A study of the magnetic and electrical crossover region of LaCaMnO3

M Roy, JF Mitchell, AP Ramirez… - Journal of Physics …, 1999 - iopscience.iop.org
The ground states of La 1-x Ca x MnO 3 change from double-exchange-associated
conducting ferromagnets at x< 0.50 to charge-ordered antiferromagnets at x> 0.50 even …

Magnetic frustration effects in single crystals

MH Phan, V Srinivas, SC Yu, NH Hur - Journal of applied physics, 2003 - pubs.aip.org
We investigated dc and ac susceptibilities of La 1− x Ca x MnO 3 (x= 0.2, 0.3) single crystals.
Obtained results show that La 0.8 Ca 0.2 MnO 3 is clearly magnetically more frustrated than …

Competition between charge ordering and ferromagnetism in manganese perovskites

PG Radaelli, G Iannone, DE Cox, M Marezio… - Physica B: Condensed …, 1997 - Elsevier
Manganese perovskites have recently been the subject of renewed attention, due to the
“colossal” magnetoresistance (CMR) and the coupled metal-insulator and magnetic …

Time dependent effects and transport evidence for phase separation in

M Roy, JF Mitchell, P Schiffer - Journal of Applied Physics, 2000 - pubs.aip.org
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 …

Lattice effects, stability under a high magnetic field, and magnetotransport properties of the charge-ordered mixed-valence perovskite

MR Ibarra, JM De Teresa, J Blasco, PA Algarabel… - Physical Review B, 1997 - APS
The highly Mn+ 4-doped compound La 0.35 Ca 0.65 MnO 3 has been studied up to high
temperature (700 K) by using thermal-expansion, magnetostriction, magnetoresistance, and …

Oxygen-isotope effect on the charge-ordering transition of

I Isaac, JP Franck - Physical Review B, 1998 - APS
The colossal-magnetoresistance compound La 1− x Ca x MnO 3 shows a transition to
commensurate charge ordering (Mn 3+–Mn 4+) for x= 50%. In the range x= 42–50%, the …

Bandwidth-controlled magnetic and electronic transitions in distorted perovskite

A Sundaresan, PL Paulose, R Mallik… - Physical Review B, 1998 - APS
We have investigated the effect of the increase of the one-electron eg bandwidth (W) on the
ferromagnetic and antiferromagnetic transitions in charge ordered La 0.5 Ca 0.5 MnO 3 by …

Ferromagnetic suppression of the charge-ordering temperature in

Y Jo, JG Park, CS Hong, NH Hur, HC Ri - Physical Review B, 2001 - APS
We present the results of our detailed dc magnetization and susceptibility studies on La 1− x
Ca x MnO 3 for 0.53<~ x<~ 0.70 in the charge-ordered (CO) and antiferromagnetic phase …

Inhomogeneous magnetism in La-doped I. Mesoscopic phase separation due to lattice-coupled ferromagnetic interactions

CD Ling, E Granado, JJ Neumeier, JW Lynn… - Physical Review B, 2003 - APS
A detailed investigation of mesoscopic magnetic and crystallographic phase separation in
Ca 1− x La x MnO 3, 0.00<~ x<~ 0. 2 0, is reported. Neutron powder diffraction and dc …

Electron magnetic resonance in  Crossing through the boundary between ferromagnetic insulating and metallic ground states

AI Shames, E Rozenberg, G Gorodetsky, YM Mukovskii - Physical Review B, 2003 - APS
Electron magnetic resonance (EMR) measurements were employed for studying the
magnetic state of La 1− x Ca x MnO 3 crystalline samples with x= 0.18, 0.20, and 0.22. It is …