Extended Kohler's rule of magnetoresistance in TaCo 2 Te 2
Journal Article
·
· Physical Review. B
- Argonne National Laboratory (ANL), Argonne, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
- Sun Yat-Sen Univ., Guangzhou (China)
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Argonne National Laboratory (ANL), Argonne, IL (United States). Center for Nanoscale Materials (CNM)
- Argonne National Laboratory (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
TaCo2Te2 is recently reported to be an air-stable, high mobility van der Waals material with probable magnetic order. Here we investigate the scaling behavior of its magnetoresistance. Here we measured both the longitudinal (pxx) and Hall (pxy) magnetoresistivities of TaCo2Te2 crystals in magnetic fields parallel to the c axis and found that the magnetoresistance violates the Kohler's rule MR similar to f [H/p0] while obeying the extended Kohler's rule MR ~ f [H/(nT p0)], where MR ~ [pxx(H) - p0]/p0, H is the magnetic field, nT is a thermal factor, and pxx(H) and p0 are the resistivities at H and zero field, respectively. Further, while deviating from those of the densities of electrons (ne) and holes (nh) obtained from the two-band model analysis of the magnetoconductivities, the temperature dependence of nT is close to that of the Hall carrier densities nH calculated from the slopes of pxy(H) curves at low magnetic fields, providing a different way to obtain the thermal factor in the extended Kohler's rule.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Center for Nanoscale Materials (CNM)
- Sponsoring Organization:
- National Natural Science Foundation of China (NSFC); National Science Foundation (NSF); Natural Science Foundation of Guangdong Province; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 2563557
- Alternate ID(s):
- OSTI ID: 2474188
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 3 Vol. 109; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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