This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.105.037206 in citations.
Please use the identifier: http://hdl.handle.net/2128/7273 in citations.
Heat capacity reveals the physics of a frustrated spin tube
Heat capacity reveals the physics of a frustrated spin tube
We report on theoretical and experimental results concerning the low-temperature specific heat of the frustrated spin-tube material [(CuCl(2)tachH)(3)Cl]Cl-2 (tach denotes 1,3,5-triaminocyclohexane). This substance turns out to be an unusually perfect spin-tube system which allows to study the physi...
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Personal Name(s): | Ivanov, N.B. |
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Schnack, J. / Schnalle, R. / Richter, J. / Kögerler, p. / Newton, G.N. / Cronin, L. / Oshima, Y. / Nojiri, H. | |
Contributing Institute: |
Elektronische Eigenschaften; IFF-9 JARA-FIT; JARA-FIT |
Published in: | Physical review letters, 105 (2010) S. 037206 |
Imprint: |
College Park, Md.
APS
2010
|
Physical Description: |
037206 |
DOI: |
10.1103/PhysRevLett.105.037206 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physical Review Letters
105 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/7273 in citations.
We report on theoretical and experimental results concerning the low-temperature specific heat of the frustrated spin-tube material [(CuCl(2)tachH)(3)Cl]Cl-2 (tach denotes 1,3,5-triaminocyclohexane). This substance turns out to be an unusually perfect spin-tube system which allows to study the physics of quasione- dimensional antiferromagnetic structures in rather general terms. An analysis of the specific-heat data demonstrates that at low enough temperatures the system exhibits a Tomonaga-Luttinger liquid behavior corresponding to an effective spin-3/2 antiferromagnetic Heisenberg chain with short-range exchange interactions. On the other hand, around 2 K the composite spin structure of the chain is revealed through a Schottky-type peak in the specific heat. We argue that the dominating contribution to the peak originates from gapped magnon-type excitations related to the internal degrees of freedom of the rung spins. |