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  4. Anisotropic Cascade of Field-Induced Phase Transitions in the Frustrated Spin-Ladder System BiCu_{2}PO_{6}
 
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research article

Anisotropic Cascade of Field-Induced Phase Transitions in the Frustrated Spin-Ladder System BiCu_{2}PO_{6}

Kohama, Yoshimitsu
•
Wang, Shuang  
•
Uchida, Atsuko
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2012
Physical Review Letters

BiCu2PO6 is a frustrated two-leg spin-ladder compound with a spin gap that can be closed with a magnetic field of approximately 20 T. This quantum phase transition and its related phase diagram as a function of magnetic field and temperature (H, T) are investigated up to 60 T by means of specific heat, magnetocaloric effect, magnetization, and magnetostriction measurements. In contrast to other gapped quantum magnets, BiCu2PO6 undergoes a series of unexpected first-and second-order phase transitions when an external magnetic field is applied along the crystallographic c axis. The application of a magnetic field along the b axis induces two second-order phase transitions. We propose that the anisotropy and complex phase diagram result from the interplay between strong geometrical frustration and spin-orbit interaction necessary for the description of this fascinating magnetic system.

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Type
research article
DOI
10.1103/PhysRevLett.109.167204
Web of Science ID

WOS:000309905400020

Author(s)
Kohama, Yoshimitsu
•
Wang, Shuang  
•
Uchida, Atsuko
•
Prsa, Krunoslav  
•
Zvyagin, Sergei
•
Skourski, Yuri
•
Mcdonald, Ross
•
Balicas, Luis
•
Rønnow, Henrik  
•
Rüegg, Christian
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Date Issued

2012

Publisher

Amer Physical Soc

Published in
Physical Review Letters
Volume

109

Issue

16

Article Number

167204

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LQM  
Available on Infoscience
October 19, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/86219
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