4 papers
On the Detection of Curl-Free Gauge Fields
Armen Gulian, Will Benston, Vahan Nikoghosyan
In quantum theory, electromagnetic gauge fields enter directly into the phase evolution of the wavefunction and can even influence quantum systems in regions where the associated e…
Revisiting apparent ideal diamagnetism at ambient conditions in graphene-n-heptane-permalloy systems
Rajendra Dulal, Serafim Teknowijoyo, Sara Chahid +2
We previously reported apparent ideal diamagnetism at ambient conditions in a graphene-n-heptane-permalloy system. At the same time, the experiments revealed inconsistent behavior,…
Glassy magnetic freezing of interacting clusters in LK-99-family materials
Serafim Teknowijoyo, Domenico Napoletani, Vahan Nikoghosyan +1
We report reproducible magnetization anomalies appearing below room temperature in copper-doped apatite materials belonging to the LK-99 family synthesized via hydrothermal methods…
Diode Effect May Assist Finding Proper Superconductivity Mechanism in Copper Oxides
Armen Gulian, Serafim Teknowijoyo, Vahan Nikoghosyan
We present measurements demonstrating that copper-oxide high-temperature superconductors can exhibit broken time-reversal symmetry in the absence of external magnetic fields. Using…