Magnetic field influence on the Néel, dimer, and spin-liquid states of the low-dimensional antiferromagnetsNiTa2O6andCoSb2O6

2014 ◽  
Vol 90 (22) ◽  
Author(s):  
A. B. Christian ◽  
S. H. Masunaga ◽  
A. T. Schye ◽  
A. Rebello ◽  
J. J. Neumeier ◽  
...  
Author(s):  
Mohamed Azzouz

Had magnetic monopoles been ubiquitous as electrons do, we would have probably had a different form of matter, and power plants based on currents of these magnetic charges would have been a familiar scene of modern technology. Magnetic dipoles do exist however, and in principle one could wonder if we can use them to generate magnetic currents. In the present work, we discuss the issue of generating magnetic currents and magnetic thermal currents in electrically-insulating low-dimensional Heisenberg antiferromagnets by invoking the (broken) electricity-magnetism duality symmetry. The ground state of these materials is a spin-liquid state that can be described well via the Jordan-Wigner fermions, which permit an easy definition of the magnetic particle and thermal currents. The spin-liquid states in these antiferromagnets are either gapless or gapped liquids of spinless fermions whose flow defines a current just as the one defined for electrons in a Fermi liquid. The driving force for the magnetic current is a magnetic field with a gradient along the magnetic conductor. The present work is about claiming that what the experiments in spintronics attempt to do is trying to treat the magnetic degrees of freedoms on the same footing as the electronic ones.


2019 ◽  
Vol 11 (5) ◽  
pp. 05013-1-05013-5
Author(s):  
V. Ye. Marchuk ◽  
◽  
M. V. Kindrachuk ◽  
V. I. Mirnenko ◽  
R. G. Mnatsakanov ◽  
...  

2008 ◽  
Author(s):  
Amange F. Boya ◽  
Abdulghafoor I. Abdullah

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3625-3628
Author(s):  
M. OGITA ◽  
T. ITO ◽  
M. ISAI ◽  
I. MOGI ◽  
S. AWAJI ◽  
...  

Hall measurements of liquid metals, using two-frequency, ac-dc and simultaneous methods are described. The Hall effect has been measured in Hg and Ga metals, in both solid and liquid states. The magnetoresistance and Hall effects have also been measured in an InSb single crystal, which exhibited magnetoresistance even in low magnetic field, and in Si , which did not exhibit magnetoresistance in low magnetic field. In order to investigate the magnetic field dependence of the observed galvanomagnetic effects for solid and liquid state metals, and for semiconductors, Hall measurements in high magnetic field, up to ±9 T, were also performed.


2015 ◽  
Vol 4 (1) ◽  
pp. 63-68 ◽  
Author(s):  
Andrei L. Tchougréeff ◽  
Richard Dronskowski

2014 ◽  
Vol 31 (86(3/2014)) ◽  
pp. 425-432 ◽  
Author(s):  
Łukasz Pleskacz ◽  
Elżbieta Fornalik-Wajs ◽  
Aleksandra Roszko

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