Jahn-Teller vibrational anisotropy determines the magnetic structure in orthomanganites

2001 ◽  
Vol 64 (5) ◽  
Author(s):  
F. Rivadulla ◽  
M. A. López-Quintela ◽  
J. Mira ◽  
J. Rivas
Keyword(s):  
Magnetic Structure ◽  
Jahn Teller ◽  
Vibrational Anisotropy

Erratum: Magnetic structure of the Jahn-Teller systemLaTiO3[Phys. Rev. B71, 144412 (2005)]

2007 ◽  
Vol 76 (5) ◽  
Author(s):  
Robert Schmitz ◽  
Ora Entin-Wohlman ◽  
Amnon Aharony ◽  
A. Brooks Harris ◽  
Erwin Müller-Hartmann
Keyword(s):  
Magnetic Structure ◽  
Jahn Teller

scholarly journals Magnetic structure of the Jahn-Teller systemLaTiO3

2005 ◽  
Vol 71 (14) ◽  
Author(s):  
Robert Schmitz ◽  
Ora Entin-Wohlman ◽  
Amnon Aharony ◽  
A. Brooks Harris ◽  
Erwin Müller-Hartmann
Keyword(s):  
Magnetic Structure ◽  
Jahn Teller

Magnetic structure and collective Jahn–Teller distortions in nanostructured particles of CuFe2O4

2006 ◽  
Vol 253 (5) ◽  
pp. 2589-2596 ◽  
Author(s):  
I. Nedkov ◽  
R.E. Vandenberghe ◽  
Ts. Marinova ◽  
Ph. Thailhades ◽  
T. Merodiiska ◽  
...  
Keyword(s):  
Magnetic Structure ◽  
Nanostructured Particles ◽  
Jahn Teller

X-Ray Investigations and Magnetic Properties of CuCr2-xSnxSe4 - Compounds

2010 ◽  
Vol 163 ◽  
pp. 208-212 ◽  
Author(s):  
Izabela Jendrzejewska ◽  
Paweł Zajdel ◽  
Jerzy Mroziński ◽  
Ewa Maciążek ◽  
Tomasz Goryczka ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Transition Temperature ◽  
Spin Glass ◽  
Saturation Magnetization ◽  
Magnetic Structure ◽  
Spinel Structure ◽  
X Ray ◽  
Sn Doping ◽  
Jahn Teller ◽  
Local Distortions

We have observed that doping CuCr2Se4 with tin introduces and then increases the tetrahedral deformation of the spinel structure, which can be connected with the Jahn-Teller (JT) distortion due to Cr2+ ions in antiprismatic environment. The presence of Cr2+ is corroborated by the increase of the saturation magnetization above the 6μB value expected for the 2 Cr3+ ions. In the high limit of the high Sn doping the deformation is decreased, which we attribute to elimination of the JT condition by the increased local distortions. With the tin doping the magnetic structure evolves from the ferromagnet, through spin-glass like to the antiferromagnetic due to increased AF coupling in the system. This is corroborated by the decreasing transition temperature and the Curie-Weiss parameter.

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