42 citations · 250 across the 22 of their papers we have counts for
22 papers
Phase purity and surface morphology of high-Jc superconducting Bi2Sr2Ca1Cu2O8+δ thin films
Sandra Keppert, Bernd Aichner, Rajdeep Adhikari +3
Bi2Sr2Ca1Cu2O8+d (Bi-2212) thin films with thicknesses less than 50 nm (<20 unit cells) are grown by pulsed laser deposition (PLD) onto (001) LaAlO3 (LAO) single crystal substrates…
Effect of impurity scattering on percolation of bosonic islands and reentrant superconductivity in Fe implanted NbN thin films
Rajdeep Adhikari, Bogdan Faina, Verena Ney +4
A reentrant temperature dependence of the thermoresistivity between an onset local superconducting ordering temperature and a g…
Ultrafast coherent THz lattice dynamics coupled to spins in a van der Waals antiferromagnetic flake
Fabian Mertens, David Mönkebüscher, Eugenio Coronado +8
A coherent THz optical lattice mode is triggered by femtosecond laser pulses in the antiferromagnetic van der Waals semiconductor FePS. The 380 nm thick exfoliated flake was pl…
Positive magnetoresistance and chiral anomaly in exfoliated type-II Weyl semimetal -WTe
R. Adhikari, S. Adhikari, B. Faina +5
Layered van der Waals semimetallic -WTe, exhibiting intriguing properties which include non-saturating extreme positive magnetoresistance (MR) and tunable chira…
Quantum criticality in CeSmCoIn
D. L. Kunwar, R. B. Adhikari, N. Pouse +3
Motivated by the possibility of observing the co-existence between magnetism and unconventional superconductivity in heavy-fermion CeSmCoIn alloys, we studied how t…
Cross-plane thermal conductivity of GaN/AlN superlattices
Anna Spindlberger, Dmytro Kysylychyn, Lukas Thumfart +3
Heterostructures consisting of alternating GaN/AlN epitaxial layers represent the building-blocks of state-of-the-art devices employed for active cooling and energy-saving lightnin…
Low temperature and high magnetic field performance of a commercial piezo-actuator probed laser interferometry
R. Adhikari, K. Doesinger, P. Linder +2
The advances in the fields of scanning probe microscopy, scanning tunneling spectroscopy, point contact spectroscopy and point contact Andreev reflection spectroscopy to study the…
Evolution of non-Kramers Doublets in Magnetic Field PrNiCd and PrPdCd
A. M. Konic, R. B. Adhikari, D. L. Kunwar +6
Praseodymium-based 1-2-20 cage compounds Pr ( is generally Ti, V, Nb, Ru, Rh, Ir; and is either Al, Zn or Cd) provide yet another platform to study non-trivial el…
Ferromagnetic phase transition in topological crystalline insulator thin films: interplay of anomalous Hall angle and magnetic anisotropy
R. Adhikari, V. V. Volobuev, B. Faina +2
In magnetic topological phases of matter, the quantum anomalous Hall (QAH) effect is an emergent phenomenon driven by ferromagnetic doping, magnetic proximity effects and strain en…
Schottky anomaly and short-range antiferromagnetic correlations in filled skutterudites PrEuPtGe
R. B. Adhikari, P. Shen, D. L. Kunwar +4
By performing a series of thermodynamic measurements in an applied magnetic field , we investigated the effects of Eu substitution on the Pr sites in filled skutt…
Magnetotransport in phase-separated (Ga,Fe)N with '-GaFeN nanocrystals
A. Navarro-Quezada, M. Aiglinger, B. Faina +6
The magnetotransport in phase-separated (Ga,Fe)N containing '-GaFeN (0\,\,y\,1) nanocrystals (NCs) is studied in the temperature range between 2\,K and 300\,K.…
Short-range antiferromagnetic correlations in the superconducting state of filled skutterudite alloys PrEuPtGe
R. B. Adhikari, D. L. Kunwar, I. Jeon +3
Motivated by current research efforts towards exploring the interplay between magnetism and superconductivity in multiband electronic systems, we have investigated the effects of E…
Zero-Field Quantum Critical Point in CeYbCoIn
Y. P. Singh, R. B. Adhikari, D. J. Haney +4
We present results of specific heat, electrical resistance, and magnetoresistivity measurements on single crystals of the heavy-fermion superconducting alloy CeYb…
All-nitride and In-free AlGaN:Mn/GaN distributed Bragg reflectors for the near-infrared
G. Capuzzo, D. Kysylychyn, R. Adhikari +4
Since the technological breakthrough prompted by the inception of light emitting diodes based on III-nitrides, these material systems have emerged as strategic semiconductors not o…
Multiband superconductivity in the correlated electron filled skutterudite system Pr(1-x)Ce(x)Pt4Ge12
Y. P. Singh, R. B. Adhikari, S. Zhang +6
Studies of superconductivity in multiband correlated electronic systems has become one of the central topics in condensed matter/materials physics. In this paper, we present the re…
Stretching magnetism with an electric field in a nitride semiconductor
D. Sztenkiel, M. Foltyn, G. P. Mazur +11
By direct magnetization measurements, performed employing a new detection scheme, we demonstrate an electrical control of magnetization in wurtzite (Ga,Mn)N. In this dilute magneti…
Rashba semiconductor as spin Hall material: Experimental demonstration of spin pumping in wurtzite -GaN:Si
R. Adhikari, M. Matzer, A. Tarazaga Martín-Luengo +1
Pure spin currents in semiconductors are essential for implementation in the next generation of spintronic elements. Heterostructures of III- nitride semiconductors are currently e…
Controlling a three dimensional electron slab of graded AlGaN
R. Adhikari, Tian Li, G. Capuzzo +1
Polarization induced degenerate -type doping with electron concentrations up to 10\,cm is achieved in graded AlGaN layers (: 0\%$\rightarrow…
Upper bound for the s-d exchange integral in n-(Ga,Mn)N:Si from magnetotransport studies
R. Adhikari, W. Stefanowicz, B. Faina +3
A series of recent magnetooptical studies pointed to contradicting values of the s-d exchange energy N0α in Mn-doped GaAs and GaN as well as in Fe-doped GaN. Here, a strong sensiti…
Incorporation of Mn in AlGaN probed by x-ray absorption and emission spectroscopy, high-resolution microscopy, x-ray diffraction and first-principles calculations
Mauro Rovezzi, Wolfgang Schlögelhofer, Thibaut Devillers +5
Synchrotron radiation x-ray absorption and emission spectroscopy techniques, complemented by high-resolution transmission electron microscopy methods and density functional theory…
Mn as surfactant for the self-assembling of AlGaN/GaN layered heterostructures
Thibaut Devillers, Li Tian, Rajdeep Adhikari +2
The structural analysis of GaN and AlGaN/GaN heterostructures grown by metalorganic vapor phase epitaxy in the presence of Mn reveals how Mn affects the growth process,…
Experimental determination of Rashba spin-orbit coupling in wurtzite -GaN:Si
W. Stefanowicz, R. Adhikari, T. Andrearczyk +5
Millikelvin magnetotransport studies are carried out on heavily -doped wurtzite GaN:Si films grown on semi-insulating GaN:Mn buffer layers by metal-organic vapor phase epitaxy.…