A5037079768- Rare-earth and actinide compounds
- Magnetic Properties of Alloys
- Magnetic and transport properties of perovskites and related materials
- High-pressure geophysics and materials
- Spectroscopy and Quantum Chemical Studies
- Advanced NMR Techniques and Applications
- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Mechanical and Optical Resonators
- Iron-based superconductors research
- Atomic and Subatomic Physics Research
- 2D Materials and Applications
- Nuclear Physics and Applications
- Boron and Carbon Nanomaterials Research
- Laser Design and Applications
- Spectroscopy and Laser Applications
- Cold Atom Physics and Bose-Einstein Condensates
Changshu Institute of Technology
2024
Technische Universität Dresden
2010-2011
Center for Theoretical Physics
2004
Fudan University
2004
Shanghai Institute of Technical Physics
2004
The $R$${}_{2}$PdSi${}_{3}$ intermetallic compounds have been reported to crystallize in a hexagonal AlB${}_{2}$-derived structure, with the rare earth atoms on Al sites and Pd Si randomly distributed B sites. However, intricate magnetic properties observed series of always suggested complications assumed structure. To clarify situation, x-ray neutron diffraction measurements were performed heavy $R=\text{Gd}$, Tb, Dy, Ho, Er, Tm, which revealed existence crystallographic superstructure....
We present results of neutron-diffraction experiments on a ${\text{Ho}}_{2}{\text{PdSi}}_{3}$ single crystal in the magnetically ordered state at $T=1.5\text{ }\text{K}$ for magnetic fields applied easy $(0,0,L)$ direction. Moderate less than 0.8 T are sufficient to wipe out antiferromagnetic order basal plane ${\text{AlB}}_{2}$-type hexagonal lattice structure. Concurrently strong reflections along direction develop with increasing that closely related nuclear superstructure found all...
Abstract Nd 2 PdSi 3 single crystals were grown by a vertical floating zone method with radiation heating at traveling rate of mm/h. The compound exhibits congruent melting behavior liquidus temperature about 1790 °C. actual crystal composition (35.3 ± 0.5) at.% Nd, (16.2 Pd, and (48.5 Si is slightly depleted in Pd respect to the nominal stoichiometry. Therefore, gradual accumulation these elements led decrease operating during growth process. Single crystalline samples exhibit large...
Due to the interplay between RKKY exchange interaction, crystalline-electric field (CEF) effects and geometric frustration due AlB2-derived hexagonal crystal structure, study of R2PdSi3 (R = rare earth) has been found be a challenging in earth magnetism. In this contribution we present results neutron diffraction experiments on Ho2PdSi3 single magnetically ordered state at T 1.6 K. The compound orders antiferromagnetically basal plane with propagation vector τ (1/7-δ, 2δ, 0) where δ ∼ 0.01...
The series R2PdSi3 (R = heavy rare earth) has been found to exhibit rich magnetic phase diagrams with a large variety of states. This complex behavior results from the interplay between RKKY interaction, magneto-crystalline anisotropy based on crystalline-electric field (CEF) effects and geometric frustration due AlB2 derived hexagonal crystal structure. Within Er2PdSi3 compound in zero simple CEF excitation spectrum just one strong transition at 3.5 meV ground state first excited state....
<title>Abstract</title> In this paper, we report the electronic transport and room-temperature ferromagnetism with Curie temperature ~ 330 K in 25-nm NiAs-type CrTe thin films epitaxially grown on SrTiO<sub>3</sub> (111) substrates using molecular beam epitaxy. Upon cooling from 350 K, film undergoes paramagnetic-to-ferromagnetic (PM-to-FM) ferromagnetic-to-antiferromagnetic (AFM) phase transitions. ground state (2 K), spins basically form antiferromagnetic ordering between Cr1 Cr2 layers,...
PANDA is a triple-axis spectrometer utilizing the cold neutron source of German research reactor FRM II in Garching. Its typical applications comprise studies spin dynamics and lattice dynamics, magnetic excitations structures. In past years, has earned its reputation by excellent performance these fields operating conventional, unpolarized mode. To complement this normal mode operation, full polarization analysis scattered neutrons was highly desired and, therefore, recently implemented....
The magnetic phase diagrams of hexagonal R2PdSi3 compounds have been found to feature an apparent similar when the field is applied along respective easy axes. To elucidate this, neutron diffraction on single crystalline Tb2PdSi3 and Ho2PdSi3 in fields was performed. These two different structures zero field. In propagation vector parallel axis while basal plane. both moment direction perpendicular vector. application a axes destroys structure leads ferrimagnetic with intensity same...
We simulate a relaxation process of polaron in polymer after photo excitation, and new state is realized by means proper excitation. The original lattice configuration the splits into two symmetrical peaks, consequently double-well potential formed, where wavefunctions electron localized these wells are entangled. Thus, this provides method to generate Schrödinger cat state. According dynamical configuration, time splitting about 150 fs.