Determination of three-dimensional strain state in crystals using self-interfered split HOLZ lines

作者：Herring Rodney^*; Norouzpour Mana; Saitoh Koh; Tanaka Nobuo; Tanji Takayoshi

来源：Ultramicroscopy, 2015, 156: 37-40.

DOI：10.1016/j.ultramic.2015.04.013

• Three-dimensional crystal strain
• CBED
• Split HOLZ line
• Electron holography

An experimental method to measure the strain through the thickness of a crystal is demonstrated. This enables the full three-dimensional stress-strain state of a crystal at the nanoscale to be determined taking the current practice from two-dimensional strain state determination. Knowing the 3D strain state is desired by crystal growers in order to improve their crystal's quality. This method involves combining electron diffraction with electron interferometry in a transmission electron microscope. The electron diffraction uses a split higher order Laue zone (HOLZ) line and the electron interferometiy uses an electron biprism.

• 出版日期2015-9