Published March 2007
| Version v1
Journal article
Impurity- and field-induced magnetic orderings in doped quantum antiferromagnet TlCu1-xMgxCl3
Creators
- 1. Department of Frontier Research and Technology, Headquarters for Innovative Cooperation and Development, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501 (Japan)
- 2. Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro-ku, Tokyo 152-8551 (Japan)
- 3. Hahn-Meitner-Institut, Glienicker Strasse 100, D-14109 Berlin (Germany)
Description
TlCuCl3 is a spin-12 magnetic insulator with a spin gap Δ/2μB=5.5T. Its magnetic properties are described by a three-dimensionally coupled spin dimer model. Tl(Cu1-xMgx)Cl3 doped with nonmagnetic Mg2+ undergoes impurity-induced magnetic ordering. Because a finite gap for triplet excitations still remains, this doped system can also undergo magnetic-field-induced magnetic ordering. In order to investigate the phase diagram of TlCu1-xMgxCl3 with x∼0.01, we performed specific heat measurements and neutron scattering experiments in a magnetic field. It was found that impurity- and field-induced ordered phases are the same, and that the gapped spin liquid state observed in pure TlCuCl3 is completely wiped out by such a weak doping
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2006.10.378;
- PII
- S0304-8853(06)01586-1;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 310
- Journal Issue
- 2
- Journal Page Range
- p. 1357-1359
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- 17. international conference on magnetism
- Dates
- 20-25 Aug 2006
- Place
- Kyoto (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39029717
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COPPER CHLORIDES; DOPED MATERIALS; ELASTIC SCATTERING; EXCITATION; IMPURITIES; MAGNESIUM COMPOUNDS; MAGNESIUM IONS; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MAGNETIZATION; NEUTRON DIFFRACTION; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; SPECIFIC HEAT; SPIN; THALLIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ANGULAR MOMENTUM; CHARGED PARTICLES; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; COPPER COMPOUNDS; COPPER HALIDES; DIAGRAMS; DIFFRACTION; ENERGY-LEVEL TRANSITIONS; HALIDES; HALOGEN COMPOUNDS; INFORMATION; IONS; MATERIALS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.