Quantum criticality of reconstructing Fermi surfaces in antiferromagnetic metals

Junhyun Lee; Philipp Strack; Subir Sachdev

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Quantum criticality of reconstructing Fermi surfaces in antiferromagnetic metals

机译：反铁磁性金属中费米表面重构的量子临界性

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We present a functional renormalization group analysis of a quantum critical point in two-dimensional metals involving Fermi surface reconstruction due to the onset of spin-density wave order. Its critical theory is controlled by a fixed point in which the order parameter and fermionic quasiparticles are strongly coupled and acquire spectral functions with a common dynamic critical exponent. We obtain results for critical exponents and for the variation in the quasiparticle spectral weight around the Fermi surface. Our analysis is implemented on a two-band variant of the spin-fermion model which will allow comparison with sign-problem-free quantum Monte Carlo simulations.%045104-1

机译：由于自旋密度波阶的出现，我们介绍了涉及费米表面重构的二维金属中的量子临界点的功能重整化组分析。它的临界理论由一个定点控制，在该定点中，阶数参数和铁离子准粒子被强耦合，并获得具有共同动态临界指数的光谱函数。我们获得了关键指数以及费米表面附近准粒子光谱权重变化的结果。我们的分析是在自旋费米子模型的两个频带变体上进行的，该变体将可以与无符号问题的量子蒙特卡洛模拟进行比较。％045104-1

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来源
《Physical review》 |2013年第4期|132-139|共8页
作者
Junhyun Lee; Philipp Strack; Subir Sachdev;
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作者单位

Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

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正文语种 eng
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关键词
spin-density waves; dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.);

机译：自旋密度波动态特性（动态磁化率;自旋波;自旋扩散;动态缩放等）;

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专利

1. APS -APS March Meeting 2017 - Event - Exact Critical Exponents for the Antiferromagnetic Quantum Critical Metal Supporting a One-Dimensional Fermi Surface in General Space Dimension [J] . Andres Schlief, Peter Lunts, Sung-Sik Lee Bulletin of the American Physical Society . 2017,第4期

机译：APS -APS 2017年3月会议-活动-在一般空间维度上支持一维费米表面的反铁磁量子临界金属的精确临界指数
2. Magnetic correlations and quantum criticality in the insulating antiferromagnetic, insulating spin liquid, renormalized Fermi liquid, and metallic antiferromagnetic phases of the Mott system V2O3 [Review] [J] . Bao W., Aeppli G., Carter SA., Physical Review, B. Condensed Matter . 1998,第19期

机译：绝缘反铁磁，绝缘旋转液，重整化的费米液和莫特系统的金属反铁磁阶段磁性相关性和量子临界性V2O3 [评论]
3. Diffraction line-shapes, Fermi surface nesting, and quantum criticality in antiferromagnetic chromium at high pressure (invited) [J] . R. Jaramillo, Yejun Feng, T. F. Rosenbaum Journal of Applied Physics . 2010,第9pta2期

机译：高压下反铁磁铬的衍射线形，费米表面嵌套和量子临界性（受邀）
4. Diffraction line-shapes, Fermi surface nesting, and quantum criticality in antiferromagnetic chromium at high pressure (invited) [C] . R. Jaramillo, Yejun Feng, T. F. Rosenbaum Joint MMM-Intermag Conference . 2010

机译：衍射线形状，费米表面嵌套，高压（邀请）反铁磁铬中的量子临界性
5. Photoemission studies of high critical transition temperature superconductors: Doping dependences, Fermi surfaces, superconducting gaps, and metal-superconductor interfaces. [D] . Dessau, Daniel Stephen. 1993

机译：高临界转变温度超导体的光发射研究：掺杂依赖性，费米表面，超导间隙和金属-超导体界面。
6. Critical quasiparticle theory applied to heavy fermion metals near an antiferromagnetic quantum phase transition [O] . Elihu Abrahams, Peter Wölfle 2012

机译：临界准粒子论适用于反铁磁量子相变附近的重费米金属
7. Quantum criticality of reconstructing Fermi surfaces in antiferromagnetic metals [O] . Lee, Junhyun, Strack, Philipp, Sachdev, Subir 2013

机译：重建费米面的量子临界性反铁磁金属

Quantum criticality of reconstructing Fermi surfaces in antiferromagnetic metals

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