Hydroxyapatite light_emitting ThermalProperties Christmas Optoelectonics SmallScan Edwin H-BN PinpointPFM small_scan TemperatureControllerAFM NusEce BloodCell Bismuth TemperatureControlledAFM cross section Scratch PpLdpe LifeScience SolarCell ThermalConductivity ForceVolumeMapping SetpointMode heterojunctions MagneticForceMicroscopy nanomechanical SFAs Pyroelectric Iron Cobalt dichalcogenide MfmPhase oxide_layer SiliconOxide DNA