Observation ofS=1/2 degrees of freedom in anS=1 linear-chain Heisenberg antiferromagnet

1990 ◽  
Vol 65 (25) ◽  
pp. 3181-3184 ◽  
Author(s):  
M. Hagiwara ◽  
K. Katsumata ◽  
Ian Affleck ◽  
B. I. Halperin ◽  
J. P. Renard
Keyword(s):  
Degrees Of Freedom ◽  
Linear Chain ◽  
Heisenberg Antiferromagnet

OBSERVATION OF FRACTIONAL SPIN DEGREES OF FREEDOM IN AN S=1 LINEAR CHAIN HEISENBERG ANTIFERROMAGNET

1991 ◽  
Vol 05 (11) ◽  
pp. 741-746
Author(s):  
M. HAGIWARA ◽  
K. KATSUMATA
Keyword(s):  
Electron Spin Resonance ◽  
Solid State ◽  
Electron Spin ◽  
Degrees Of Freedom ◽  
Linear Chain ◽  
Valence Bond ◽  
Heisenberg Antiferromagnet ◽  
Fractional Spin ◽  
Spin Resonance ◽  
Valence Bond Solid

We have studied the typical spin one linear chain Heisenberg antiferromagnet, Ni ( C 2 H 8 N 2)2 NO 2( ClO 4) containing a small amount of Cu2+ by electron spin resonance (ESR) technique. The ESR results are successfully explained by the model that the valence bonds in the valence bond solid state are broken at the Cu 2+ sites resulting in fractional spin degrees of freedom at the Ni 2+ sites neighboring the Cu 2+.

Observation of spin-glass freezing in the S=1 linear-chain Heisenberg antiferromagnet NENP

1996 ◽  
Vol 79 (8) ◽  
pp. 6167 ◽  
Author(s):  
M. Hagiwara ◽  
K. Katsumata ◽  
S. Sasaki ◽  
N. Narita ◽  
I. Yamada ◽  
...  
Keyword(s):  
Spin Glass ◽  
Linear Chain ◽  
Heisenberg Antiferromagnet

The Debye theory of solid-state heat capacities

2021 ◽  
pp. 295-309
Author(s):  
Geoffrey Brooker
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Classical Limit ◽  
Degrees Of Freedom ◽  
Linear Chain ◽  
Heat Capacities ◽  
Debye Theory ◽  
State Heat ◽  
Equipartition Of Energy ◽  
Reasonable Step

“The Debye theory of solid-state heat capacities” gives a careful account of the Debye cut-off. We start by looking at a monatomic linear chain, leading to degrees of freedom and the equipartition of energy at the high-temperature (classical) limit. Reasonable approximations lead more naturally to the Born–von Karman model than to Debye, but Debye follows via a further reasonable step.

Low-temperature magnetic measurements of anS=1 linear-chain Heisenberg antiferromagnet

1992 ◽  
Vol 46 (13) ◽  
pp. 8655-8658 ◽  
Author(s):  
O. Avenel ◽  
J. Xu ◽  
J. S. Xia ◽  
M-F. Xu ◽  
B. Andraka ◽  
...  
Keyword(s):  
Low Temperature ◽  
Magnetic Measurements ◽  
Linear Chain ◽  
Heisenberg Antiferromagnet

Spin Dynamics in an Alternating Linear-Chain Heisenberg Antiferromagnet

1978 ◽  
Vol 41 (21) ◽  
pp. 1520-1522 ◽  
Author(s):  
K. M. Diederix ◽  
J. P. Groen ◽  
T. O. Klaassen ◽  
N. J. Poulis
Keyword(s):  
Spin Dynamics ◽  
Linear Chain ◽  
Heisenberg Antiferromagnet

Hyperfine structure due to the S =½ degrees of freedom in an S = 1 linear-chain antiferromagnet

1992 ◽  
Vol 104-107 ◽  
pp. 839-840 ◽  
Author(s):  
M. Hagiwara ◽  
K. Katsumata ◽  
J.P. Renard ◽  
I. Affleck ◽  
B.I. Halperin
Keyword(s):  
Hyperfine Structure ◽  
Degrees Of Freedom ◽  
Linear Chain

Synthesis, crystal structure and magnetic properties of a new copper oxo-antimony sulphate CuSb6O8(SO4)2

2016 ◽  
Vol 45 (1) ◽  
pp. 392-396 ◽  
Author(s):  
Iwan Zimmermann ◽  
Reinhard K. Kremer ◽  
Shichao Hu ◽  
Mats Johnsson
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Long Range ◽  
Linear Chain ◽  
Heisenberg Antiferromagnet ◽  
Antiferromagnetic Ordering

The crystal structure of the new compound CuSb6O8(SO4)2 is made up of charge neutral layers with long antimony oxygen distances present in between the layers. CuSb6O8(SO4)2 constitutes a linear chain S = 1/2 Heisenberg antiferromagnet (J ∼ 2.8 K) which undergoes long-range antiferromagnetic ordering at 0.69 K.

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