Dynamically generated dimension reduction and crossover in a spin-orbital model

Theja N. De Silva; Michael Ma; Fu Chun Zhang

doi:10.1103/PhysRevB.70.100405

Dynamically generated dimension reduction and crossover in a spin-orbital model

Theja N. De Silva, Michael Ma, Fu Chun Zhang

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1 Scopus citations

Abstract

We study a spin-orbital model in which the spin-spin interaction couples linearly to the orbital isospin. Fluctuations drive the transition from a paramagnetic state to a C-type-ordered state into a strongly first-order one, as observed in V₂O₃. At T=O, there is a ferro-orbital-C-spin to ferro-orbital-G-spin transition. Close to the transition point, the system shows dynamically generated dimension reduction and crossover, resulting in one or more spin reentrant transitions.

Original language	English (US)
Article number	100405
Pages (from-to)	100405-1-100405-4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	70
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.70.100405
State	Published - Sep 2004
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.70.100405

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title = "Dynamically generated dimension reduction and crossover in a spin-orbital model",

abstract = "We study a spin-orbital model in which the spin-spin interaction couples linearly to the orbital isospin. Fluctuations drive the transition from a paramagnetic state to a C-type-ordered state into a strongly first-order one, as observed in V2O3. At T=O, there is a ferro-orbital-C-spin to ferro-orbital-G-spin transition. Close to the transition point, the system shows dynamically generated dimension reduction and crossover, resulting in one or more spin reentrant transitions.",

author = "{De Silva}, {Theja N.} and Michael Ma and Zhang, {Fu Chun}",

note = "Funding Information: This work was in part supported by DE/FG03-01ER45687, the University of Cincinnati for financial support as a URC Summer Student, and by the Chinese Academy of Sciences. We thank Dung-Hai Lee, Pak-Wo Leung, and R. J Gooding for useful discussions.",

year = "2004",

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doi = "10.1103/PhysRevB.70.100405",

language = "English (US)",

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T1 - Dynamically generated dimension reduction and crossover in a spin-orbital model

AU - De Silva, Theja N.

AU - Ma, Michael

AU - Zhang, Fu Chun

N1 - Funding Information: This work was in part supported by DE/FG03-01ER45687, the University of Cincinnati for financial support as a URC Summer Student, and by the Chinese Academy of Sciences. We thank Dung-Hai Lee, Pak-Wo Leung, and R. J Gooding for useful discussions.

PY - 2004/9

Y1 - 2004/9

N2 - We study a spin-orbital model in which the spin-spin interaction couples linearly to the orbital isospin. Fluctuations drive the transition from a paramagnetic state to a C-type-ordered state into a strongly first-order one, as observed in V2O3. At T=O, there is a ferro-orbital-C-spin to ferro-orbital-G-spin transition. Close to the transition point, the system shows dynamically generated dimension reduction and crossover, resulting in one or more spin reentrant transitions.

AB - We study a spin-orbital model in which the spin-spin interaction couples linearly to the orbital isospin. Fluctuations drive the transition from a paramagnetic state to a C-type-ordered state into a strongly first-order one, as observed in V2O3. At T=O, there is a ferro-orbital-C-spin to ferro-orbital-G-spin transition. Close to the transition point, the system shows dynamically generated dimension reduction and crossover, resulting in one or more spin reentrant transitions.

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JF - Physical Review B - Condensed Matter and Materials Physics

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ER -

Dynamically generated dimension reduction and crossover in a spin-orbital model

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