نتایج جستجو برای: la2cuo4
تعداد نتایج: 181 فیلتر نتایج به سال:
The nuclear quadrupole resonance (NQR) spectrum of strontium doped La2CuO4 surprisingly resembles the NQR spectrum of La2CuO4 doped with excess oxygen, both spectra being dominated by a main peak and one principal satellite peak at similar frequencies. Using first-principles cluster calculations this is investigated here by calculating the electric field gradient (EFG) at the central copper sit...
Cuprates and other high-temperature superconductors consist of two-dimensional layers that are crucial to their properties. The dynamics of the quantum spins in these layers lie at the heart of the mystery of the cuprates. In bulk cuprates such as La(2)CuO(4), the presence of a weak coupling between the two-dimensional layers stabilizes a three-dimensional magnetic order up to high temperatures...
The oxidation reactions of BaLaCuS3 in the artificial air atmosphere were studied at different heating rates temperature range 50–1200 °C. stages determined by DSC-TG, XRD and IR–vis methods. kinetic characteristics proceeding obtained with use Kissinger model a linearized form. Compound was stable up to 280 Upon further 1200 °C, this complex sulfide underwent three main stages. first stage is ...
I give a brief overview of a polaron formation in three distinct transition metal oxides: (i) spin polaron when a hole is added to the antiferromagnetic (AF) ordered plane in La2CuO4, (ii) orbital polaron when a hole is added to the alternating orbital (AO) ordered plane in LaMnO3, and (iii) spin-orbital polaron when a hole is added to the AF and AO ordered plane in LaVO3. Comparison of the dis...
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