Variation of the Neel temperature with magnetic dilution in CopMg1-pO

1986 ◽  
Vol 19 (31) ◽  
pp. L747-L751 ◽  
Author(s):  
R Kannan ◽  
A S Pavlovic ◽  
M S Seehra
Keyword(s):  
Neel Temperature ◽  
Néel Temperature ◽  
Magnetic Dilution

Magnetic dilution of a honeycomb lattice XY magnet CoTiO3

2022 ◽  
Author(s):  
Ezekiel James Horsley ◽  
Xin Rao ◽  
Sang Bum Yi ◽  
Young-June Kim
Keyword(s):  
Single Phase ◽  
Honeycomb Lattice ◽  
Neel Temperature ◽  
Néel Temperature ◽  
Antiferromagnetic Ordering ◽  
Microscopic Models ◽  
Magnetic Dilution ◽  
Magnetic Ions ◽  
Ordering Transition ◽  
Dilution Level

Abstract We report our study of cobalt (II) titanate, CoTiO3, in which magnetic Co ions are replaced by non-magnetic ions. The antiferromagnetic ordering transition of CoTiO3 around 37 K is described with ferromagnetic honeycomb layers coupled antiferromagnetically along the crystallographic c direction. The effect of magnetic dilution on the Néel temperature of this material is investigated through the doping of Zn2+ and Mg2+ in place of Co2+ for various dilution levels up to x + y = 0.46 in Co1-x-yZnxMgyTiO3. Single phase polycrystalline samples have been synthesized and their structural and magnetic properties have been examined. A linear relation between dilution and the Néel temperature is observed over a wide doping range. A linear extrapolation would suggest that the required dilution level to suppress magnetic order is around x + y ∽ 0.74, well beyond the classical percolation threshold. The implication of this observation for microscopic models for describing CoTiO3 is discussed.

The effect of high pressure on the Néel temperature of-manganese

1971 ◽  
Vol 47 (2) ◽  
pp. K99-K101 ◽  
Author(s):  
A. Sawaoka ◽  
T. Soma ◽  
S. Saito ◽  
Y. Endoh
Keyword(s):  
High Pressure ◽  
Neel Temperature ◽  
Néel Temperature

Conduction Characteristics of Charge Ordering Type Ferroelectrics,YFe2O4

2006 ◽  
Vol 966 ◽  
Author(s):  
Ken Imamura ◽  
Yoichi Horibe ◽  
Takeshi Yoshimura ◽  
Norifumi Fujimura ◽  
Shigeo Mori ◽  
...  
Keyword(s):  
Room Temperature ◽  
Inflection Point ◽  
Oxygen Deficiency ◽  
Complex Impedance ◽  
Charge Ordering ◽  
Neel Temperature ◽  
Ohmic Conduction ◽  
Néel Temperature ◽  
Impedance Measurements ◽  
Conduction Properties

ABSTRACTElectrical conduction properties of charge ordering type ferroelectrics YFe2O4 were investigated. YFe2O4 was synthesized in reduced atmosphere at 1200 °C. Oxygen partial pressure of the reduced atmosphere was controlled by the equilibrium state of CO and CO2. YFe2O4 is paramagnetic at room temperature and has Néel temperature around 250K. The Néel temperature was decreased with increasing the amount of oxygen deficiency. Moreover, YFe2O4 showed ohmic conduction from 260 to 100 K. The temperature dependence of the DC conductivity showed an inflection point at the Néel temperature, which indicated the development of charge ordering of Fe2+ and Fe3+ ions. From the complex impedance measurements, the equivalent circuits of YFe2O4 with different oxygen deficiency were determined at various temperatures.

Néel temperature of zinc-blende, MBE-grown MnTe layers: modification by the crystal growth conditions

2004 ◽  
Vol 1 (4) ◽  
pp. 953-956 ◽  
Author(s):  
W. Szuszkiewicz ◽  
E. Dynowska ◽  
J. Z. Domagala ◽  
E. Janik ◽  
E. Łusakowska ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Growth Conditions ◽  
Neel Temperature ◽  
Néel Temperature ◽  
Zinc Blende

Thickness Dependence of the Néel Temperature and TCR of MnSe Films

1994 ◽  
Vol 145 (1) ◽  
pp. 105-111 ◽  
Author(s):  
V. Thanigaimani ◽  
M. A. Angadi
Keyword(s):  
Thickness Dependence ◽  
Neel Temperature ◽  
Néel Temperature

scholarly journals 23Na NMR study of sodium order in NaxCoO2with 22 K Néel temperature

2012 ◽  
Vol 85 (13) ◽  
Author(s):  
H. Alloul ◽  
I. R. Mukhamedshin ◽  
A. V. Dooglav ◽  
Ya. V. Dmitriev ◽  
V.-C. Ciomaga ◽  
...  
Keyword(s):  
Neel Temperature ◽  
Néel Temperature ◽  
Nmr Study ◽  
23Na Nmr

Persistent spin waves above the Néel temperature inYMnO3

2007 ◽  
Vol 76 (21) ◽  
Author(s):  
Franz Demmel ◽  
Tapan Chatterji
Keyword(s):  
Spin Waves ◽  
Neel Temperature ◽  
Néel Temperature
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