Volume 103, Number 3, August 2013
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||28 August 2013|
Re-entrant magnetic-field–induced charge and spin gaps in the coupled dual-chain quasi–one-dimensional organic conductor perylene2[Pt(mnt)2]
1 Department of Physics and National High Magnetic Field Laboratory, Florida State University Tallahassee, FL 32301, USA
2 Instituto Tecnológico e Nuclear, Instituto Superior Técnico/CFMCUL - Estrada Nacional No. 10, Sacavém P-2686-953, Portugal, EU
3 Regroupement Québécois sur le Matériaux de Pointe, Département de Physique, Université de Sherbrooke Sherbrooke, Québec, Canada, J1K-2R1
Received: 2 May 2013
Accepted: 1 August 2013
An inductive method is used to follow the magnetic-field–dependent susceptibility of the coupled charge density wave (CDW) and spin-Peierls (SP) ordered state behavior in the dual-chain organic conductor perylene2[Pt(mnt)2]. In addition to the coexisting SP-CDW state phase below 8 K and 20 T, the measurements show that a second spin-gapped phase appears above 20 T that coincides with a field-induced insulating phase. The results support a strong coupling of the CDW and SP order parameters even in high magnetic fields, and provide new insight into the nature of the magnetic susceptibility of dual-chain spin and charge systems.
PACS: 71.45.Lr – Charge-density-wave systems / 75.25.Dk – Orbital, charge, and other orders, including coupling of these orders / 75.40.Gb – Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.)
© EPLA, 2013
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