Low-dimensional magnetism of spin-1/2 chain systems α- And β-TeVO 4: A comparative study

V. Gnezdilov; P. Lemmens; D. Wulferding; Yu Pashkevich; K. Lamonova; K. Y. Choi; O. Afanasiev; S. Gnatchenko; H. Berger

Low-dimensional magnetism of spin-1/2 chain systems α- And β-TeVO ₄: A comparative study

V. Gnezdilov
, P. Lemmens
, D. Wulferding
, Yu Pashkevich
, K. Lamonova
, K. Y. Choi
, O. Afanasiev
, S. Gnatchenko
, H. Berger

NASU - B. Verkin Institute for Low Temperature Physics and Engineering
Technical University of Braunschweig
NASU - Donetsk Institute for Physics and Engineering
Chung-Ang University
Swiss Federal Institute of Technology Lausanne

Research output: Contribution to journal › Article › peer-review

Abstract

We present a comparative study of the low-dimensional compounds α- and β-TeVO ₄. Our data clearly show that the change in the local coordination geometry of V ⁴⁺ ions comparing α- and β-TeVO ₄ leads to a drastic differences in the magnetic properties. Despite sharing the same crystal structure, the two compounds realize different magnetic exchange topologies. Both compounds exhibit a transition from ferro- to antiferromagnetic correlations with decreasing temperature. This effect however is driven by different mechanisms for both compounds. Additionally, a dimensional crossover is found in β-TeVO ₄.

Original language	English
Pages (from-to)	715-727
Number of pages	13
Journal	Fizika Nizkikh Temperatur
Volume	38
Issue number	7
State	Published - Jul 2012
Externally published	Yes

Keywords

Low-dimensional magnetic systems
Phononic and magnetic excitations
Raman scattering

Cite this

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title = "Low-dimensional magnetism of spin-1/2 chain systems α- And β-TeVO 4: A comparative study",

abstract = "We present a comparative study of the low-dimensional compounds α- and β-TeVO 4. Our data clearly show that the change in the local coordination geometry of V 4+ ions comparing α- and β-TeVO 4 leads to a drastic differences in the magnetic properties. Despite sharing the same crystal structure, the two compounds realize different magnetic exchange topologies. Both compounds exhibit a transition from ferro- to antiferromagnetic correlations with decreasing temperature. This effect however is driven by different mechanisms for both compounds. Additionally, a dimensional crossover is found in β-TeVO 4.",

keywords = "Low-dimensional magnetic systems, Phononic and magnetic excitations, Raman scattering",

author = "V. Gnezdilov and P. Lemmens and D. Wulferding and Yu Pashkevich and K. Lamonova and Choi, \{K. Y.\} and O. Afanasiev and S. Gnatchenko and H. Berger",

year = "2012",

month = jul,

language = "English",

volume = "38",

pages = "715--727",

journal = "Fizika Nizkikh Temperatur",

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TY - JOUR

T1 - Low-dimensional magnetism of spin-1/2 chain systems α- And β-TeVO 4

T2 - A comparative study

AU - Gnezdilov, V.

AU - Lemmens, P.

AU - Wulferding, D.

AU - Pashkevich, Yu

AU - Lamonova, K.

AU - Choi, K. Y.

AU - Afanasiev, O.

AU - Gnatchenko, S.

AU - Berger, H.

PY - 2012/7

Y1 - 2012/7

N2 - We present a comparative study of the low-dimensional compounds α- and β-TeVO 4. Our data clearly show that the change in the local coordination geometry of V 4+ ions comparing α- and β-TeVO 4 leads to a drastic differences in the magnetic properties. Despite sharing the same crystal structure, the two compounds realize different magnetic exchange topologies. Both compounds exhibit a transition from ferro- to antiferromagnetic correlations with decreasing temperature. This effect however is driven by different mechanisms for both compounds. Additionally, a dimensional crossover is found in β-TeVO 4.

AB - We present a comparative study of the low-dimensional compounds α- and β-TeVO 4. Our data clearly show that the change in the local coordination geometry of V 4+ ions comparing α- and β-TeVO 4 leads to a drastic differences in the magnetic properties. Despite sharing the same crystal structure, the two compounds realize different magnetic exchange topologies. Both compounds exhibit a transition from ferro- to antiferromagnetic correlations with decreasing temperature. This effect however is driven by different mechanisms for both compounds. Additionally, a dimensional crossover is found in β-TeVO 4.

KW - Low-dimensional magnetic systems

KW - Phononic and magnetic excitations

KW - Raman scattering

UR - https://www.scopus.com/pages/publications/84862020224

M3 - Article

AN - SCOPUS:84862020224

SN - 0132-6414

VL - 38

SP - 715

EP - 727

JO - Fizika Nizkikh Temperatur

JF - Fizika Nizkikh Temperatur

IS - 7

ER -

Low-dimensional magnetism of spin-1/2 chain systems α- And β-TeVO ₄: A comparative study

Abstract

Keywords

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