Absence of Long-Range Magnetic Order in the La1.4Sr0.8Ca0.8Mn2O7Bilayered Manganite

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Field-induced entropy change in the manganite with significant short-range magnetic order

Effects of short-range magnetic order on magnetic entropy change have been studied for the manganese oxide Eu0.55Sr0.45MnO3. Superparamagnetic clusters composed of seven to ten Mn ions, depending on applied field, have been derived in the paramagnetic state of the compound based on the analysis of dc susceptibility. The presence of short-range magnetic order greatly depresses the magnetic entro...

متن کامل

Magnetic order of the hexagonal rare-earth manganite Dy0.5Y0.5MnO3

Joel S. Helton,1,* Deepak K. Singh,1,2 Harikrishnan S. Nair,3 and Suja Elizabeth4 1NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA 2Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USA 3Jülich Centre for Neutron Science, Forschungszentrum Jülich, Outstation at FRM-II, D-8574...

متن کامل

Emergence of long-range order in sheets of magnetic dimers.

Quantum spins placed on the corners of a square lattice can dimerize and form singlets, which then can be transformed into a magnetic state as the interactions between dimers increase beyond threshold. This is a strictly 2D transition in theory, but real-world materials often need the third dimension to stabilize long-range order. We use high pressures to convert sheets of Cu(2+) spin 1/2 dimer...

متن کامل

Long-range magnetic order and the darwin lagrangian

We simulate a finite system of N confined electrons with inclusion of the Darwin magnetic interaction in two and three dimensions. The lowest-energy states are located using the steepest descent quenching adapted for velocity dependent potentials. Below a critical density the ground state is a static Wigner lattice. For supercritical density the ground state has a nonzero kinetic energy. The cr...

متن کامل

Variable pressure-temperature neutron diffraction of wüstite „Fe1−xO...: Absence of long-range magnetic order to 20 GPa

Neutron diffraction measurements have been performed on polycrystalline Fe1−xO swüstited up to 20.3 GPa using a large-volume moissanite anvil cell at room temperature to examine the existence of long-range magnetic ordering in the high-pressure rhombohedral phase of the material. This investigation is crucial for understanding the nature of high-pressure phase transitions in Fe1−xO. Low tempera...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Journal of Physical Chemistry B

سال: 2006

ISSN: 1520-6106,1520-5207

DOI: 10.1021/jp0624597