scholarly journals Destruction of long-range magnetic order in an external magnetic field and the associated spin dynamics in Cu2GaBO5 and Cu2AlBO5 ludwigites

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
A. A. Kulbakov ◽  
R. Sarkar ◽  
O. Janson ◽  
S. Dengre ◽  
T. Weinhold ◽  
...  
2003 ◽  
Vol 67 (5) ◽  
Author(s):  
B. Khaykovich ◽  
R. J. Birgeneau ◽  
F. C. Chou ◽  
R. W. Erwin ◽  
M. A. Kastner ◽  
...  

2002 ◽  
Vol 66 (1) ◽  
Author(s):  
B. Khaykovich ◽  
Y. S. Lee ◽  
R. W. Erwin ◽  
S.-H. Lee ◽  
S. Wakimoto ◽  
...  

2012 ◽  
Vol 109 (22) ◽  
Author(s):  
M. Pregelj ◽  
A. Zorko ◽  
O. Zaharko ◽  
D. Arčon ◽  
M. Komelj ◽  
...  

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Margaret M. Kane ◽  
Arturas Vailionis ◽  
Lauren J. Riddiford ◽  
Apurva Mehta ◽  
Alpha T. N’Diaye ◽  
...  

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.


2005 ◽  
Vol 71 (21) ◽  
Author(s):  
Zahirul Islam ◽  
D. Haskel ◽  
J. C. Lang ◽  
G. Srajer ◽  
X. Liu ◽  
...  

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

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