Details
| Original language | English |
|---|---|
| Article number | 47001 |
| Journal | Europhysics Letters (EPL) |
| Volume | 128 |
| Issue number | 4 |
| Publication status | Published - Nov 2019 |
Abstract
We report the observation of an extremely large non-saturating magnetoresistance (MR) exceeding one million per cent at a magnetic field of 11 tesla in gapless HgCdTe. The samples exhibit a maximum of MR at a temperature of T = 75K corresponding to the semiconductorsemimetal transition, where a linear carrier dispersion appears. We attribute the observed giant MR to an opening of the gap due to Landau quantization of the Kane fermions strengthened by the absence of localization in such a purely gapless system at zero magnetic field.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Europhysics Letters (EPL), Vol. 128, No. 4, 47001, 11.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Giant magnetoresistance in gapless HgCdTe with Kane fermions
AU - Vasileva, G. Yu
AU - Vasilyev, Yu B.
AU - Greshnov, A. A.
AU - Mikhailov, N. N.
AU - Usikova, A. A.
AU - Belke, Christopher
AU - Haug, Rolf J.
N1 - Yu BV thanks S. Tarasenko, A. Dmitriev, I. Gornyi and V. Kachorovskii for fruitful discussions. GYu V acknowledges the support from the RSF (No. 17-72-10134).
PY - 2019/11
Y1 - 2019/11
N2 - We report the observation of an extremely large non-saturating magnetoresistance (MR) exceeding one million per cent at a magnetic field of 11 tesla in gapless HgCdTe. The samples exhibit a maximum of MR at a temperature of T = 75K corresponding to the semiconductorsemimetal transition, where a linear carrier dispersion appears. We attribute the observed giant MR to an opening of the gap due to Landau quantization of the Kane fermions strengthened by the absence of localization in such a purely gapless system at zero magnetic field.
AB - We report the observation of an extremely large non-saturating magnetoresistance (MR) exceeding one million per cent at a magnetic field of 11 tesla in gapless HgCdTe. The samples exhibit a maximum of MR at a temperature of T = 75K corresponding to the semiconductorsemimetal transition, where a linear carrier dispersion appears. We attribute the observed giant MR to an opening of the gap due to Landau quantization of the Kane fermions strengthened by the absence of localization in such a purely gapless system at zero magnetic field.
UR - http://www.scopus.com/inward/record.url?scp=85081360764&partnerID=8YFLogxK
U2 - 10.1209/0295-5075/128/47001
DO - 10.1209/0295-5075/128/47001
M3 - Article
AN - SCOPUS:85081360764
VL - 128
JO - Europhysics Letters (EPL)
JF - Europhysics Letters (EPL)
SN - 0295-5075
IS - 4
M1 - 47001
ER -