Magnetic and critical behavior of thin terbium(0001)/tungsten(110) films studied by electron capture spectroscopy (ECS)

Simple item page
dc.contributor.advisorRau, Carl
dc.creatorJin, Changming
dc.date.accessioned2009-06-04T00:07:54Z
dc.date.available2009-06-04T00:07:54Z
dc.date.issued1988
dc.description.abstractEpitaxial films of hcp Tb(0001) on bcc W(110) substrates are prepared and their geometric, electronic and magnetic properties are studied. The atomic flatness and cleanness and the single-crystalline state of the W(110) substrates and the Tb films are checked using scanning tunneling microscopy (STM), Auger electron spectroscopy (AES) and low-energy and high-energy electron diffraction (LEED and RHEED). Using electron capture spectroscopy (ECS), the surface electron spin polarization of the Tb(0001) films is studied as a function of temperature. The topmost layer is found to order ferromagnetically below a surface Curie temperature T$\sb{\rm C\sb s}$ = 249.96 K, which lies above both the bulk Curie and Neel temperatures T$\sb{\rm C\sb b}$ = 220 K and T$\sb{\rm N\sb b}$ = 228 K, respectively, and exhibits strongly non-monotonic behavior close to 245 K. Novel critical behavior is observed near T$\sb{\rm C\sb s}$, suggesting strong surface anisotropies, in accord with a recently predicted and previously unobserved surface phase transition.
dc.format.extent104 p.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.callnoThesis Phys. 1988 Jin
dc.identifier.citationJin, Changming. "Magnetic and critical behavior of thin terbium(0001)/tungsten(110) films studied by electron capture spectroscopy (ECS)." (1988) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/13298">https://hdl.handle.net/1911/13298</a>.
dc.identifier.urihttps://hdl.handle.net/1911/13298
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectCondensed matter physics
dc.subjectPhysics
dc.subjectElectromagnetics
dc.subjectEngineering
dc.subjectMaterials science
dc.titleMagnetic and critical behavior of thin terbium(0001)/tungsten(110) films studied by electron capture spectroscopy (ECS)
dc.typeThesis
dc.type.materialText
thesis.degree.departmentPhysics
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1334858.PDF
Size:
2.35 MB
Format:
Adobe Portable Document Format
Download
Collections
Rice University Electronic Theses and Dissertations