Walter Lambrecht
Links to Recent Publications
 Rare-earth nitrides

Calculated interband optical transition spectra of GdNChandrima Mitra and Walter R. L. Lambrecht, Phys. Rev. B 78, 195203 (2008)

Magnetic exchange interactions in the gadolinium pnictides from first principles Chandrima Mitra and Walter R. L. Lambrecht, Phys. Rev. B 78,134421 (2008)

Tetradymite magnetic semiconductors

Electronic structure and magnetism in Bi2Te3, Bi2Se3, and Sb2Te3 doped with transition metals (Ti-Zn), Paul Larson and Walter R. L. Lambrecht, Phys. Rev. B 78, 195207 (2008)

Point defects in chalcopyrites

First-principles study of native defects in CdGeAs2 Tula R. Paudel and Walter R. L. Lambrecht, Phys. Rev. B 78, 085214 (2008)


Theoretical study of the phosphorus vacancy in ZnGeP2 , Xiaoshu Jiang, M. S. Miao, and Walter R. Lambrecht, Phys. Rev. B 73, 193203 (2006)


Theoretical study of cation-related point defects in ZnGeP2 , Xiaoshu Jiang, M. S. Miao, and Walter R. Lambrecht, Phys. Rev. B 71, 205212 (2005)

ZnO

First-principles calculation of the O vacancy in ZnO: A self-consistent gap-corrected approach Tula R. Paudel and Walter R. L. Lambrecht, Phys. Rev. B 77, 205202 (2008)

Copper sulfide

Electronic and crystal structure of Cu2-xS: Full-potential electronic structure calculations Pavel Lukashev, Walter R. L. Lambrecht, Takao Kotani and Mark van Schilfgaarde, Phys. Rev. B 76,195202 (2007)

Zn-IV-N2 semiconductors

First-principles study of phonons and related ground-state properties and spectra in Zn-IV-N2 compoundsTula R. Paudel and Walter R. L. Lambrecht, Phys. Rev. B 78,115204 (2008)

Vibrational modes in ZnGeN2: Raman study and theoryTimothy J. Peshek, Tula R. Paudel, Kathleen Kash, and Walter R. L. Lambrecht, Phys. Rev. B 77, 235213 (2008)

First-principles calculation of the zone center phonons in ZnSiN2: Comparison with infrared dataTula R. Paudel and Walter R. L. Lambrecht Phys. Rev. B 76, 115205 (2007)

Mn-doped ScN

Linear response theoretical study of the exchange interactions in Mn-doped ScN: Effects of disorder, band gap, and doping Aditi Herwadkar, Walter R. L. Lambrecht, and Mark van Schilfgaarde Phys. Rev. B 77, 134433 (2008)

Mn-doped ScN, a dilute ferromagnetic semiconductor with local exchange coupling Aditi Herwadkar and Walter R. L. Lambrecht, Phys. Rev. B 72, 235207 (2005)

Transition metal nitrides
Optical conductivity and X-ray absorption and emission study of the band structure of MnN films, S. Granville, B. J. Ruck, F. Budde, A. Koo, J. E. Downes, H. J. Trodahl, A. Bittar, N. Strickland, G. Williams, W. R. L. Lambrecht, Kevin E. Smith, Timothy Learmonth,J. Kennedy, A. Markwitz, Phys. Rev. B 72, 205127 (2005)

Electronic structure and magnetic interactions in MnN and Mn3N2, W. R. L. Lambrecht, Margarita Prikhodko and M.S. Miao, Phys. Rev. B 68, 174411 (2003).

Transition metal doping of SiC
Magnetic Properties of Substitutional 3d Transition Metal Impurities in Silicon Carbide, M. S. Miao and W. R. L. Lambrecht, Phys. Rev. B 68 , 125204 (2003)

High-pressure phase transitions

Unified path for high-pressure transitions of SiC poltypes to rocksalt, M. S. Miao and W. R. L. Lambrecht, Phys. Rev. B 68, 092103 (2003)

Homogeneous strain deformation path for the wurtzite to rocksalt high-pressure phase transition in GaN, Sukit Limpijumnong and Walter R. L. Lambrecht, Phys. Rev. Lett. 86, 91-94 (2001)

Stacking faults

Electronic Structure of Thin Heterocrystalline Superlattices in SiC and AlN, M. S. Miao and W. R. L. Lambrecht, Phys. Rev. B 68, 155320 (2003)

Nonlinear optics
Noncritically phase-matched second-harmonic-generation chalcopyrites based on CdSiAs2 and CdSiP2, Walter R. L. Lambrecht and Xiaoshu Jiang , Phys. Rev. B 70, 045204 (2004)
Second Harmonic Generation of I-III-VI2 Chalcopyrite Semiconductors: Effects of Chemical Substitutions, S. N. Rashkeev and W. R. L. Lambrecht, Phys. Rev. B 63, 165212-165224 (2001).


Spin-dependent resonant tunneling through semimetallic ErAs quantum wells in a magnetic field, Andrey G. Petukhov, Walter R. L. Lambrecht, and Benjamin Segall, Phys. Rev. B 53, 3646 (1996).


Theory of the optical absorption bands in the 1--3 eV range in n-type Silicon Carbide polytypes, S. Limpijumnong, W. R. L. Lambrecht, S. N. Rashkeev, and B. Segall, Phys. Rev. B 59, 12890-12899 (1999)

Please send comments and suggestions to paul.larson@case.edu