scholarly journals The Paramagnetic Correlation Length of Mn Thin Films

1994 ◽  
Vol 375 ◽  
Author(s):  
D. N. MclLroy ◽  
P. A. Dowben
Keyword(s):  
Long Range ◽  
Short Range ◽  
Magnetic Order ◽  
Magnetic Circular Dichroism ◽  
Mean Field Theory ◽  
Mean Field ◽  
Branching Ratio ◽  
Decay Length ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order

AbstractWe have utilized Ginzberg-Landau mean field theory to analyze the branching ratio and soft X-ray magnetic circular dichroism measurements of the L3 and L2 adsorption edges of thin Mn overlayers on ferromagnetic fcc Co(001) at room temperature. We have determined a short range magnetic correlation of 4.25Å and that the long range magnetic magnetic order has a decay length of 1.29Å. These results indicate that the first monolayer of Mn ferromagnetically couple with the Co substrate. The paramagnetic Mn layer exhibits short range magnetic order, but lacks long range magnetic order. Due to the exponential decrease of both the branching ratio and dichroism signals, we have concluded that the magnetization of the Mn overlayer is substrate induced.

scholarly journals Short Range and Long Range Magnetic Order in 1T-Li2NiO2

1993 ◽  
Vol 105 (2) ◽  
pp. 410-416 ◽  
Author(s):  
I.J. Davidson ◽  
J.E. Greedan ◽  
U. Von Sacken ◽  
C.A. Michal ◽  
W.R. McKinnon
Keyword(s):  
Long Range ◽  
Short Range ◽  
Magnetic Order ◽  
Range Magnetic Order ◽  
Long Range Magnetic Order

Short-range and long-range magnetic order in Fe(Te1.5Se0.5)O5Cl

2020 ◽  
Vol 102 (21) ◽  
Author(s):  
E. S. Kozlyakova ◽  
K. N. Denisova ◽  
A. A. Eliseev ◽  
A. V. Moskin ◽  
A. Y. Akhrorov ◽  
...  
Keyword(s):  
Long Range ◽  
Short Range ◽  
Magnetic Order ◽  
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 and Short Range Magnetic Order in Orthorhombic LiMnO2

1997 ◽  
Vol 128 (2) ◽  
pp. 209-214 ◽  
Author(s):  
J.E. Greedan ◽  
N.P. Raju ◽  
I.J. Davidson
Keyword(s):  
Long Range ◽  
Short Range ◽  
Magnetic Order ◽  
Range Magnetic Order ◽  
Orthorhombic Limno2
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