Longitudinal spin fluctuations in the nearly isotropic ferromagnetCdCr2Se4: Scaling behavior outside the critical region

1999 ◽  
Vol 60 (2) ◽  
pp. R734-R737 ◽  
Author(s):  
I. D. Luzyanin ◽  
A. G. Yashenkin ◽  
S. V. Maleyev ◽  
E. A. Zaitseva ◽  
V. P. Khavronin
2004 ◽  
Vol 281 (2-3) ◽  
pp. 388-393 ◽  
Author(s):  
S. Ronneteg ◽  
R. Berger ◽  
R.Z. Levitin ◽  
E.A. Popova ◽  
R.M. Scherbov ◽  
...  

2005 ◽  
Vol 72 (10) ◽  
Author(s):  
S. Shallcross ◽  
A. E. Kissavos ◽  
V. Meded ◽  
A. V. Ruban

1991 ◽  
Vol 43 (1) ◽  
pp. 575-584 ◽  
Author(s):  
P. Böni ◽  
J. L. Martnez ◽  
J. M. Tranquada

1988 ◽  
Vol 63 (8) ◽  
pp. 3820-3822
Author(s):  
U. Balucani ◽  
R. Vaia ◽  
A. Federighi ◽  
V. Tognetti

Author(s):  
A. Z. Menshikov ◽  
V. A. Kazantsev ◽  
E. Z. Valiev ◽  
S. M. Podgornykh

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Lin Hao ◽  
Zhentao Wang ◽  
Junyi Yang ◽  
D. Meyers ◽  
Joshua Sanchez ◽  
...  

AbstractAs a hallmark of electronic correlation, spin-charge interplay underlies many emergent phenomena in doped Mott insulators, such as high-temperature superconductivity, whereas the half-filled parent state is usually electronically frozen with an antiferromagnetic order that resists external control. We report on the observation of a positive magnetoresistance that probes the staggered susceptibility of a pseudospin-half square-lattice Mott insulator built as an artificial SrIrO3/SrTiO3 superlattice. Its size is particularly large in the high-temperature insulating paramagnetic phase near the Néel transition. This magnetoresistance originates from a collective charge response to the large longitudinal spin fluctuations under a linear coupling between the external magnetic field and the staggered magnetization enabled by strong spin-orbit interaction. Our results demonstrate a magnetic control of the binding energy of the fluctuating particle-hole pairs in the Slater-Mott crossover regime analogous to the Bardeen-Cooper-Schrieffer-to-Bose-Einstein condensation crossover of ultracold-superfluids.


1990 ◽  
Vol 67 (9) ◽  
pp. 5436-5438 ◽  
Author(s):  
P. Böni ◽  
J. L. Martínez ◽  
J. M. Tranquada

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