Doping dependence of long-range magnetic order in thet-Jmodel

1993 ◽  
Vol 47 (1) ◽  
pp. 463-469 ◽  
Author(s):  
G. Khaliullin ◽  
P. Horsch
Keyword(s):  
Long Range ◽  
Magnetic Order ◽  
Doping Dependence ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order

scholarly journals Emergent long-range magnetic order in ultrathin (111)-oriented LaNiO3 films

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Margaret M. Kane ◽  
Arturas Vailionis ◽  
Lauren J. Riddiford ◽  
Apurva Mehta ◽  
Alpha T. N’Diaye ◽  
...  
Keyword(s):  
Long Range ◽  
Degrees Of Freedom ◽  
Magnetic Order ◽  
Magnetic Ordering ◽  
Anomalous Hall Effect ◽  
X Ray Diffraction ◽  
X Ray ◽  
Range Magnetic Order ◽  
Film Substrate ◽  
Long Range Magnetic Order

AbstractThe emergence of ferromagnetism in materials where the bulk phase does not show any magnetic order demonstrates that atomically precise films can stabilize distinct ground states and expands the phase space for the discovery of materials. Here, the emergence of long-range magnetic order is reported in ultrathin (111) LaNiO3 (LNO) films, where bulk LNO is paramagnetic, and the origins of this phase are explained. Transport and structural studies of LNO(111) films indicate that NiO6 octahedral distortions stabilize a magnetic insulating phase at the film/substrate interface and result in a thickness-dependent metal–insulator transition at t = 8 unit cells. Away from this interface, distortions relax and bulk-like conduction is regained. Synchrotron x-ray diffraction and dynamical x-ray diffraction simulations confirm a corresponding out-of-plane unit-cell expansion at the interface of all films. X-ray absorption spectroscopy reveals that distortion stabilizes an increased concentration of Ni2+ ions. Evidence of long-range magnetic order is found in anomalous Hall effect and magnetoresistance measurements, likely due to ferromagnetic superexchange interactions among Ni2+–Ni3+ ions. Together, these results indicate that long-range magnetic ordering and metallicity in LNO(111) films emerges from a balance among the spin, charge, lattice, and orbital degrees of freedom.

High-resolution polarization analysis study of long-range magnetic order in cuprates

2005 ◽  
Vol 71 (21) ◽  
Author(s):  
Zahirul Islam ◽  
D. Haskel ◽  
J. C. Lang ◽  
G. Srajer ◽  
X. Liu ◽  
...  
Keyword(s):  
High Resolution ◽  
Long Range ◽  
Magnetic Order ◽  
Polarization Analysis ◽  
Analysis Study ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order

Gd substitutions in the TmCo2Laves phase: the onset of long-range magnetic order in the itinerant subsystem

1995 ◽  
Vol 7 (3) ◽  
pp. 597-610 ◽  
Author(s):  
E Gratz ◽  
R Hauser ◽  
A Lindbaum ◽  
M Maikis ◽  
R Resel ◽  
...  
Keyword(s):  
Long Range ◽  
Magnetic Order ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order

scholarly journals Long-range magnetic order and the Darwin Lagrangian

2000 ◽  
Vol 61 (2) ◽  
pp. 1199-1205 ◽  
Author(s):  
Vishal Mehra ◽  
Jayme De Luca
Keyword(s):  
Long Range ◽  
Magnetic Order ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order
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