Significant thermal Hall effect in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>3</mml:mn><mml:mi>d</mml:mi></mml:mrow></mml:math> cobalt Kitaev system <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Na</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Co</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi>Te</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>
نویسندگان
چکیده
Kitaev physics has recently attracted attention in condensed matter for its anticipated novel quantum spin liquid state. The thermal transport measurement is crucial probing the features of charge-neutral quasiparticles. In this letter, we report a significant Hall effect $Na_2Co_2TeO_6$ (NCTO), candidate, when magnetic field applied along out-of-plane direction honeycomb plane. conductivity ($\kappa_{xx}$) and ($\kappa_{xy}$) NCTO reveal distinct dependences below above Neel temperature ($T_N$) 27 K. For $T>T_N$, $\kappa_{xx}$ monotonic decrease dependence, while $\kappa_{xy}$ persists up to $T^*$ = 150 On other hand, both exhibit complex dependence $T<T_N$.
منابع مشابه
Thermal Transport in the Kitaev Model.
In conventional insulating magnets, heat is carried by magnons and phonons. In contrast, when the magnets harbor a quantum spin liquid state, emergent quasiparticles from the fractionalization of quantum spins can carry heat. Here, we investigate unconventional thermal transport yielded by such exotic carriers, in both longitudinal and transverse components, for the Kitaev model, whose ground s...
متن کاملQuantized thermal transport in the fractional quantum Hall effect
We analyze thermal transport in the fractional quantum Hall effect ~FQHE!, employing a Luttinger liquid model of edge states. Impurity mediated interchannel scattering events are incorporated in a hydrodynamic description of heat and charge transport. The thermal Hall conductance KH is shown to provide universal characterization of the FQHE state, and reveals nontrivial information about the ed...
متن کاملTheory of the thermal Hall effect in quantum magnets.
We present a theory of the thermal Hall effect in insulating quantum magnets, where the heat current is totally carried by charge-neutral objects such as magnons and spinons. Two distinct types of thermal Hall responses are identified. For ordered magnets, the intrinsic thermal Hall effect for magnons arises when certain conditions are satisfied for the lattice geometry and the underlying magne...
متن کاملthe effect of the record infancy in crimilly acts of guilties (in karaj city)
چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...
15 صفحه اولThermal Hall Effect of Spin Excitations in a Kagome Magnet.
At low temperatures, the thermal conductivity of spin excitations in a magnetic insulator can exceed that of phonons. However, because they are charge neutral, the spin waves are not expected to display a thermal Hall effect. However, in the kagome lattice, theory predicts that the Berry curvature leads to a thermal Hall conductivity κ(xy). Here we report observation of a large κ(xy) in the kag...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.106.l081116