Ground State in a Half-Doped Manganite Distinguished by Neutron Spectroscopy
نویسندگان
چکیده
منابع مشابه
Orbital domain dynamics in a doped manganite
We explore a number of novel effects near the orbital-order phase transition in a half-doped manganite, Pr0.5Ca0.5MnO3. To probe the unusual short-range orbital order in this system, we have performed coherent soft x-ray resonant scattering measurements in a Bragg geometry to measure dynamics. Near the transition temperature, we observe a small fluctuating component in the scattered signal that...
متن کاملStrain-driven orbital and magnetic orders and phase separation in epitaxial half-doped manganite films
D. Pesquera, A. Barla, M. Wojcik, E. Jedryka, F. Bondino, E. Magnano, S. Nappini, D. Gutiérrez, G. Radaelli, G. Herranz, F. Sánchez and J. Fontcuberta 1 Institut de Ciència de Materials de Barcelona ICMAB-CSIC, Campus UAB, 08193 Bellaterra, Spain 2 Istituto di Struttura della Materia, ISM CNR, S.S. 14 km 163.5, Area Science Park Basovizza (Ts), Trieste I34149, Italy 3 Polish Academy of Science,...
متن کاملVariable-range-hopping conductivity of the half-doped bilayer manganite LaSr2Mn2O7
X. J. Chen, C. L. Zhang, J. S. Gardner, J. L. Sarrao, and C. C. Almasan Department of Physics, Kent State University, Kent, Ohio 44242, USA Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8562, USA MST-10, Los Alamos National Laboratory, Los Alamos, ...
متن کاملThe neutrino ground state in a neutron star
We address a recent claim that the stability of neutron stars implies a lower bound on the mass of the neutrino. We argue that the result obtained by some previous authors is due to an improper summation of an infraredsensitive series and that a non-perturbative “resummation” of the series yields a finite and well-behaved result. The stability of neutron stars thus gives no lower bound on the m...
متن کاملGround State Wavepackets in Pump-Probe Spectroscopy
We discuss the pump-probe signals expected from ground state wavepackets. The concept of a 'pure hole' is examined. The temporal form of the signals can be qualitatively predicted from the pump and probe wavelengths and pulse durations using the classical Franck principle. Temperature is found to play an important role. These considerations are illustrated with quant urn mechanical calculations...
متن کاملذخیره 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: Physical Review Letters
سال: 2012
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.109.237202