Long-range magnetic ordering of quasi-one-dimensional S=1/2 Heisenberg antiferromagnet Sr{sub 2}Cu(PO{sub 4}){sub 2}

Journal Article · Tue Nov 15 00:00:00 EST 2005 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2005.08.030· OSTI ID:20784784

Belik, Alexei A ^[1]; Uji, Shinya ^[2]; Terashima, Taichi ^[2]; Takayama-Muromachi, Eiji ^[3]

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1. International Center for Young Scientists, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044 (Japan)
2. Nano-quantum Transport Group, Nanomaterials Laboratory, National Institute for Materials Science, 3-13 Sakura, Tsukuba, Ibaraki 305-0003 (Japan)
3. Advanced Materials Laboratory, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044 (Japan)

Magnetic properties of quasi-one-dimensional S=1/2 Heisenberg antiferromagnet Sr{sub 2}Cu(PO{sub 4}){sub 2} were investigated by temperature and field dependence of AC susceptibility down to 0.03K. A sharp peak was observed at T{sub N}=0.085K on the temperature dependence of AC susceptibility indicating long-range magnetic ordering. Taking into account the exchange constant, J/k{sub B}=143K (Hamiltonian =J-bar S{sub i}S{sub i+1}), the ratio k{sub B}T{sub N}/J is 0.06%. Sr{sub 2}Cu(PO{sub 4}){sub 2} is, therefore, one of the best one-dimensional Heisenberg antiferromagnet known so far.

• OSTI ID: 20784784
• Journal Information: Journal of Solid State Chemistry, Vol. 178, Issue 11; Other Information: DOI: 10.1016/j.jssc.2005.08.030; PII: S0022-4596(05)00384-1; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-4596
• Country of Publication: United States
• Language: English

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