Longitudinal interlayer magnetoresistance in strongly anisotropic quasi-two-dimensional metals
Longitudinal interlayer magnetoresistance in strongly anisotropic quasi-two-dimensional metals
复制标题
强各向异性准二维金属的纵向层间磁阻
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
P. Grigoriev
中科院分区：
文献类型：
--
作者：
P. Grigoriev
The longitudinal interlayer magnetoresistance $R_{zz}(B_{z})$ is calculated in strongly anisotropic layered metals, when the interlayer band width $4t_{z}$ is less than the Landau level separation $hbar omega_{c}$. The impurity scattering has much stronger effect in this regime than in 3D metals and leads to a linear longitudinal interlayer magnetoresistance $R_{zz}propto B_{z}$ in the interval $hbar omega_{c}>4t_{z}>>sqrt{Gamma_{0}hbar omega_{c}}$ changing to a square-root dependence $R_{zz}propto B_{z}^{1/2}$ at higher field or smaller $t_{z}$. The crossover field allows to estimate the interlayer transfer integral as $t_{z}sim sqrt{Gamma_{0}hbar omega_{c}}$. Longitudinal interlayer magnetoresistance, being robust to the increase of temperature or long-range disorder, is easy for measurements and provides a useful tool to investigate the electronic structure of quasi-two-dimensional compounds.
The longitudinal interlayer magnetoresistance $R_{zz}(B_{z})$ is calculated in strongly anisotropic layered metals, when the interlayer band width $4t_{z}$ is less than the Landau level separation $hbar omega_{c}$. The impurity scattering has much stronger effect in this regime than in 3D metals and leads to a linear longitudinal interlayer magnetoresistance $R_{zz}propto B_{z}$ in the interval $hbar omega_{c}>4t_{z}>>sqrt{Gamma_{0}hbar omega_{c}}$ changing to a square-root dependence $R_{zz}propto B_{z}^{1/2}$ at higher field or smaller $t_{z}$. The crossover field allows to estimate the interlayer transfer integral as $t_{z}sim sqrt{Gamma_{0}hbar omega_{c}}$. Longitudinal interlayer magnetoresistance, being robust to the increase of temperature or long-range disorder, is easy for measurements and provides a useful tool to investigate the electronic structure of quasi-two-dimensional compounds.