180 citations · 638 across the 30 of their papers we have counts for
16 papers · 1 filter
Tailoring magnetic and hyperthermia properties of biphase iron oxide nanocubes through post-annealing
Supun B. Attanayake, Amit Chanda, Raja Das +2
Tailoring the magnetic properties of iron oxide nanosystems is essential to expand their biomedical applications. In this study, the 34 nm iron oxide nanocubes with two phases cons…
Temperature Evolution of Magnon Propagation Length in TmFeO Thin Films: Roles of Magnetic Anisotropy and Gilbert Damping
Amit Chanda, Christian Holzmann, Noah Schulz +7
The magnon propagation length () of a ferro/ferrimagnet (FM) is one of the key factors that controls the generation and propagation of thermally-driven spin curren…
Spin Seebeck effect in iron oxide thin films: Effects of phase transition, phase coexistence, and surface magnetism
Amit Chanda, Derick DeTellem, Yen Thi Hai Pham +10
Understanding impacts of phase transition, phase coexistence, and surface magnetism on the longitudinal spin Seebeck effect (LSSE) in a magnetic system is essential to manipulate t…
MnP films with desired magnetic, magnetocaloric and thermoelectric properties for a perspective magneto-thermo-electric cooling device
C. M. Hung, R. P. Madhogaria, B. Muchharla +8
A perspective magneto-thermo-electric cooling device (MTECD) comprising a central magnetocaloric (MC) material (e.g., Gd) sandwiched by two thermoelectric (TE) materials (e.g., MnP…
Scaling of the thermally induced sign inversion of longitudinal spin Seebeck effect in a compensated ferrimagnet: Role of magnetic anisotropy
Amit Chanda, Noah Schulz, Christian Holzmann +4
We report on a systematic investigation of the longitudinal spin Seebeck effect (LSSE) in a GGG(Gd3Ga5O12)/GdIG(Gd3Fe5O12)/Pt film series exhibiting an in-plane magnetic easy axis…
Strain-modulated helimagnetism and emergent magnetic phase diagrams in highly crystalline MnP nanorod films
Richa Pokharel Madhogaria, Chang-Ming Hung, Baleeswaraiah Muchharla +7
We explore strain-modulated helimagnetism in highly crystalline MnP nanorod films grown on Si(100) substrates using molecular beam epitaxy. The strained MnP film exhibits a paramag…
Table-like magnetocaloric effect and enhanced refrigerant capacity in EuO1-δ thin films
P. Lampen, R. Madhogaria, N. S. Bingham +6
An approach to adjusting the conduction band population for tuning the magnetic and magnetocaloric response of EuO1-δ thin films through control of oxygen vacancies (δ = 0, 0.025,…
Evidence of long-range ferromagnetic order and spin frustration effects in the double perovskite
R. P. Madhogaria, R. Das, E. M. Clements +6
We present a comprehensive study on the magnetic structure, dynamics, and phase evolution in the single-phase double perovskite . The mixed valence state due to oxygen…
Exchange Bias Effects in Iron Oxide-Based Nanoparticle Systems
Manh-Huong Phan, Javier Alonso, Hafsa Khurshid +7
The exploration of exchange bias (EB) on the nanoscale provides a novel approach to improving the anisotropic properties of magnetic nanoparticles for prospective applications in n…
Spin-glass-like freezing of inner and outer surface layers in hollow γFeO nanoparticles
Hafsa Khurshid, Paula Lampen-Kelley, Òscar Iglesias +5
Disorder among surface spins largely dominates the magnetic response of ultrafine magnetic particle systems. In this work, we examine time-dependent magnetization in high-quality,…
Exchange Bias Effect in Au-Fe3O4 Nanocomposites
Sayan Chandra, N. A. Frey Huls, M. H. Phan +7
We report exchange bias (EB) effect in the Au-Fe3O4 composite nanoparticle system, where one or more Fe3O4 nanoparticles are attached to an Au seed particle forming dimer and clust…
Magnetization and magnetoresistance in insulating phases of SrFeO3-d
S. Srinath, M. Mahesh Kumar, M. L. Post +1
We report the synthesis and properties of two new insulating phases of SrFeO3-d with introduction of oxygen deficiencies in metallic SrFeO3 ; one with 0.15 < d < 0.19 (sample A)and…
Dynamic Radio-Frequency Transverse Susceptibility in Magnetic Nanoparticle Systems
L. Spinu, H. Srikanth, E. E. Carpenter +1
A novel resonant method based on a tunnel-diode oscillator (TDO) is used to study the dynamic transverse susceptibility in a Fe nanoparticle system. The magnetic system consists of…
Magneto-impedance of glass-coated Fe-Ni-Cu microwires
J. Wiggins, H. Srikanth, K. -Y. Wang +2
The magneto-impedance (MI) of glass-coated Fe-Ni-Cu microwires was investigated for longitudinal radio-frequency (RF) currents up to a frequency of 200 MHz using an RF lock-in ampl…
Dynamic transverse susceptibility in Au-Fe-Au "nano-onions"
H. Srikanth, E. E. Carpenter, C. J. O'Connor
A precision radio-frequency (RF) transverse modulation technique based on a resonant tunnel diode oscillator (TDO) has been used to study the dynamic susceptibility in novel ring-s…
Radio-frequency impedance measurements using a tunnel-diode oscillator (TDO) technique
H. Srikanth, J. Wiggins, H. Rees
A resonant method based on a tunnel-diode oscillator (TDO) for precision measurements of relative impedance changes in materials, is described. The system consists of an effective…