2, and TlFeS2
Single crystals of ternary ion chalcogenides RbFeSe2, TlFeSe2, and TlFeS2 are studied by X-ray diffraction, SQUID magnetometry, and Mössbauer spectroscopy. Common structural units of these chalcogenides are tetra...
-
Article
Open AccessDielectric properties of complex magnetic field induced states in PbCuSO4(OH)2
Spin spirals, which coexist with collinear spin order in linarite PbCuSO4(OH)2, indicate electrical polarisation textures of spin-multipolar phases. We derive experimental evidence by a detailed investigation of ...
-
Chapter
Cobalt/Cobaltoxide Exchange Bias System for Diluted Ferromagnetic Alloy Films in Superconducting Spin-Valves
The present work reports on the influence of a Cobalt sublayer on a conventional exchange bias CoOx/Cu41Ni59 interface. For superconducting spintronics the ability to exchange bias diluted ferromagnetic alloys is...
-
Article
Heavy fermions, metal-to-insulator transition, and quantum criticality in La y Cu3Ru x Ti4−x O12
In this work we investigate the solid-solution series La y Cu3Ru x Ti4−x O12. The titanate La2/3Cu3Ti4O12 (x = ...
-
Article
Temperature features of the EPR spectrum of GdMnO3: Single crystal and thin film GdMnO3/LaAlO3
Electron paramagnetic resonance (EPR) spectra of GdMnO3 single crystal and GdMnO3/LaAlO3 thin film are measured at Q-band frequency in the temperature range of 4.2 to 300 K. The temperature dependence of paramete...
-
Article
Spin-dimerization in rare-earth substituted La2RuO5
The Ru-Ru spin-singlet formation in La2 − x L n x RuO5 (Ln = Pr, Nd, Sm, Gd, Dy) was investigated by measurement...
-
Article
Electron paramagnetic resonance studies of GdMnO3 single crystal and thin film deposited onto a LaAlO3 substrate
Electronic paramagnetic resonance (EPR) spectra of a GdMnO3 single crystal and GdMnO3/LaAlO3 thin film have been measured at X- and Q-band frequencies in the temperature range from 4.2 to 300 K. It is found that ...
-
Article
Magnetization and specific heat of the dimer system CuTe2O5
We report on magnetization and specific heat measurements on single-crystalline CuTe2O5. The experimental data are directly compared to theoretical results for two different spin structures, namely an alternatin...
-
Article
On the magnetism of Ln2/3Cu3Ti4O12 (Ln = lanthanide)
The magnetic and thermodynamic properties of the complete Ln2/3Cu3Ti4O12 series were investigated. Here Ln stands for the lanthanides La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb. All the samples inves...
-
Article
Physical properties of FeSe0.5Te0.5 single crystals grown under different conditions
We report on structural, magnetic, conductivity, and thermodynamic studies of FeSe0.5Te0.5 single crystals grown by self-flux and Bridgman methods. The lowest values of the susceptibility in the normal state, th...
-
Article
Quantum Criticality in Transition-Metal Oxides
We report on experiments of the bulk susceptibility χ(T), heat capacity C(T)/T, resistivity ρ(T) and nuclear resonances (NMR and NQR) in order to review evidence of quantum critical behaviour in some metallic tra...
-
Article
Magnetic resonance in quantum spin chains
The present understanding of quantum spin chains is reviewed from the magnetic resonance point of view. This includes both the ideal one-dimensional properties in the spin sector as well as the complex interp...
-
Article
Open AccessExperimental Presentation of Microwave Absorption due to Shaking of JV by AC Magnetic Field in Bi2212 and Bi2223
The Josephson Vortex dynamics in high anisotropy superconductors Bi2212 and Bi2223 induced by AC magnetic field collinear to DC magnetic field and parallel to the layers is studied via their interaction with m...
-
Article
Abrupt changes in the temperature dependence of the ESR linewidth of La1 − x Ca x MnO3 single crystals
The temperature dependence of the ESR linewidth in La1 − x Ca x MnO3 single crystals with various dopant concentrations (x = 0.18, 0.2, 0.22, 0.25, and 0.3) has...
