Orbital order and a canted phase in the paramagnetic and ferromagnetic states of 50% hole-doped colossal magnetoresistance manganites

2003 ◽  
Vol 67 (17) ◽  
Author(s):  
H. Kawano-Furukawa ◽  
R. Kajimoto ◽  
H. Yoshizawa ◽  
Y. Tomioka ◽  
H. Kuwahara ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Orbital Order ◽  
Canted Phase

Pressure-tuned colossal magnetoresistance effect in n-type CdCr2Se4

2021 ◽  
Vol 118 (26) ◽  
pp. 262407
Author(s):  
Bowen Zhang ◽  
Chuanchuan Gu ◽  
Chao An ◽  
Xuliang Chen ◽  
Yonghui Zhou ◽  
...  
Keyword(s):  
Colossal Magnetoresistance ◽  
Magnetoresistance Effect ◽  
Colossal Magnetoresistance Effect

scholarly journals Orbital order drives magnetic order in 5d1 and 5d2 double perovskite Mott insulators

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
Christopher Svoboda ◽  
Wenjuan Zhang ◽  
Mohit Randeria ◽  
Nandini Trivedi
Keyword(s):  
Magnetic Order ◽  
Double Perovskite ◽  
Mott Insulators ◽  
Orbital Order

scholarly journals Tuning of multiferroic order with Co doping in CuCr2O4 : Interplay between structure and orbital order

2019 ◽  
Vol 3 (10) ◽  
Author(s):  
A. Chatterjee ◽  
J. K. Dey ◽  
S. Majumdar ◽  
A.-C. Dippel ◽  
O. Gutowski ◽  
...  
Keyword(s):  
Orbital Order ◽  
Co Doping

scholarly journals Ultrafast dynamical Lifshitz transition

2021 ◽  
Vol 7 (17) ◽  
pp. eabd9275
Author(s):  
Samuel Beaulieu ◽  
Shuo Dong ◽  
Nicolas Tancogne-Dejean ◽  
Maciej Dendzik ◽  
Tommaso Pincelli ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Colossal Magnetoresistance ◽  
Surface Topology ◽  
Strongly Correlated ◽  
Many Body ◽  
Time Resolved ◽  
Weyl Semimetal ◽  
Lifshitz Transition ◽  
Fermi Surface Topology ◽  
Many Body Systems

Fermi surface is at the heart of our understanding of metals and strongly correlated many-body systems. An abrupt change in the Fermi surface topology, also called Lifshitz transition, can lead to the emergence of fascinating phenomena like colossal magnetoresistance and superconductivity. While Lifshitz transitions have been demonstrated for a broad range of materials by equilibrium tuning of macroscopic parameters such as strain, doping, pressure, and temperature, a nonequilibrium dynamical route toward ultrafast modification of the Fermi surface topology has not been experimentally demonstrated. Combining time-resolved multidimensional photoemission spectroscopy with state-of-the-art TDDFT+U simulations, we introduce a scheme for driving an ultrafast Lifshitz transition in the correlated type-II Weyl semimetal Td-MoTe2. We demonstrate that this nonequilibrium topological electronic transition finds its microscopic origin in the dynamical modification of the effective electronic correlations. These results shed light on a previously unexplored ultrafast scheme for controlling the Fermi surface topology in correlated quantum materials.

Colossal magnetoresistance and spin-glass properties of La1-xTexMnO3 (x = 0.04, 0.1)

2003 ◽  
Vol 48 (13) ◽  
pp. 1321-1324 ◽  
Author(s):  
Guotai Tan ◽  
Peng Duan ◽  
Shouyu Dai ◽  
Zhenghao Chen ◽  
Huibin Lu ◽  
...  
Keyword(s):  
Spin Glass ◽  
Colossal Magnetoresistance ◽  
Glass Properties
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