Low-temperature magnetic measurements of an [ital S]=1 linear-chain Heisenberg antiferromagnet

Journal Article · Thu Oct 01 04:00:00 EDT 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.46.8655· OSTI ID:6976750

Avenel, O; Xu, J; Xia, J S; Xu, M; Andraka, B; Lang, T; Moyland, P L; Ni, W; Signore, P J.C.; van Woerkens, C M.C.M.; Adams, E D; Ihas, G G; Meisel, M W; Nagler, S E; Sullivan, N S; Takano, Y ^[1]; Talham, D R ^[2]; Goto, T ^[3]; Fujiwara, N ^[4]

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1. Department of Physics and Center for Ultra-Low Temperature Research, University of Florida, 215 Williamson Hall, Gainesville, Florida 32611 (United States)
2. Department of Chemistry, University of Florida, 200 Leigh Hall, Gainesville, Florida 32611 (United States)
3. Department of Physics, College of Liberal Arts and Sciences, Kyoto University, Kyoto 606 (Japan)
4. Department of Physics, Faculty of Sciences, Kyoto University, Kyoto 606 (Japan)

The temperature-dependent magnetic susceptibility, [chi]([ital T]), of two pure samples of the [ital S]=1 linear-chain Heisenberg antiferromagnet Ni(C[sub 2]H[sub 8]N[sub 2])[sub 2]NO[sub 2](ClO[sub 4]), commonly known as NENP, has been measured from approximately 300 K to 300 [mu]K. Our measurements of [chi]([ital T]) are in agreement with existing results of other researchers who worked above 1.2 K. Below 1.2 K, [chi]([ital T]) increases with decreasing temperature. The results suggest that the low-temperature increase of [chi]([ital T]) is not a consequence of a single source of paramagnetic impurities in the samples but may arise from [ital S]=1/2 end-chain interactions.

• DOE Contract Number: FG05-86ER45268; FG05-86ER45280
• OSTI ID: 6976750
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 46:13; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606* -- Other Materials-- Physical Properties-- (1992-)
ANTIFERROMAGNETIC MATERIALS
FREQUENCY DEPENDENCE
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATERIALS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K