59 citations · 248 across the 25 of their papers we have counts for
25 papers
Unified Spectral, Dynamical, and Correlation Signatures of an Exceptional Point in Cavity Optomechanics
Khazali Fahmi, Ahmad R. T. Nugraha, Ferry A. A. Nugraha +1
We investigate how the exceptional-point structure of a dissipative cavity optomechanical system is inherited by experimentally accessible dynamical, spectral, and quantum-statisti…
Spin current generation driven by skyrmion dynamics under magnetic anisotropy and polarized microwaves
Seno Aji, Muhammad Anin Nabail Azhiim, Nur Ika Puji Ayu +3
We have investigated the spin-current pumped by the skyrmion-host material with the lack of inversion symmetry through the microwave resonance process. The effects of magnetic anis…
Indirect Magnetoelectric Coupling via Skew Scattering by Orbital Angular Momentum
Adam B. Cahaya
Recent experimental observations of exchange bias in the LaSrMnO/LaAlO/SrTiO heterostructure, which lacks an intrinsic antiferromagnetic layer,…
Spin current compensation from competing magnon modes in ferrimagnets
Adam B. Cahaya
We investigate thermal spin pumping in gadolinium iron garnet (GdIG), focusing on the mode-resolved dynamics of antiferromagnetic magnons and their impact on spin and heat transpor…
Zitterbewegung, momentum and spin dynamics of electromagnetic waves in linear dielectric medium
Adam B. Cahaya
The momentum of light in dielectric media has been a century-long controversy that continues to attract significant interest. In a linear dielectric medium with refractive index n,…
Optimal half-metal band structure for large thermoelectric performance
Finantius E. M. Rahangiar, Adam B. Cahaya, Melania S. Muntini +2
Half-metal ferromagnets were predicted [in IEEE Trans. Mag. 51, 1 (2015)] to give large thermoelectric performance in anti-parallel spin valve configuration. Despite being metals t…
Diamagnetic Susceptibility of Interacting Electrons System
Adam B. Cahaya
Paramagnetism or diamagnetism of a material are shown by parallel or antiparallel directions, respectively, of the induced magnetization under the influence of external magnetic fi…
Stabilization and helicity control of hybrid magnetic skyrmion
Muzakkiy P. M. Akhir, Edi Suprayoga, Adam B. Cahaya
The hybrid skyrmion, a type of magnetic skyrmion with intermediate helicity between Bloch and Néel skyrmion, has gained more attraction. It is tolerant toward the skyrmion Hall eff…
High-performance Kerr quantum battery
Muhammad Shoufie Ukhtary, Ahmad R. T. Nugraha, Adam B. Cahaya +2
We propose and investigate the performance of a hybrid quantum battery, the so-called Kerr quantum battery, which consists of two interacting quantum oscillators, i.e., the charger…
Electrically controllable exchange bias via interface magnetoelectric effect
Adam B. Cahaya, Ansell Alvarez Anderson, Anugrah Azhar +1
Exchange bias is a unidirectional magnetic anisotropy that often arise from interfacial interaction of a ferromagnetic and antiferromagnetic layers. In this article, we show that a…
Spin-orbit torque on nuclear spins exerted by a spin accumulation via hyperfine interactions
Adam B. Cahaya, Alejandro O. Leon, Mohammad H. Fauzi
Spin-transfer and spin-orbit torques allow controlling magnetic degrees of freedom in various materials and devices. However, while the transfer of angular momenta between electron…
Dzyaloshinskii-Moriya spin density by skew scattering
Adam B. Cahaya, Alejandro O. Leon
Anisotropic exchange couplings, such as the Dzyaloshinskii-Moriya interaction (DMI), have played a vital role in the formation and dynamics of spin textures. This work predicts an…
Enhancement of spin mixing conductance by - orbital hybridization in heavy metals
Adam B. Cahaya, Rico M. Sitorus, Anugrah Azhar +2
In a magnetic multilayer, the spin transfer between localized magnetization dynamics and itinerant conduction spin arises from the interaction between a normal metal and an adjacen…
Effect of interfacial spin mixing conductance on gyromagnetic ratio of Gd substituted YFeO
Adam B. Cahaya, Anugrah Azhar, Dede Djuhana +1
Due to its low intrinsic damping, YFeO and its substituted variations are often used for ferromagnetic layer at spin pumping experiment. Spin pumping is an interfaci…
Enhancement of thermal spin pumping by orbital angular momentum of rare earth iron garnet
Adam B. Cahaya
In a bilayer of ferromagnetic and non-magnetic metal, spin pumping can be generated by a thermal gradient. The spin current generation depends on the spin mixing conductance of the…
Adiabatic limit of RKKY range function in one dimension
Adam B. Cahaya
The RKKY interaction is an important theoretical model for indirect exchange interaction in magnetic multilayer. The expression for RKKY range function in three dimension and lower…
Antiferromagnetic spin pumping via hyperfine interaction
Adam B. Cahaya
Spin pumping is an interfacial spin current generation from the ferromagnetic layer to the non-magnetic metal at its interface. The polarization of the pumped spin current $\textbf…
Spin-tunable thermoelectric performance in monolayer chromium pnictides
Melania S. Muntini, Edi Suprayoga, Sasfan A. Wella +6
Historically, finding two-dimensional (2D) magnets is well known to be a difficult task due to instability against thermal spin fluctuations. Metals are also normally considered po…
Yukawa potential for realistic prediction of Hubbard and Hund interaction parameters for transition metals
Adam B. Cahaya, Anugrah Azhar, Muhammad Aziz Majidi
The generalized Hubbard model is an important theoretical model for modeling strongly correlated materials. To be able to theoretically predict the properties of the materials, the…
Effects of screened Coulomb interaction on spin transfer torque
Adam B. Cahaya, Muhammad Aziz Majidi
In a magnetic multilayer, magnetizations can be manipulated by spin transfer torque. Both spin transfer torque and its reciprocal effect, spin pumping, are governed by spin mixing…
Equilibrium current vortices in rare-earth-doped simple metals
Adam B. Cahaya, Alejandro O. Leon, Mojtaba Rahimi Aliabad +1
Dilute alloys of rare earths have played a vital role in understanding magnetic phenomena. Here, we model the ground state of dilute 4f rare-earth impurities in light metals. When…
Crystal field effects on spin pumping
Adam B. Cahaya, Alejandro O. Leon, Gerrit E. W. Bauer
"Spin pumping" is the injection of spin angular momentum by a time-dependent magnetization into an adjacent normal metal proportional to the spin mixing conductance. We study the r…
Voltage control of interface rare-earth magnetic moments
Alejandro O. Leon, Adam B. Cahaya, Gerrit E. W. Bauer
The large spin orbit interaction in rare earth atoms implies a strong coupling between their charge and spin degrees of freedom. We formulate the coupling between voltage and the l…
Spin Seebeck Power Conversion
Adam B. Cahaya, Oleg A. Tretiakov, G. E. W. Bauer
Spin caloritronics is the science and technology to control spin, charge, and heat currents in magnetic nanostructures. The spin degree of freedom provides new strategies for therm…