C. Kofahl, L. Dörrer, H. Wulfmeier, H. Fritze, St. Ganschow, H. Schmidt;
Hydrogen Diffusion in Li(Nb,Ta)O3 Single Crystals Probed by Infrared Spectroscopy and Secondary Ion Mass Spectrometry;
Chem. Mater. 36,3 (2024) 1639


S. Hurskyy, U. Yakhnevych, C. Kofahl, E. Tichy-Racs, H. Schmidt, S. Ganschow, H. Fritze, Y. Suhak;
Electrical properties and temperature stability of Li-deficient and near stoichiometric Li(Nb,Ta)O3 solid solutions up to 900 °C;
Solid State Ionics 399 (2023) 116285;

D. Kohlmann, H. Wulfmeier, M. Schewe, T. Defferriere, C. Rembe, H.L. Tuller, H. Fritze,
High-temperature chemical expansion of Pr0.1Ce0.9O2-δ thin films determined by Differential Laser Doppler Vibrometry
Solid State Ionics,

U. Yakhnevych, C. Kofahl, S. Hurskyy, S. Ganschow, Y. Suhak, H. Schmidt, H.Fritze,
Charge transport and acoustic loss in lithium niobate-lithium tantalate solid solutions at temperatures up to 900 °C,
Solid State Ionics, Volume 392, 2023, 116147, ISSN 0167-2738,

D. Kohlmann, H. Wulfmeier, M. Schewe, I. Kogut, C. Steiner, R. Moos, C. Rembe, H. Fritze:
Chemical expansion of CeO22d and Ce0.8Zr0.2O22d thin films determined by laser Doppler vibrometry at high temperatures and different oxygen partial pressures
Journal of Materials Science, DOI: 10.1007/s10853-022-07830-4


H. Wulfmeier, N. Warnecke, L. Pasquini, H. Fritze, P. Knauth,
In situ analysis of hydration and ionic conductivity of sulfonated poly(ether ether ketone) thin films using an interdigitated electrode array and a nanobalance,
J. Sens. Sens. Syst. 11 (2022) 51-59;

M. Schulz, R. Ghanavati, F. Kohler, J. Wilde, H. Fritze,
Electromechanical properties of housed piezoelectric CTGS resonators at high temperatures – Modeling of housing influence,
Technisches Messen, 2022;

F. Kohler, M. Farina, M. Schulz, H. Fritze, J. Wilde,
Assembly and Interconnection Technology for High-Temperature Bulk Acoustic Wave Resonators,
Journal of Sensors and Sensor Systems 11 (2022) 83-97;

C. Steiner, G. Hagen, I. Kogut, H. Fritze, R. Moos Analysis of defect chemistry and microstructural effects of non-stoichiometric ceria by the high-temperature microwave cavity perturbation method J. Eur. Ceram. Soc. 42 (2022) 499-511. DOI: 10.1016/j.jeurceramsoc.2021.08.053

H. Wulfmeier, D. Kohlmann, T. Defferriere, C. Steiner, R. Moos, H. L. Tuller, H. Fritze,
Thin-Film Chemical Expansion of Ceria based Solid Solutions: Laser Vibrometry Study, Z.Phys. Chem. 236 (2022) 1013-1053;

S.Schlack, H.Wulfmeier, H. Fritze
Impact of electrode conductivity on mass sensitivity of piezoelectric resonators at high temperatures
J. Sens. Sens. Syst., 11, 299–313, 2022


D. Kohlmann, H. Wulfmeier, M. Schewe, C. Rembe, H. Fritze,
Chemische Ausdehnung von Sensor- und Elektrolytmaterialien bei hohen Temperaturen,
15. Dresdner Sensor-Symposium 2021 (2021) 112/1-6; DOI 10.5162/15dss2021/7.2.

Michal Schulz, Rezvan Ghanavati, Fabian Kohler, Jürgen Wilde, Holger Fritze,
High-temperature behaviour of housed piezoelectric resonators based on CTGS,
J. Sens. Sens. Syst., 10, 2021, 271–279,DOI:

Y. Suhak, D. Roshchupkin, B. Redkin, A. Kabir, B. Jerliu, S. Ganschow, H. Fritze,
Correlation of Electrical Properties and Acoustic Loss in Single Crystalline Lithium Niobate-Tantalate Solid Solutions at Elevated Temperatures,
Crystals 11 (2021) 398.

A. Sotnikov, B. Sorokin, N. Asafiev, D. Shcherbakov, G. Kvashnin, Y. Suhak, H. Fritze, M. Weihnacht, H. Schmidt,
Microwave Acoustic Attenuation in CTGS Single Crystals,
IEEE Trans Ultrason Ferroelectr Freq Control. 2021 Jun 28; 10.1109/TUFFC.2021.3092831.

M. Demyanyshyn, Yu. Suhak, B. G. Mytsyk, О. А. Buryy, Yu. Ya. Маksishko, D. Sugak, H. Fritze,
Anisotropy of piezo-optic and elasto-optic effects in langasite family crystals,
Optical Materials 119 (2021) 111284;

L. Vasylechko, V. Sydorchuk, A  Lakhnik, Y. Suhak, D. Wlodarczyk, S.  Hurskyy, U. Yakhnevych, Y. Zhydachevskyy, D. Sugak, I. Syvorotka, I.  Solskii, O. Buryy, A. Suchocki, Holger Fritze,
Investigations of LiNb1-xTaxO3 nanopowders obtained with mechanochemical method,
Crystals 2021 (11) 755;

O. Buryy, I. I. Syvorotka, Y. Suhak, U. Yakhnevych, D. Sugak, S. Ubizskii, H. Fritze,
Determination of optimal crystallographic orientations for LiNbO3 and LiTaO3 bimorph actuators,
J. Sens. Sens. Syst. 10 (2021) 121-126; -2021.

Yu. Suhak, H. Fritze, A. Sotnikov, H. Schmidt, and W. L. Johnson,
High-temperature electromechanical loss in piezoelectric langasite and catangasite crystals,
J. Appl. Phys 130 (2021) 085102 doi: 10.1063/5.0058751

A. Krampf, M. Imlau, Y. Suhak, H. Fritze, S. Sanna,
Evaluation of similarities and differences of LiTaO3 and LiNbO3 based on high-T-conductivity, nonlinear optical fs-spectroscopy and ab initio modeling of polaronic structures,
New J. Phys. (2021) in press.  DOI: 10.1088/1367-2630/abe3ac

I. Kogut, A. Wollbrink, C. Steiner, H. Wulfmeier, F.-E. El Azzouzi, R. Moos, H. Fritze
Linking the Electrical Conductivity and Non-Stoichiometry of Thin Film Ce1−xZrxO2−δ by a Resonant Nanobalance Approach
Materials 2021, 14, 748 (1-26)

I. Kogut, C. Steiner, H. Wulfmeier, A. Wollbrink, G. Hagen, R. Moos, H. Fritze,
Comparison of the electrical conductivity of bulk and film Ce1–xZrxO2–δ in oxygen-depleted atmospheres at high temperatures
J Mater Sci 56 (2021) 17191–17204, DOI: 10.1007/s10853-021-06348-5

A. Krampf, M. Imlau, Y. Suhak, H. Fritze, S. Sanna,
Evaluation of similarities and differences of LiTaO3 and LiNbO3 based on high-T-conductivity, nonlinear optical fs-spectroscopy and ab initio modeling of polaronic structures,
New J. Phys. (2021) in press.  DOI: 10.1088/1367-2630/abe3ac


R. Kowarsch, Y. Suhak, L. C. Eduarte, M. Mansour, F. Meyer, A. Peschel, H. Fritze, C. Rembe, D. Johannsmann,
Compressional-Wave Effects in the Operation of a Quartz Crystal Mcrobalance in Liquids: Dependence on Overtone Order, Sensors 20 (2020) 2535; doi:10.3390/s20092535.

B. Mytsyk, Y. Suhak, N. Demyanyshyn, O. Buryy, N. Syvorotka, D. Sugak, S. Ubizskii, H. Fritze
Full set of piezo-optic and elasto-optic coefficients of Ca3TaGa3Si2O14 crystals at room temperature.
Appl Opt. 59 (2020) 8951-8958. DOI: 10.1364/AO.398428

D. Roshchupkin, E. Emelin, O. Plotitcyna, F. Rashid, D. Irzhak, V. Karandashev, T. Orlova, N. Targonskaya, S. Sakharov, A. Mololkin, B. Redkin, H. Fritze, Y. Suhak, D. Kovalev, S. Vadilonga, L. Ortega, W. Leitenberger, 
Single crystals of ferroelectric lithium niobate–tantalate LiNb1–xTaxO3 solid solutions for high-temperature sensor and actuator applications,
Acta Cryst. B 76 (2020) 1071-1076. DOI: 10.1107/S2052520620014390

C. Steiner, S. Walter, V. Malashchuk, G. Hagen, I. Kogut, H. Fritze, R. Moos
Determination of the Dielectric Properties of Storage Materials for Exhaust Gas Aftertreatment Using the Microwave Cavity Perturbation Method
Sensors 2020, 20(21), 6024 (1-18). DOI: 10.3390/s20216024.

H. Wulfmeier, R. Feder, L. Zhao, H. Fritze,
High-temperature stable piezoelectric transducers using epitaxially grown electrodes,
Journal of Sensors and Sensor Systems, 9 (2020) 15–26,

J. Ebel, C. Schilling, H. Fritze,
Optimization of soot deposition by high-temperature prepolarization of a resistive particulate matter sensor,
J. Sens. Sens. Syst. 9 (2020) 263–271;

M. Schewe, D. Kohlmann, H. Wulfmeier, H. Fritze und C. Rembe,
Methoden zur Minimierung des Rauscheinflusses durch Hitzeflimmern bei einem heterodynen Laser-Doppler-Vibrometer,
tm – Technisches Messen 2020; 87(S1): S44–S49


vor 2020 (Auszug)

Yu. Suhak, W. L. Johnson, A. Sotnikov, H. Schmidt, and H. Fritze, Transport and Electromechanical Properties of Ca3TaGa3Si2O14 Piezoelectric Crystals at Extreme Temperatures, MRS Advances 4, (2019) 515-521.  DOI: 10.1557/adv.2019.16

Iu. Kogut, C. Hartmann, I. Gamov, Yu. Suhak, M. Schulz, S. Schröder, J. Wollweber, A .Dittmar, K. Irmscher, T. Straubinger, M. Bickermann, H.  Fritze, Electromechanical losses in carbon- and oxygen-containing bulk AlN single crystals, Solid State Ionics 343 (2019) 115072.

I. Gamov, C. Hartmann, J. Wollweber, A. Dittmar, T. Straubinger, M. Bickermann, I. Kogut, H. Fritze, K. Irmscher, Carbon pair defects in aluminum nitride, J. Appl. Phys. 126 (2019) 215102. 

H. Wulfmeier, R. Feder, L. Zhao und H. Fritze, Epitaxial Piezoelectric Langasite Thin Films for High-Temperature Application, MRS Advances, 4 (2019) 523–529 

S. Schröder, H. Fritze, S. Bishop, D. Chen, H. L. Tuller, Thin-Film Thermogravimetry Applied to Praseodymium-Cerium Oxide Films at High Temperatures, Appl. Phys. Lett. 112 (2018) 213502.

S. Schmidtchen, H. Fritze, S. Bishop, D. Chen, H. L. Tuller, Chemical Expansion of Praseodymium-Cerium Oxide Films at High Temperatures, Solid State Ionics 319 (2018) 61-67.

Yu. Suhak, M. Schulz, W. L. Johnson, A. Sotnikov, H. Schmidt, H. Fritze, Electromechanical Properties and Charge Transport of Ca3TaGa3Si2O14 (CTGS) Single Crystals at Elevated Temperatures, Solid State Ionics 317 (2018) 221-228.

Yu. Suhak, M. Schulz, A. Sotnikov, H. Schmidt and H. Fritze Electrical, Electromechanical and Piezoelectric Properties of Ca3TaGa3Si2O14 Resonators at Elevated Temperatures, Acta Physica Polonica A, 133 (2018) 497-501.

O. Pekinchak, D. Yu. Sugak, S. B. Ubizskii, Yu. Suhak, H. Fritze, L. Vasylechko, Thermal Behaviour of PrCo1−xFexO3 Probed by X-ray Synchrotron Powder Diffraction and Impedance Spectroscopy Measurements, Acta Physica Polonica A 133 (2018) 798-801.

A. Omelcenko, H. Wulfmeier, H. Fritze, Planare resonante Temperatursensoren für die Hochtemperatur-Dünnschichtkalorimetrie (Planar resonant temperature sensors for high temperature thin-film calorimetry), tm – Technisches Messen, 85 (2018) 1–12

A. Omelcenko, H. Wulfmeier, D. Albrecht, W. El Mofid, S. Ivanov, A. Bund, H. Fritze, Thin-Film Calorimetry: In-Situ-Characterization of Materials for Lithium-Ion Batteries, Int. J. Mat. Res. 108 (2017) 904-919.

M. Schulz, T. Orland, A. Mehlmann, A. Rothschild, H. Fritze, Oxygen transport in epitaxial SrTiO3/SrTi1−xFexO3 multilayer stacks, J. Sens. Sens. Syst. 6 (2017) 107-119.

Yu. Suhak, M. Schulz, A. Sotnikov, H. Schmidt, S. Ganschow, S. Sakharov and H. Fritze, Dielectric, piezoelectric and elastic constants of Ca3TaGa3Si2O14 single crystals at elevated temperatures, Integrated Ferroelectrics 184 (2017) 1-9.

D. Sugak, I. Syvorotka, O. Buryy, U. Yakhnevych, I. Solskii, N. Martynyuk, Yu. Suhak, A. Suchocki, Ya. Zhydachevskii, R. Jakiela, S. Ubizskii, G. Singh, V. Janyani, Spatial distribution of optical coloration in single crystalline LiNbO3 after high-temperature H2/air treatments, Optical Materials 70 (2017) 106-115.

D. Sugak, I. Syvorotka, O. Buryy, U. Yachnevych, I. Solskii, N. Martynyuk, Yu. Suhak, G. Singh, V. Janyani, and S. Ubizskii, Spatial distribution of LiNbO3 single crystals optical properties changes after redox high-temperature treatment, IOP Conf. Ser.: Mater. Sci. Eng. 169 (2017) 012019.

M. Weihnacht, A. Sotnikov, Yu. Suhak, H. Fritze, H. Schmidt, Accuracy Analysis and Deduced Strategy of Measurement Applied to Ca3TaGa3Si2O14 CTGS Material Characterization, Proc. 2017 IEEE Int. Ultrasonics Symp. (2017).

D. Albrecht, H. Wulfmeier, H. Fritze
Preparation and characterization of c-LiMn2O4 thin films prepared by pulsed laser desposition for Lithium-ion batteries
Energy Technology, 4, 1-8 (2016)

H. Wulfmeier, A. Omelcenko, D. Albrecht, D. Klimm, W. El Mofid, M. Strafela, S. Ulrich, A. Bund, H. Fritze
Thermal stability of materials for thin-film electrochemical cells investaigated by thin-film calorimetry,
MRS Advances, 1, 1043_1049 (2016)

Yu. Suhak, M. Schulz, H. Wulfmeier, W.L. Johnson, A. Sotnikov, H. Schmidt, S. Ganschow, D. Klimm, H. Fritze
Langasite-Type Resonant Sensors for Harsh Environments
MRS Advances, 1, 1513-1518 (2016)

M. Schulz, E. Mayer, I. Shrena, D. Eisele, M. Schmitt, L. M. Reindl, H. Fritze
Correla-tion of BAW and SAW properties of langasite at elevated temperatures
J. Sens. Sens. Syst. 4 (2015) 331–340.

H. Wulfmeier, D. Albrecht, J. Fischer, S. Ivanov, A. Bund, S. Ulrich, H. Fritze
Thin-Film Calorimetry: Analytical Tool für In-Situ Characterization of Lithium Ion Batteries
Journal of The Electronical Society (2015) A727-A736

Y. Suhak, M. Schulz, D. Richter, H. Fritze
High- Temperature Acoustical and Electrical Properties of LGS, LGT und CTGS
Solid State Phenomena 230 (2015) 267-272

A. Yatsenko, A. Pritulenko, S. Yevdokimov, D. Sugak, I. Syvorotka, Yu. Suhak, I. Solskii, M. Vaktiv
The Influence of Annealing in Saturated Water Vapor on LiNbO3 Crystals Optical and Electrical Properies
Solid State Phenomena 230 (2015) 233-237

M. Körner, M. Schulz, M. H. Fritze, Ch. Stenzel, Control of partial pressure of oxygen in the ppm range based on a two metal-oxide buffer system, Sensors and Actuators B: Chemical Volume 190 (2014) 702-706

W.L. Johnson, M. Schulz, H. Fritze, High-temperature electroacoustic characterization of Y-cut and singly-rotated Ca3TaGa3Si2O14 resonators
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Volume: 64 (2014) 1433-1441

M. Schulz, H. Fritze, W.L. Johnson, High-Temperature Electromechanical Properties of CTGS, MRS Proceedings Volume 1655 (2014)

S. Ivanov, L. Cheng, H. Wulfmeier, D. Albrecht, H. Fritze, A. Bund
Electrochemical behavior of anodically obtained titania nanotubes inorganic carbonate and ionic liquid based Li ion containing electrolytes
Electrochimica Acta 104 (2013) 228-235

D. Albrecht, H. Wulfmeier, S. Ivanov, A. Bund, H. Fritze
Synthesis of Different Molybdenum Disulfide Nanostructures and their Applicability in Lithium Ion Batteries with Ionic Liquid Electrolytes
MRS Proceed. (2013) 1496

D. Albrecht, H. Wulfmeier, S. Ivanov, A. Bund, H. Fritze
Elecrochemical Performance of Ionic Liquid - Molybdenum Disulfide Li-Ion Batteries
Journal of Applied Electrochemistry 43 (2013) 559-565

D. Richter, M. Schulz, S. Sakharov, Z.J. Davis, H. Fritze
Surface Acoustic Wave Devices: Materials Stability in Harsh Environments
MRS Proceed. (2013) 1519

S. Schmidtchen, D. Richter, J. Sauerwald, H. Fritze
Miniaturized resonant sensors for harsh environments
Proc. SPIE 8725, Micro- and Nanotechnology Sensors, Systems, and Applications V (2013) 8725, 87250J

H. Wulfmeier, D. Albrecht, S. Ivanov, J. Fischer, R. Grieseler, P. Schaaf, S. Ulrich, A. Bund, H. Fritze
Thin Film Calorimetry - Device Development and Application to Lithium Ion Battery Materials
MRS Proceed. (2013) 1496

H. Wulfmeier, D. Albrecht, S. Ivanov, J. Fischer, S. Ulrich, A. Bund, H. Fritze
High-temperature thin-film calorimetry: a newly developed method applied to lithium ion battery materials
Journal of Materials Science (2013)

H. Fritze
Successful Start of the DTM Seminar Series ”High-Temperature Sensors”
Int. J. Mater. Res. 103 (2012) 522

A. Weidenfelder, H. Fritze, P. Fielitz, G. Borchardt, J. Shi, K. Becker,S. Ganschow
Transport and Electromechanical Properties of Stoichiometric Lithium Niobate at High Temperatures
Zeitschrift für Physikalische Chemie 226 (2012) 421-429

S. Schmidtchen, D. Richter, H. Fritze
Variation of the vibration profile of piezoelectric resonant sensors with different electrode conductivity at high temperatures
Sens. Act. B: Chemical (2012)

S. Schaab, M. Schulz, H. Fritze, E.-A. Eichel, E. Erdem, C. Rüscher, S. Hummelt, T. Granzow
Influence of reducing atmosphere on the defect chemistry of lead lanthanum zirconate titanate (8/65/35)
Solid State Ionics 228 (2012) 56-63

B. Francois, D. Richter, H. Fritze, Z.J. Davis, C. Droit, B. Guichardaz, V. Petrini, G. Martin, J.-M. Friedt, S. Ballandras
Wireless and passive sensors for high temperature measurements
Sensordevices (2012) 46-51

M. Schulz, H. Fritze, C. Stenzel
Measurement and Control of Oxygen Partial Pressure at Elevated Temperatures
Proceedings of IMCS (2012) 1587-1590

A. Weidenfelder, J. Shi, P. Fielitz, G. Borchardt, K.D. Becker, H. Fritze
Electrical and Electromechanicel Properties of Stoichiometric Lithium Niobate at High-Temperatures
Solid State Ionics 225 (2012) 26-29

M. Schulz, J. Brillo, C. Stenzel, H. Fritze
Oxygen Partial Pressue Control for Microgravity Experiments
Solid State Ionics 225 (2012) 332-336
[Online publication 5-May-2012,]

D. Richter, S. Sakharov, E. Forsén, E. Mayer, L. Reindl, H. Fritze
Thin Film Electrodes for High Temperature Surface Acoustic Wave Devices
Procedia Engineering 25 (2011) 168-

H. Fritze, High-Temperature piezoelelctric crystals and devices, J. Electroceramics 26 (2011) 122-161

P. Fielitz, O. Schneider, G. Borchardt, A. Weidenfelder, H. Fritze, J. Shi, K. D. Becker, S. Ganschow, R. Bertram,
Oxygen 18 Tracer Diffusion in Nearly Stoichiometric Single Crystalline Lithium Niobate,
Solid State Ionics 189 (2011) 1-6.

J. Shi, H. Fritze, G. Borchardt and K.-D. Becker
Defect chemistry, redox kinetics and chemical diffusion in lithium deficient lithium niobate
PCCP 13 (2011) 6925-6930.

S. Schmidtchen, D. Richter, H. Xia, H. Fritze
Film Conductivity Controlled Variation of the Amplitude Distribution of High-Temperature Resonators,
Mater. Res. Soc. Symp. Proc. 1299 (2011) 117-122

M. Schulz, J. Sauerwald, H. Seh, H. Fritze, Harry L. Tuller
Defect Chemistry Based Design of Monolithic Langasite Structures for High Temperature Sensors
Solid State Ionics 184 (2011) 78-82.

H. Fritze
High-temperature bulk acoustic wave sensors
Meas. Sci. Technol. 22 (2011) 12002 (28pp).

J. Sauerwald, D. Richter, E. Ansorge, B. Schmidt, H. Fritze
Langasite based miniaturized functional structures - Preparation, high-temperature properties and applications
Phys. Status Solidi A 208 (2011) 390-403.

E. Ansorge, B. Schmidt, J. Sauerwald, H. Fritze,
Langasite for microelectromechanical systems
Phys. Status Solidi A 208 (2011) 377–389.

J. Sauerwald, M. Schulz, D. Richter, H. Fritze
Diffusion in High-temperature Piezoelectric Single Crystals
ECS Transactions 25 (2010) 135-146.

M. Schulz, D. Richter, J. Sauerwald, H. Fritze
Solid State Sensors for Selective Gas Detection at High Temperatures – Principles and Challenges
Integrated Ferroelectrics 115 (2010) 41-56.

C. H. Swanson, M. Schulz, H. Fritze, J. Shi, K.-D. Becker, P. Fielitz, G. Borchardt,
Examinations of High-Temperature Properties of Stoichiometric Lithium Niobate
Diff. Fund. 12 (2010) 48-49.

E. Ansorge, J. Sauerwald, H. Fritze, B. Schmidt
Modeling of Energy Confinement of Plano-Convex Shaped Resonators for Applications at High Temperatures
IEEE Sensors (2009) 209-212.

M. Schulz, D. Richter, H. Fritze
Material and Resonator Design Dependent Loss in Langasite Bulk Acoustic Wave Resonators at High Temperatures
IEEE Ultrasonics (2009) 1676-1679.

J. Sauerwald, D. Richter, H. Fritze
Micromachined piezoelectric structures for high-temperature sensors
J. Electroceramics 22 (2009) 180-184.

M. Schulz, J. Sauerwald, D. Richter, H. Fritze
Electromechanical properties and defect chemistry of high-temperature piezoelectric materials
Ionics 15 (2009) 157-161.

E. Ansorge, S. Schimpf, S. Hirsch, B. Schmidt, J. Sauerwald, H. Fritze
Piezoelectrically driven spherically contoured resonators in LGS for high temperature applications
IEEE MEMS (2008) 669-672.

D. Richter, J. Sauerwald, H. Fritze, E. Ansorge, B. Schmidt
Miniaturized Resonant Gas Sensors for High-Temperature Applications
IEEE Sensors (2008) 1536-1539.

J. Bardong, M. Schulz, M. Schmitt, I. Shrena, D. Eisele, E. Mayer, L. M. Reindl, H. Fritze
Precise Measurements of BAW and SAW Properties of Langasite in the Temperature Range from 25 °C to 1000 °C
IEEE Transactions on UFFC (2008) 326-331.

G. Ohlendorf, D. Richter, J. Sauerwald, H. Fritze
High-Temperature Electrical Conductivity and Electromechanical Properties of Stoichiometric Lithium Niobate
Diff. Fund. 8 (2008) 6.1-6.7.

E. Ansorge, S. Hirsch, B. Schmidt, J. Sauerwald, H. Fritze
Design and Fabrication of High-Q Langasite Resonator Arrays for High Temperature Applications
IEEE Transactions on UFFC (2008) 619-624.

J. Sauerwald, D. Richter, E. Ansorge, B. Schmidt, H. Fritze
Doped Monolithic Langasite Structures for High Temperature MEMS
Solid State Ionics 179 (2008) 928-931.

M. Schulz, H. Fritze
Electromechanical Properties of Langasite Resonators at Elevated Temperatures
Journal of Renewable Energy 33 (2008) 336-341.