Abstract
The transport properties of the semimetallic quasi-one-dimensional S=1/2 antiferromagnet Yb4As3 have been studied by performing low-temperature (T≥0.02 K) and high magneticfield (B≤60 T) measurements of the electrical resistivity ρ(T, B). For T ≿ 2 K a ‘heavy-fermion’-like behavior Δρ(T)=AT 2 with huge and nearly field-independent coefficient A ≈ 3 µΩ cm/K2 is observed, whereas at lower temperatures ρ(T) deviates from this behavior and slightly increases to the lowest T. In B>0 and T ≾ 6 K the resistivity shows an anomalous magnetic-history dependence together with an unusual relaxation behavior. In the isothermal resistivity Shubnikov-de Haas (SdH) oscillations, arising from a low-density system of mobile As-4p holes, with a frequency of 25 T have been recorded. From the T- and B-dependence of the SdH oscillations an effective carrier mass of (0.275±0.005)m 0 and a charge-carrier mean-free path of 215 Å are determined. Furthermore, in B≥15 T, the system is near the quantum limit and spin-splitting effects are observed.
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References
A Ochiai, T Suzuki and T Kasuya, J. Phys. Soc. Jpn. 59, 4129 (1990)
M Kohgi, K Iwasa, J-M Mignot, A Ochiai and T Suzuki, Phys. Rev. B56, R11388 (1997)
R Helfrich, M Köppen, M Lang, F Steglich and A Ochiai, J. Magn. Magn. Mater. 177–181, 309 (1998)
M Köppen, M Lang, R Helfrich, F Steglich, P Thalmeier, B Schmidt, B Wand, D Pankert, H Benner, H Aoki and A Ochiai, Phys. Rev. Lett. 82, 4548 (1999)
M Kohgi, K Iwasa, J-M. Mignot, B Fåk, P Gegenwart, M Lang, A Ochiai, H Aoki and T Suzuki, Phys. Rev. Lett. 86, 2439 (2001)
P Gegenwart, H Aoki, T Cichorek, J Custers, N Harrison, M Jaime, M Lang, A Ochiai and F Steglich, Physica B312–313, 315 (2002)
M Oshikawa, K Ueda, H Aoki, A Ochiai and M. Kohgi, J. Phys. Soc. Jpn. 68, 3181 (1999)
P Gegenwart, T Cichorek, J Custers, M Lang, H Aoki, A Ochiai and F Steglich, J. Magn. Magn. Mater. 226–230, 630 (2001)
B Schmidt, H Aoki, T Cichorek, J Custers, P Gegenwart, M Kohgi, M Lang, C Langhammer, A Ochiai, S Paschen, F Steglich, T Suzuki, P Thalmeier, B Wand and A Yaresko, Physica B300, 121 (2001)
B Schmidt, H Aoki, T Cichorek, P Gegenwart, A Ochiai and F Steglich, J. Phys. Soc. Jpn. (in press)
H Harima, J. Phys. Soc. Jpn. 67, 37 (1998)
V N Antonov, A N Yaresko, A Ya Perlov, P Thalmeier, P Fulde, P M Oppeneer and H Eschrig, Phys. Rev., B58, 975 (1998)
A N Yaresko, unpublished results
H Aoki, A Ochiai, H Aoki, N Kimura, T Terashima, C Terakura and H Harima, J. Phys. Soc. Jpn. (submitted)
T Suzuki and H Aoki (private communication)
H Aoki, A Ochiai, M Oshikawa and K Ueda, Physica B281&282, 465 (2000)
H Matsui, A Ochiai, H Harima, H Aoki, T Suzuki, T Yasuda and N Toyota, J. Phys. Soc. Jpn. 66, 3729 (1997)
W Kohn, Phys. Rev. 123, 1242 (1961)
K Koyama, M Yoshida, T Sakon, D Li, T Suzuki and M Motokawa, J. Phys. Soc. Jpn. 69, 3425 (2000)
M Yoshida, K Koyama, T Sakon, A Ochiai and M Motokawa, J. Phys. Soc. Jpn. 69, 3629 (2000)
K Kanki and K Yamada, J. Phys. Soc. Jpn. 66, 1103 (1997)
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Gegenwart, P., Aoki, H., Cichorek, T. et al. Magnetotransport of the low-carrier density one-dimensional S=1/2 antiferromagnet Yb4As3 . Pramana - J Phys 58, 715–723 (2002). https://doi.org/10.1007/s12043-002-0161-x
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DOI: https://doi.org/10.1007/s12043-002-0161-x
Keywords
- S=1/2 antiferromagnet Yb4As3
- magnetotransport
- isothermal resistivity
- heavy fermion
- Shubnikov-de Haas oscillations