• Balakirev, F. F.
• Sugawara, H.
• Tou, H.
• Kotegawa, H.
• Matsuoka, E.
• Yanase, Y.
• Goh, Swee K.
• Hu, Y. J.
• Lai, Kwing To
• Aulestia, E. I. Paredes
• Sun, D.
• Niu, Q.

Abstract

The band structure of high carrier density metal CrP features an interesting crossing at the <i>Y</i> point of the Brillouin zone. The crossing, which is protected by the nonsymmorphic symmetry of the space group, results in a hybrid, semi-Dirac-like energy-momentum dispersion relation near <i>Y</i>. The linear energy-momentum dispersion relation along <i>Y</i>-Γ is reminiscent of the observed band structure in several semimetallic extremely large magnetoresistance (XMR) materials. We have measured the transverse magnetoresistance of CrP up to 14 T at temperatures as low as ∼16 mK. Our data reveal a nonsaturating, quadratic magnetoresistance as well as the behavior of the so-called "turn-on" temperature in the temperature dependence of resistivity. Despite the difference in the magnitude of the magnetoresistance and the fact that CrP is not a semimetal, these features are qualitatively similar to the observations reported for XMR materials. Thus, the high-field electrical transport studies of CrP offer the prospect of identifying the possible origin of the nonsaturating, quadratic magnetoresistance observed in a wide range of metals.

Topics

• density
• impedance spectroscopy
• dispersion
• resistivity
• band structure
• space group