4 papers
Low Temperature Magnetothermodynamics of Pr{0.7}Ca{0.3}MnO{3}
M. Roy, J. F. Mitchell, A. P. Ramirez +1
We present a detailed magnetothermal study of PrCaMnO, a perovskite manganite in which an insulator-metal transition can be driven by magnetic field, but also…
Field Dependent Specific-Heat of Rare Earth Manganites
M. Roy, J. F. Mitchell, S. J. Potashnik +1
The low temperature specific heat C(H) of several rare-earth manganites (La_(0.7)Sr_(0.3)MnO_(3), Nd_(0.5)Sr_(0.5)MnO_(3), Pr_(0.5)Sr_(0.5)MnO_(3), La_(0.67)Ca_(0.33)MnO$_(3), La_(…
Time Dependent Effects and Transport Evidence for Phase Separation in La_{0.5}Ca_{0.5}MnO_{3}
M. Roy, J. F. Mitchell, P. Schiffer
The ground state of La_{1-x}Ca_{x}MnO_{3} changes from a ferromagnetic metallic to an antiferromagnetic charge-ordered state as a function of Ca concentration at x ~ 0.50. We prese…
Soft spin waves in the low temperature thermodynamics of Pr_{0.7}Ca_{0.3}MnO_{3}
M. Roy, J. F. Mitchell, A. P. Ramirez +1
We present a detailed magnetothermal study of Pr(0.7)Ca(0.3)MnO(3), a perovskite manganite in which an insulator-metal transition can be driven by magnetic field, but also by press…